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Limited TABLE PRODUCT OF CONTENTS SPECIFICATION 1 (1) (3) SEC/D Kevin Chen 152-EN/LZT146311 1/131-BMR632 Technical Uen Specification PKL 4 PI series 26-12-4 27-1-11 B D DC/DC converters, Input 36-, Output 1 A/3 W Key Features The double P extended Half-brick 61.5 x 61. x 12.7 mm (2.42 x 2.4 x.5 in.) High efficiency, typ. 88 % at 1.8 V out full load 15 Vdc input to output isolation Meets isolation requirements equivalent to basic insulation according to IEC/EN/UL 695 Low output ripple, 6 mvp-p typ. General Characteristics Used in inter-networking equipment in Wireless and Wired communications and Datacom applications Output over voltage protection Input under voltage protection Over temperature protection Soft start Output short-circuit protection Remote sense Remote control Output voltage adjust function Highly automated manufacturing ensures quality ISO 91/141 certified supplier Safety Approvals Design for Environment Meets requirements in hightemperature lead-free soldering processes. Contents General Information... 2 Safety Specification... 3 Absolute Maximum Ratings... 4 Product Program Ordering 1.8 V/6 A Electrical Specification PKL 4118 PIT... 5 1.8 V/8 A Electrical Specification PKL 4118B PIT... 8 1.8 V/1 A Electrical Specification PKL 4118A PIT... 11 2.5 V/6 A Electrical Specification PKL 4119A PIT... 14 2.5 V/8 A Electrical Specification PKL 4219A PIT... 17 3.3 V/5 A Electrical Specification PKL 411 PIT... 2 3.3 V/6 A Electrical Specification PKL 411A PIT... 23 5 V/6 A Electrical Specification PKL 4311 PIT... 26 12 V/25 A Electrical Specification PKL 4313 PIT... 29 EMC Specification... 32 Operating Information... 33 Thermal Consideration... 34 Connections... 35 Mechanical Information... 36 Soldering Information... 37 Delivery Information... 37 Product Qualification Specification... 38

SEC/D Kevin Chen PRODUCT SPECIFICATION 2 (3) 1/131-BMR632 Technical Uen Specification 2 PKL 4 PI series 27-1-11 D DC/DC converters, Input 36-, Output 1 A/3 W General Information Ordering Information See Contents for individual product ordering numbers. Option Suffix Ordering Positive Remote Control Logic Lead length 3.69 mm (.145 in) Lead length 4.57 mm (.18 in) Lead length 2.8 mm (.11 in) P LA LB LC PKL 4219A PIPT PKL 4118B PITLA PKL 4118B PITLB PKL 4118B PITLC Note: As an example a positive logic, short pin product would be PKL 4118B PIPTLA Reliability The Mean Time Between Failure (MTBF) is calculated at full output power and an operating ambient temperature (T A ) of +4 C. Different methods could be used to calculate the predicted MTBF and failure rate which may give different results. Ericsson Power Modules currently uses two different methods, Ericsson failure rate data system DependTool and Telcordia SR332. Predicted MTBF for the series is: - 2.2 million hours according to DependTool. - 1.5 million hours according to TelCordia SR332, issue 1, Black box technique. The Ericsson failure rate data system is based on field tracking data. The data corresponds to actual failre rates of components used in Information Technology and Telecom (IT&T) equipment in temperature controlled environments (T A = -5...+65 C). Telcordia SR332 is a commonly used standard method intended for reliability calculations in IT&T equipment. The parts count procedure used in this method was originally modelled on the methods from MIL-HDBK-217F, Reliability Predictions of Electronic Equipment. It assumes that no reliability data is available on the actual units and devices for which the predictions are to be made, i.e. all predictions are based on generic reliability parameters. Compatibility with RoHS requirements The products are compatible with the relevant clauses and requirements of the RoHS directive 22/95/EC and have a maximum concentration value of.1% by weight in homogeneous materials for lead, mercury, hexavalent chromium, PBB and PBDE and of.1% by weight in homogeneous materials for cadmium. Exemptions in the RoHS directive utilized in Ericsson Power Modules products include: - Lead in high melting temperature type solder (used to solder the die in semiconductor packages) - Lead in glass of electronics components and in electronic ceramic parts (e.g. fill material in chip resistors) - Lead as an alloying element in copper alloy containing up to 4% lead by weight (used in connection pins made of Brass) Quality Statement The products are designed and manufactured in an industrial environment where quality systems and methods like ISO 9, 6σ (sigma), and SPC are intensively in use to boost the continuous improvements strategy. Infant mortality or early failures in the products are screened out and they are subjected to an ATE-based final test. Conservative design rules, design reviews and product qualifications, plus the high competence of an engaged work force, contribute to the high quality of our products. Warranty Warranty period and conditions are defined in Ericsson Power Modules General Terms and Conditions of Sale. Limitation of Liability Ericsson Power Modules does not make any other warranties, expressed or implied including any warranty of merchantability or fitness for a particular purpose (including, but not limited to, use in life support applications, where malfunctions of product can cause injury to a persons health or life).

SEC/D Kevin Chen PRODUCT SPECIFICATION 3 (3) 1/131-BMR632 Technical Uen Specification 3 PKL 4 PI series 27-1-11 D DC/DC converters, Input 36-, Output 1 A/3 W Safety Specification General information Ericsson Power Modules DC/DC converters and DC/DC regulators are designed in accordance with safety standards IEC/EN/UL695, Safety of Information Technology Equipment. IEC/EN/UL695 contains requirements to prevent injury or damage due to the following hazards: Electrical shock Energy hazards Fire Mechanical and heat hazards Radiation hazards Chemical hazards On-board DC-DC converters are defined as component power supplies. As components they cannot fully comply with the provisions of any Safety requirements without Conditions of Acceptability. It is the responsibility of the installer to ensure that the final product housing these components complies with the requirements of all applicable Safety standards and Directives for the final product. Component power supplies for general use should comply with the requirements in IEC695, EN695 and UL695 Safety of information technology equipment. There are other more product related standards, e.g. IEEE82.3af Ethernet LAN/MAN Data terminal equipment power, and ETS3132-2 Power supply interface at the input to telecommunications equipment; part 2: DC, but all of these standards are based on IEC/EN/UL695 with regards to safety. Ericsson Power Modules DC/DC converters and DC/DC regulators are UL695 recognized and certified in accordance with EN695. The flammability rating for all construction parts of the products meets requirements for V- class material according to IEC 6695-11-1. The products should be installed in the end-use equipment, in accordance with the requirements of the ultimate application. Normally the output of the DC/DC converter is considered as SELV (Safety Extra Low Voltage) and the input source must be isolated by minimum Double or Reinforced Insulation from the primary circuit (AC mains) in accordance with IEC/EN/UL695. Isolated DC/DC converters It is recommended that a slow blow fuse with a rating twice the maximum input current per selected product be used at the input of each DC/DC converter. If an input filter is used in the circuit the fuse should be placed in front of the input filter. In the rare event of a component problem in the input filter or in the DC/DC converter that imposes a short circuit on the input source, this fuse will provide the following functions: Isolate the faulty DC/DC converter from the input power source so as not to affect the operation of other parts of the system. Protect the distribution wiring from excessive current and power loss thus preventing hazardous overheating. The galvanic isolation is verified in an electric strength test. The test voltage (V iso ) between input and output is 15 Vdc or 225 Vdc for 6 seconds (refer to product specification). Leakage current is less than 1 μa at nominal input voltage. 24 V DC systems The input voltage to the DC/DC converter is SELV (Safety Extra Low Voltage) and the output remains SELV under normal and abnormal operating conditions. 48 and 6 V DC systems If the input voltage to Ericsson Power Modules DC/DC converter is dc or less, then the output remains SELV (Safety Extra Low Voltage) under normal and abnormal operating conditions. Single fault testing in the input power supply circuit should be performed with the DC/DC converter connected to demonstrate that the input voltage does not exceed dc. If the input power source circuit is a DC power system, the source may be treated as a TNV2 circuit and testing has demonstrated compliance with SELV limits and isolation requirements equivalent to Basic Insulation in accordance with IEC/EN/UL695. Non-isolated DC/DC regulators The input voltage to the DC/DC regulator is SELV (Safety Extra Low Voltage) and the output remains SELV under normal and abnormal operating conditions.

PRODUCT SPECIFICATION 1 (29) 2/131-BMR632 Technical Uen Specification 4 DC/DC converters, Input 36-, Output 1 A/3 W Absolute Maximum Ratings Characteristics min typ max Unit T ref Operating Temperature (see Thermal Consideration section) -4 +1 C T S Storage temperature -55 +125 C V I Input voltage -.5 +8 V V iso Isolation voltage (input to output test voltage) 15 Vdc V tr Input voltage transient (Tp 1 ms) 1 V V RC Remote Control pin voltage Positive logic option -.5 15 V (see Operating Information section) Negative logic option -.5 15 V V adj Adjust pin voltage (see Operating Information section) -.5 2xV oi V Stress in excess of Absolute Maximum Ratings may cause permanent damage. Absolute Maximum Ratings, sometimes referred to as no destruction limits, are normally tested with one parameter at a time exceeding the limits of Output data or Electrical Characteristics. If exposed to stress above these limits, function and performance may degrade in an unspecified manner. Fundamental Circuit Diagram All except PKL4118 (1.8Vout) products: PKL4118 (1.8Vout) products: + In Primary Secondary + Out + Sense Primary Driver Secondary Driver - Sense - Out Bias supply and OTP Isolated Feedback Control and Supervision Vadj RC - In

PRODUCT SPECIFICATION 2 (29) 2/131-BMR632 Technical Uen Specification 5 DC/DC converters, Input 36-, Output 1 A/3 W 1.8 V/6 A Electrical Specification PKL 4118 PIT T ref = -4 to +1ºC, V I = 36 to, sense pins connected to output pins unless otherwise specified under Conditions. Typical values given at: T ref = +25 C, V I =, max I O, unless otherwise specified under Conditions. Characteristics Conditions min typ max Unit V I Input voltage range 36 V Ioff Turn-off input voltage Decreasing input voltage 3 32.5 35 V V Ion Turn-on input voltage Increasing input voltage 32 34.5 C I Internal input capacitance 2.18 F P O Output power Output voltage initial setting 18 W SVR Supply voltage rejection (ac) f = 1 Hz sinewave, 1 Vp-p 53 db Efficiency 5 % of max I O 9 max I O 88 5 % of max I O, V I = TBD max I O, V I = TBD P d Power Dissipation max I O 15 W P li Input idling power I O = A, V I = 3.7 W P RC Input standby power V I = (turned off with RC).34 W f s Switching frequency -1 % of max I O 15 khz % V Oi V O V tr t tr t r t s t f t RC Output voltage initial setting and accuracy T ref = +25 C, V I =, I O = 6 A 1.77 1.8 1.83 V Output adjust range See operating information 1.44 2. V Output voltage tolerance band 1-1% of max I O 1.746 1.854 V Idling voltage I O = A 1.746 1.9 V Line regulation max I O 5 15 mv Load regulation V I =, -1% of max I O 5 15 mv Load transient V I =, Load step 25-5-25 % of voltage deviation max I O, di/dt = 1 A/ s, ±2 mv Load transient recovery time 1 μs Ramp-up time 12 16 ms (from 1 9 % of V Oi ) 1-1% of max I O Start-up time 16 2 ms (from V I connection to 9% of V Oi ) Vin shutdown fall time max I O N/A ms (from V I off to 1% of V O ) I O = A N/A s RC start-up time max I O N/A ms RC shutdown fall time max I O N/A ms (from RC off to 1% of V O ) I O = A N/A s I O Output current 6 A I lim Current limit threshold T ref < max T ref 64 66 68 A I sc Short circuit current T ref = 25ºC, see Note 1 69 74 78 A V Oac OVP Output ripple & noise Over voltage protection Note 1: See Operating Information section. See ripple & noise section, max I O, V Oi 5 1 mvp-p T ref = +25 C, V I =, -1% of max I O 2.51 2.9 V

PRODUCT SPECIFICATION 3 (29) 2/131-BMR632 Technical Uen Specification 6 DC/DC converters, Input 36-, Output 1 A/3 W 1.8 V/6 A Typical Characteristics PKL 4118 PIT Efficiency Power Dissipation [%] 95 9 [W] 2 15 85 1 8 75 5 7 1 2 3 4 5 6 [A] 1 2 3 4 5 6 [A] Efficiency vs. load current and input voltage at T ref = +25 C Dissipated power vs. load current and input voltage at T ref = +25 C Output Current Derating Thermal Resistance [A] 6 5 4 3 2 1 3. m/s 2.5 m/s 2. m/s 1.5 m/s 1. m/s.5 m/s Nat. Conv. [ C/W] 5 4 3 2 1 2 4 6 8 1 [ C]..5 1. 1.5 2. 2.5 3.[m/s] Available load current vs. ambient air temperature and airflow at V I =. See Thermal Consideration section. Thermal resistance vs. airspeed measured at the converter. Tested in wind tunnel with airflow and test conditions as per the Thermal consideration section. Output Characteristics Current Limit Characteristics [V] 2. 1.9 1.8 [V] 2. 1.5 1. 1.7.5 1.6 1 2 3 4 5 6 [A]. 3 4 5 6 7 8 [A] Output voltage vs. load current at T ref = +25 C Output voltage vs. load current at I O > max I O, T ref = +25 C

PRODUCT SPECIFICATION 4 (29) 2/131-BMR632 Technical Uen Specification 7 DC/DC converters, Input 36-, Output 1 A/3 W 1.8 V/6 A Typical Characteristics PKL 4118 PIT Start-up Shut-down Start-up enabled by connecting V I at: T ref = +25 C, V I =, I O = 6 A resistive load. Top trace: output voltage (.5 V/div.). Bottom trace: input voltage (2 V/div.). Time scale: (1 ms/div.). Shut-down enabled by disconnecting V I at: T ref = +25 C, V I =, I O = 6 A resistive load. Top trace: output voltage (.5 V/div.). Bottom trace: input voltage (2 V/div.). Time scale: (.5 ms/div.). Output Ripple & Noise Output Load Transient Response Output voltage ripple at: T ref = +25 C, V I =, I O = 6 A resistive load. Trace: output voltage (5mV/div.). Time scale: (2 μs/div.). Output voltage response to load current stepchange (15-3-15 A) at: Time scale: (.1 ms/div.). Trace: output voltage (1mV/div.). T ref =+25 C, V I =. Output Voltage Adjust (see operating information) Passive adjust The resistor value for an adjusted output voltage is calculated by using the following equations: Output Voltage Adjust Upwards, Increase: R adj = [(Vo(1+ %)/(1.225 %)-(1+2 %)/ %) k Eg Increase 5% =>V out = 1.89 Vdc 1.8(1+5)/(1.225x5)-(1+2x5)/5 = 8.8 k Output Voltage Adjust Downwards, Decrease: R adj = (1 / %-2) k Eg Decrease 5% =>V out = 1.71 Vdc (1/5-2)= 18 k

PRODUCT SPECIFICATION 5 (29) 2/131-BMR632 Technical Uen Specification 8 DC/DC converters, Input 36-, Output 1 A/3 W 1.8 V/8 A Electrical Specification PKL 4118 BPIT T ref = -4 to +1ºC, V I = 36 to, sense pins connected to output pins unless otherwise specified under Conditions. Typical values given at: T ref = +25 C, V I =, max I O, unless otherwise specified under Conditions. Characteristics Conditions min typ max Unit V I Input voltage range 36 V Ioff Turn-off input voltage Decreasing input voltage 3 32.5 35 V V Ion Turn-on input voltage Increasing input voltage 32 34.5 C I Internal input capacitance 2.18 F P O Output power Output voltage initial setting 144 W SVR Supply voltage rejection (ac) f = 1 Hz sinewave, 1 Vp-p 53 db Efficiency 5 % of max I O 89 max I O 85 5 % of max I O, V I = 89 max I O, V I = 85 P d Power Dissipation max I O 25 W P li Input idling power I O = A, V I = 3.7 W P RC Input standby power V I = (turned off with RC).33 W f s Switching frequency -1 % of max I O 15 khz % V Oi V O V tr t tr t r t s t f t RC Output voltage initial setting and accuracy T ref = +25 C, V I =, I O = 8 A 1.77 1.8 1.83 V Output adjust range See operating information 1.44 2. V Output voltage tolerance band 1-1% of max I O 1.746 1.854 V Idling voltage I O = A 1.746 1.9 V Line regulation max I O 5 15 mv Load regulation V I =, -1% of max I O 5 15 mv Load transient V I =, Load step 25-5-25 % of voltage deviation max I O, di/dt = 1 A/ s, ±2 mv Load transient recovery time 1 μs Ramp-up time 16 2 ms (from 1 9 % of V Oi ) 1-1% of max I O Start-up time 2 3 ms (from V I connection to 9% of V Oi ) Vin shutdown fall time max I O N/A ms (from V I off to 1% of V O ) I O = A N/A s RC start-up time max I O 1 ms RC shutdown fall time max I O N/A ms (from RC off to 1% of V O ) I O = A N/A s I O Output current 8 A I lim Current limit threshold T ref < max T ref 92.5 93. 93.5 A I sc Short circuit current T ref = 25ºC, see Note 1 96 97 98 A V Oac OVP Output ripple & noise Over voltage protection Note 1: See Operating Information section. See ripple & noise section, max I O, V Oi 1 15 mvp-p T ref = +25 C, V I =, -1% of max I O 2.51 2.9 V

PRODUCT SPECIFICATION 6 (29) 2/131-BMR632 Technical Uen Specification 9 DC/DC converters, Input 36-, Output 1 A/3 W 1.8 V/8 A Typical Characteristics PKL 4118 BPIT Efficiency Power Dissipation [%] 95 9 85 [W] 3 2 8 1 75 7 2 4 6 8 [A] 2 4 6 8 [A] Efficiency vs. load current and input voltage at T ref = +25 C Output Current Derating Dissipated power vs. load current and input voltage at T ref = +25 C Thermal Resistance [A] 8 3. m/s [ C/W] 4 6 2.5 m/s 2. m/s 3 4 2 2 4 6 8 1 [ C] 1.5 m/s 1. m/s.5 m/s Nat. Conv. 2 1..5 1. 1.5 2. 2.5 3.[m/s] Available load current vs. ambient air temperature and airflow at V I =. See Thermal Consideration section. Thermal resistance vs. airspeed measured at the converter. Tested in wind tunnel with airflow and test conditions as per the Thermal consideration section. Output Characteristics Current Limit Characteristics [V] 2. 1.9 1.8 [V] 2. 1.5 1. 1.7.5 1.6 2 4 6 8 [A]. 4 6 8 1 12 [A] Output voltage vs. load current at T ref = +25 C Output voltage vs. load current at I O > max I O, T ref = +25 C

PRODUCT SPECIFICATION 7 (29) 2/131-BMR632 Technical Uen Specification 1 DC/DC converters, Input 36-, Output 1 A/3 W 1.8 V/8 A Typical Characteristics PKL 4118 BPIT Start-up Shut-down Start-up enabled by connecting V I at: T ref = +25 C, V I =, I O = 8 A resistive load. Top trace: output voltage (1 V/div.). Bottom trace: input voltage (2 V/div.). Time scale: (2 ms/div.). Shut-down enabled by disconnecting V I at: T ref = +25 C, V I =, I O = 8 A resistive load. Top trace: output voltage (1 V/div.). Bottom trace: input voltage (5 V/div.). Time scale: (.5 ms/div.). Output Ripple & Noise Output Load Transient Response Output voltage ripple at: T ref = +25 C, V I =, I O = 8 A resistive load. Trace: output voltage (5mV/div.). Time scale: (2 μs/div.). Output voltage response to load current stepchange (2-4-2 A) at: Time scale: (.1 ms/div.). Trace: output voltage (2mV/div.). T ref =+25 C, V I =. Output Voltage Adjust (see operating information) Passive adjust The resistor value for an adjusted output voltage is calculated by using the following equations: Output Voltage Adjust Upwards, Increase: R adj = [(Vo(1+ %)/(1.225 %)-(1+2 %)/ %) k Eg Increase 5% =>V out = 1.89 Vdc 1.8(1+5)/(1.225x5)-(1+2x5)/5 = 8.8 k Output Voltage Adjust Downwards, Decrease: R adj = (1 / %-2) k Eg Decrease 5% =>V out = 1.71 Vdc (1/5-2)= 18 k

PRODUCT SPECIFICATION 8 (29) 2/131-BMR632 Technical Uen Specification 11 DC/DC converters, Input 36-, Output 1 A/3 W 1.8 V/1 A Electrical Specification PKL 4118 APIT T ref = -4 to +1ºC, V I = 36 to, sense pins connected to output pins unless otherwise specified under Conditions. Typical values given at: T ref = +25 C, V I =, max I O, unless otherwise specified under Conditions. Characteristics Conditions min typ max Unit V I Input voltage range 36 V Ioff Turn-off input voltage Decreasing input voltage 3 32.5 35 V V Ion Turn-on input voltage Increasing input voltage 32 34.5 C I Internal input capacitance 2.18 F P O Output power Output voltage initial setting 18 W SVR Supply voltage rejection (ac) f = 1 Hz sinewave, 1 Vp-p 53 db Efficiency 5 % of max I O 88 max I O 83 5 % of max I O, V I = 88 max I O, V I = 83 P d Power Dissipation max I O 37 W P li Input idling power I O = A, V I = 3.7 W P RC Input standby power V I = (turned off with RC).33 W f s Switching frequency -1 % of max I O 15 khz % V Oi V O V tr t tr t r t s t f t RC Output voltage initial setting and accuracy T ref = +25 C, V I =, I O = 1 A 1.77 1.8 1.83 V Output adjust range See operating information 1.44 2. V Output voltage tolerance band 1-1% of max I O 1.746 1.854 V Idling voltage I O = A 1.746 1.9 V Line regulation max I O 5 15 mv Load regulation V I =, -1% of max I O 5 15 mv Load transient V I =, Load step 25-5-25 % of voltage deviation max I O, di/dt = 1 A/ s, ±2 mv Load transient recovery time 5 μs Ramp-up time 16 2 ms (from 1 9 % of V Oi ) 1-1% of max I O Start-up time 2 3 ms (from V I connection to 9% of V Oi ) Vin shutdown fall time max I O N/A ms (from V I off to 1% of V O ) I O = A N/A s RC start-up time max I O 1 ms RC shutdown fall time max I O N/A ms (from RC off to 1% of V O ) I O = A N/A s I O Output current 1 A I lim Current limit threshold T ref < max T ref 11 128 A I sc Short circuit current T ref = 25ºC, see Note 1 125 135 A V Oac OVP Output ripple & noise Over voltage protection Note 1: See Operating Information section. See ripple & noise section, max I O, V Oi 1 15 mvp-p T ref = +25 C, V I =, -1% of max I O 2.51 2.9 V

PRODUCT SPECIFICATION 9 (29) 2/131-BMR632 Technical Uen Specification 12 DC/DC converters, Input 36-, Output 1 A/3 W 1.8 V/1 A Typical Characteristics PKL 4118 APIT Efficiency Power Dissipation [%] 95 9 85 8 [W] 5 4 3 2 75 1 7 2 4 6 8 1 [A] 2 4 6 8 1 [A] Efficiency vs. load current and input voltage at T ref = +25 C Dissipated power vs. load current and input voltage at T ref = +25 C Output Current Derating Thermal Resistance [A] 1 8 6 4 3. m/s 2.5 m/s 2. m/s 1.5 m/s 1. m/s [ C/W] 4 3 2 2.5 m/s 1 2 4 6 8 1 [ C] Nat. Conv...5 1. 1.5 2. 2.5 3.[m/s] Available load current vs. ambient air temperature and airflow at V I =. See Thermal Consideration section. Thermal resistance vs. airspeed measured at the converter. Tested in wind tunnel with airflow and test conditions as per the Thermal consideration section. Output Characteristics Current Limit Characteristics [V] 2. 1.9 1.8 [V] 2. 1.5 1. 1.7.5 1.6 2 4 6 8 1 [A]. 5 7 9 11 13 [A] Output voltage vs. load current at T ref = +25 C Output voltage vs. load current at I O > max I O, T ref = +25 C

PRODUCT SPECIFICATION 1 (29) 2/131-BMR632 Technical Uen Specification 13 DC/DC converters, Input 36-, Output 1 A/3 W 1.8 V/1 A Typical Characteristics PKL 4118 APIT Start-up Shut-down Start-up enabled by connecting V I at: T ref = +25 C, V I =, I O = 1 A resistive load. Top trace: output voltage (1 V/div.). Bottom trace: input voltage (2 V/div.). Time scale: (2 ms/div.). Shut-down enabled by disconnecting V I at: T ref = +25 C, V I =, I O = 1 A resistive load. Top trace: output voltage (.5 V/div.). Bottom trace: input voltage (5 V/div.). Time scale: (1 ms/div.). Output Ripple & Noise Output Load Transient Response Output voltage ripple at: T ref = +25 C, V I =, I O = 1 A resistive load. Trace: output voltage (5mV/div.). Time scale: (2 μs/div.). Output voltage response to load current stepchange (25-5-25 A) at: Time scale: (.1 ms/div.). Trace: output voltage (1mV/div.). T ref =+25 C, V I =. Output Voltage Adjust (see operating information) Passive adjust The resistor value for an adjusted output voltage is calculated by using the following equations: Output Voltage Adjust Upwards, Increase: R adj = [(Vo(1+ %)/(1.225 %)-(1+2 %)/ %) k Eg Increase 5% =>V out = 1.89 Vdc 1.8(1+5)/(1.225x5)-(1+2x5)/5 = 8.8 k Output Voltage Adjust Downwards, Decrease: R adj = (1 / %-2) k Eg Decrease 5% =>V out = 1.71 Vdc (1/5-2)= 18 k

PRODUCT SPECIFICATION 11 (29) 2/131-BMR632 Technical Uen Specification 14 DC/DC converters, Input 36-, Output 1 A/3 W 2.5 V/6 A Electrical Specification PKL 4119 APIT T ref = -4 to +1ºC, V I = 36 to, sense pins connected to output pins unless otherwise specified under Conditions. Typical values given at: T ref = +25 C, V I =, max I O, unless otherwise specified under Conditions. Characteristics Conditions min typ max Unit V I Input voltage range 36 V Ioff Turn-off input voltage Decreasing input voltage 3 32.5 35 V V Ion Turn-on input voltage Increasing input voltage 32 34.5 C I Internal input capacitance 2.18 F P O Output power Output voltage initial setting 15 W SVR Supply voltage rejection (ac) f = 1 Hz sinewave, 1 Vp-p 53 db Efficiency 5 % of max I O 89 max I O 86.5 5 % of max I O, V I = 9 max I O, V I = 87 P d Power Dissipation max I O 24 W P li Input idling power I O = A, V I = 4.6 W P RC Input standby power V I = (turned off with RC).47 W f s Switching frequency -1 % of max I O 2 khz % V Oi V O V tr t tr t r t s t f t RC Output voltage initial setting and accuracy T ref = +25 C, V I =, I O = 6 A 2.45 2.5 2.55 V Output adjust range See operating information 2. 2. Output voltage tolerance band 1-1% of max I O 2.42 2.58 V Idling voltage I O = A 2.38 2.63 V Line regulation max I O 5 15 mv Load regulation V I =, -1% of max I O 5 15 mv Load transient V I =, Load step 25-5-25 % of voltage deviation max I O, di/dt = 1 A/ s, ±2 mv Load transient recovery time 1 μs Ramp-up time 3 ms (from 1 9 % of V Oi ) 1-1% of max I O Start-up time 2 3 ms (from V I connection to 9% of V Oi ) Vin shutdown fall time max I O N/A ms (from V I off to 1% of V O ) I O = A N/A s RC start-up time max I O 2 3 ms RC shutdown fall time max I O N/A ms (from RC off to 1% of V O ) I O = A N/A s I O Output current 6 A I lim Current limit threshold T ref < max T ref 61 64.5 68 A I sc Short circuit current T ref = 25ºC, see Note 1 75 8 A V Oac OVP Output ripple & noise Over voltage protection Note 1: See Operating Information section. See ripple & noise section, max I O, V Oi 8 15 mvp-p T ref = +25 C, V I =, -1% of max I O 3. 3.3 3.9 V

PRODUCT SPECIFICATION 12 (29) 2/131-BMR632 Technical Uen Specification 15 DC/DC converters, Input 36-, Output 1 A/3 W 2.5 V/6 A Typical Characteristics PKL 4119 APIT Efficiency Power Dissipation [%] 95 9 85 [W] 3 25 2 15 8 1 75 5 7 1 2 3 4 5 6 [A] 1 2 3 4 5 6 [A] Efficiency vs. load current and input voltage at T ref = +25 C Output Current Derating Dissipated power vs. load current and input voltage at T ref = +25 C Thermal Resistance [A] 6 5 4 3 2 1 2 4 6 8 1 [ C] 3. m/s 2.5 m/s 2. m/s 1.5 m/s 1. m/s [ C/W] 5 4 3 2 1..5 1. 1.5 2. 2.5 3.[m/s] Available load current vs. ambient air temperature and airflow at V I =. See Thermal Consideration section. Output Characteristics Thermal resistance vs. airspeed measured at the converter. Tested in wind tunnel with airflow and test conditions as per the Thermal consideration section. Current Limit Characteristics [V] 2.6 2.55 2.5 [V] 3. 2.5 2. 1.5 2.45 1..5 2.4 1 2 3 4 5 6 [A]. 3 4 5 6 7 8 9 [A] Output voltage vs. load current at T ref = +25 C Output voltage vs. load current at I O > max I O, T ref = +25 C

PRODUCT SPECIFICATION 13 (29) 2/131-BMR632 Technical Uen Specification 16 DC/DC converters, Input 36-, Output 1 A/3 W 2.5 V/6 A Typical Characteristics PKL 4119 APIT Start-up Shut-down Start-up enabled by connecting V I at: T ref = +25 C, V I =, I O = 6 A resistive load. Top trace: output voltage (1 V/div.). Bottom trace: input voltage (2 V/div.). Time scale: (2 ms/div.). Shut-down enabled by disconnecting V I at: T ref = +25 C, V I =, I O = 6 A resistive load. Top trace: output voltage (1 V/div.). Bottom trace: input voltage (2 V/div.). Time scale: (.5 ms/div.). Output Ripple & Noise Output Load Transient Response Output voltage ripple at: T ref = +25 C, V I =, I O = 6 A resistive load. Trace: output voltage (2mV/div.). Time scale: (2 μs/div.). Output voltage response to load current stepchange (15-3-15 A) at: Time scale: (.1 ms/div.). Trace: output voltage (1mV/div.). T ref =+25 C, V I =. Output Voltage Adjust (see operating information) Passive adjust The resistor value for an adjusted output voltage is calculated by using the following equations: Output Voltage Adjust Upwards, Increase: R adj = [(Vo(1+ %)/(1.225 %)-(1+2 %)/ %) k Eg Increase 5% =>V out = 2.625 Vdc 2.5(1+5)/(1.225x5)-(1+2x5)/5 = 21 k Output Voltage Adjust Downwards, Decrease: R adj = (1 / %-2) k Eg Decrease 5% =>V out = 2.3dc (1/5-2)= 18 k

PRODUCT SPECIFICATION 14 (29) 2/131-BMR632 Technical Uen Specification 17 DC/DC converters, Input 36-, Output 1 A/3 W 2.5 V/8 A Electrical Specification PKL 4219 APIT T ref = -4 to +1ºC, V I = 36 to, sense pins connected to output pins unless otherwise specified under Conditions. Typical values given at: T ref = +25 C, V I =, max I O, unless otherwise specified under Conditions. Characteristics Conditions min typ max Unit V I Input voltage range 36 V Ioff Turn-off input voltage Decreasing input voltage 3 32.5 35 V V Ion Turn-on input voltage Increasing input voltage 32 34.5 C I Internal input capacitance 2.18 F P O Output power Output voltage initial setting 2 W SVR Supply voltage rejection (ac) f = 1 Hz sinewave, 1 Vp-p 53 db Efficiency 5 % of max I O 88 max I O 83 5 % of max I O, V I = TBD max I O, V I = TBD P d Power Dissipation max I O 41 W P li Input idling power I O = A, V I = 5.1 W P RC Input standby power V I = (turned off with RC).34 W f s Switching frequency -1 % of max I O 18 khz % V Oi V O V tr t tr t r t s t f t RC Output voltage initial setting and accuracy T ref = +25 C, V I =, I O = 8 A 2.45 2.5 2.55 V Output adjust range See operating information 2. 2. Output voltage tolerance band 1-1% of max I O 2.42 2.58 V Idling voltage I O = A 2.38 2.63 V Line regulation max I O 5 15 mv Load regulation V I =, -1% of max I O 5 15 mv Load transient V I =, Load step 25-5-25 % of voltage deviation max I O, di/dt = 1 A/ s, ±2 mv Load transient recovery time 1 μs Ramp-up time TBD ms (from 1 9 % of V Oi ) 1-1% of max I O Start-up time 2 4 ms (from V I connection to 9% of V Oi ) Vin shutdown fall time max I O N/A ms (from V I off to 1% of V O ) I O = A N/A s RC start-up time max I O 2 4 ms RC shutdown fall time max I O N/A ms (from RC off to 1% of V O ) I O = A N/A s I O Output current 8 A I lim Current limit threshold T ref < max T ref 92 97 A I sc Short circuit current T ref = 25ºC, see Note 1 95 98 A V Oac OVP Output ripple & noise Over voltage protection Note 1: See Operating Information section. See ripple & noise section, max I O, V Oi 8 15 mvp-p T ref = +25 C, V I =, -1% of max I O 3. 3.3 3.9 V

PRODUCT SPECIFICATION 15 (29) 2/131-BMR632 Technical Uen Specification 18 DC/DC converters, Input 36-, Output 1 A/3 W 2.5 V/8 A Typical Characteristics PKL 4219 APIT Efficiency Power Dissipation [%] 95 9 85 [W] 5 4 3 8 2 75 1 7 2 4 6 8 [A] 2 4 6 8 [A] Efficiency vs. load current and input voltage at T ref = +25 C Dissipated power vs. load current and input voltage at T ref = +25 C Output Current Derating Thermal Resistance [A] 8 7 6 5 4 3 2 1 2 4 6 8 1 [ C] 3. m/s 2.5 m/s 2. m/s 1.5 m/s 1. m/s [ C/W] 4 3 2 1..5 1. 1.5 2. 2.5 3.[m/s] Available load current vs. ambient air temperature and airflow at V I =. See Thermal Consideration section. Thermal resistance vs. airspeed measured at the converter. Tested in wind tunnel with airflow and test conditions as per the Thermal consideration section. Output Characteristics Current Limit Characteristics [V] 2.6 2.55 [V] 3. 2.5 2. 2.5 1.5 1. 2.45.5 2.4 2 4 6 8 [A]. 4 5 6 7 8 9 1 11 12 [A] Output voltage vs. load current at T ref = +25 C Output voltage vs. load current at I O > max I O, T ref = +25 C

PRODUCT SPECIFICATION 16 (29) 2/131-BMR632 Technical Uen Specification 19 DC/DC converters, Input 36-, Output 1 A/3 W 2.5 V/8 A Typical Characteristics PKL 4219 APIT Start-up Shut-down Start-up enabled by connecting V I at: T ref = +25 C, V I =, I O = 8 A resistive load. Top trace: output voltage (1 V/div.). Bottom trace: input voltage (2 V/div.). Time scale: (2 ms/div.). Shut-down enabled by disconnecting V I at: T ref = +25 C, V I =, I O = 8 A resistive load. Trace: output voltage (1 V/div.). Bottom Trace: input voltage (2 V/div). Time scale: (.1 ms/div.). Output Ripple & Noise Output Load Transient Response Output voltage ripple at: T ref = +25 C, V I =, I O = 8 A resistive load. Trace: output voltage (5mV/div.). Time scale: (2 μs/div.). Output voltage response to load current stepchange (2-4-2 A) at: Time scale: (.1 ms/div.). Trace: output voltage (1mV/div.). T ref =+25 C, V I =. Output Voltage Adjust (see operating information) Passive adjust The resistor value for an adjusted output voltage is calculated by using the following equations: Output Voltage Adjust Upwards, Increase: R adj = [(Vo(1+ %)/(1.225 %)-(1+2 %)/ %) k Eg Increase 5% =>V out = 2.625 Vdc 2.5(1+5)/(1.225x5)-(1+2x5)/5 = 21 k Output Voltage Adjust Downwards, Decrease: R adj = (1 / %-2) k Eg Decrease 5% =>V out = 2.3dc (1/5-2)= 18 k

PRODUCT SPECIFICATION 17 (29) 2/131-BMR632 Technical Uen Specification 2 DC/DC converters, Input 36-, Output 1 A/3 W 3.3 V/5 A Electrical Specification PKL 411 PIT T ref = -4 to +1ºC, V I = 36 to, sense pins connected to output pins unless otherwise specified under Conditions. Typical values given at: T ref = +25 C, V I =, max I O, unless otherwise specified under Conditions. Characteristics Conditions min typ max Unit V I Input voltage range 36 V Ioff Turn-off input voltage Decreasing input voltage 3 32.5 35 V V Ion Turn-on input voltage Increasing input voltage 32 34.5 C I Internal input capacitance 2.18 F P O Output power Output voltage initial setting 165 W SVR Supply voltage rejection (ac) f = 1 Hz sinewave, 1 Vp-p 53 db Efficiency 5 % of max I O 91 max I O 89 5 % of max I O, V I = 91 max I O, V I = 89 P d Power Dissipation max I O 21 W P li Input idling power I O = A, V I = 5.6 W P RC Input standby power V I = (turned off with RC).34 W f s Switching frequency -1 % of max I O 15 khz % V Oi V O V tr t tr t r t s t f t RC Output voltage initial setting and accuracy T ref = +25 C, V I =, I O = 5 A 3.25 3.3 3.35 V Output adjust range See operating information 2.64 3.63 V Output voltage tolerance band 1-1% of max I O 3.2 3.4 V Idling voltage I O = A 3.2 3.4 V Line regulation max I O 5 15 mv Load regulation V I =, -1% of max I O 5 15 mv Load transient V I =, Load step 25-5-25 % of voltage deviation max I O, di/dt = 1 A/ s, ±2 mv Load transient recovery time 1 μs Ramp-up time TBD ms (from 1 9 % of V Oi ) 1-1% of max I O Start-up time 2 3 ms (from V I connection to 9% of V Oi ) Vin shutdown fall time max I O N/A ms (from V I off to 1% of V O ) I O = A N/A s RC start-up time max I O 2 3 ms RC shutdown fall time max I O N/A ms (from RC off to 1% of V O ) I O = A N/A s I O Output current 5 A I lim Current limit threshold T ref < max T ref 51 54.5 58 A I sc Short circuit current T ref = 25ºC, see Note 1 63 65 67 A V Oac OVP Output ripple & noise Over voltage protection Note 1: See Operating Information section. See ripple & noise section, max I O, V Oi 8 15 mvp-p T ref = +25 C, V I =, -1% of max I O 3.9 4.4 5. V

PRODUCT SPECIFICATION 18 (29) 2/131-BMR632 Technical Uen Specification 21 DC/DC converters, Input 36-, Output 1 A/3 W 3.3 V/5 A Typical Characteristics PKL 411 PIT Efficiency Power Dissipation [%] 95 9 85 8 [W] 25 2 15 1 75 5 7 1 2 3 4 5 [A] 1 2 3 4 5 [A] Efficiency vs. load current and input voltage at T ref = +25 C Dissipated power vs. load current and input voltage at T ref = +25 C Output Current Derating Thermal Resistance [A] 5 3. m/s [ C/W] 6 4 3 2.5 m/s 2. m/s 1.5 m/s 4 2 1. m/s 2 1 2 4 6 8 1 [ C].5 m/s Nat. Conv...5 1. 1.5 2. 2.5 3.[m/s] Available load current vs. ambient air temperature and airflow at V I =. See Thermal Consideration section. Thermal resistance vs. airspeed measured at the converter. Tested in wind tunnel with airflow and test conditions as per the Thermal consideration section. Output Characteristics Current Limit Characteristics [V] 3.4 3.35 3.3 [V] 3.5 3. 2.5 2. 1.5 3.25 1..5 3.2 1 2 3 4 5 [A]. 3 4 5 6 7 [A] Output voltage vs. load current at T ref = +25 C Output voltage vs. load current at I O > max I O, T ref = +25 C

PRODUCT SPECIFICATION 19 (29) 2/131-BMR632 Technical Uen Specification 22 DC/DC converters, Input 36-, Output 1 A/3 W 3.3 V/5 A Typical Characteristics PKL 411 PIT Start-up Shut-down Start-up enabled by connecting V I at: T ref = +25 C, V I =, I O = 5 A resistive load. Top trace: output voltage (1 V/div.). Bottom trace: input voltage (2 V/div.). Time scale: (1 ms/div.). Shut-down enabled by disconnecting V I at: T ref = +25 C, V I =, I O = 5 A resistive load. Top trace: output voltage (1 V/div.). Bottom Trace: input voltage (2 V/div). Time scale: (.5 ms/div.). Output Ripple & Noise Output Load Transient Response Output voltage ripple at: T ref = +25 C, V I =, I O = 5 A resistive load. Trace: output voltage (5mV/div.). Time scale: (2 μs/div.). Output voltage response to load current stepchange (12.5-25-12.5 A) at: Time scale: (.1 ms/div.). Trace: output voltage (1mV/div.). T ref =+25 C, V I =. Output Voltage Adjust (see operating information) Passive adjust The resistor value for an adjusted output voltage is calculated by using the following equations: Output Voltage Adjust Upwards, Increase: R adj = [(Vo(1+ %)/(1.225 %)-(1+2 %)/ %) k Eg Increase 5% =>V out = 3.465 Vdc 3.3(1+5)/(1.225x5)-(1+2x5)/5 = 34.6 k Output Voltage Adjust Downwards, Decrease: R adj = (1 / %-2) k Eg Decrease 5% =>V out = 3.135 Vdc (1/5-2)= 18 k

PRODUCT SPECIFICATION 2 (29) 2/131-BMR632 Technical Uen Specification 23 DC/DC converters, Input 36-, Output 1 A/3 W 3.3 V/6 A Electrical Specification PKL 411 APIT T ref = -4 to +1ºC, V I = 36 to, sense pins connected to output pins unless otherwise specified under Conditions. Typical values given at: T ref = +25 C, V I =, max I O, unless otherwise specified under Conditions. Characteristics Conditions min typ max Unit V I Input voltage range 36 V Ioff Turn-off input voltage Decreasing input voltage 3 32.5 35 V V Ion Turn-on input voltage Increasing input voltage 32 34.5 C I Internal input capacitance 2.18 F P O Output power Output voltage initial setting 2 W SVR Supply voltage rejection (ac) f = 1 Hz sinewave, 1 Vp-p 53 db Efficiency 5 % of max I O 92 max I O 91 5 % of max I O, V I = 92 max I O, V I = 91 P d Power Dissipation max I O 21 W P li Input idling power I O = A, V I = 5.7 W P RC Input standby power V I = (turned off with RC).28 W f s Switching frequency -1 % of max I O 15 khz % V Oi V O V tr t tr t r t s t f t RC Output voltage initial setting and accuracy T ref = +25 C, V I =, I O = 6 A 3.25 3.3 3.35 V Output adjust range See operating information 2.64 3.63 V Output voltage tolerance band 1-1% of max I O 3.2 3.4 V Idling voltage I O = A 3.2 3.4 V Line regulation max I O 5 15 mv Load regulation V I =, -1% of max I O 5 15 mv Load transient V I =, Load step 25-5-25 % of voltage deviation max I O, di/dt = 1 A/ s, ±25 mv Load transient recovery time 2 μs Ramp-up time TBD ms (from 1 9 % of V Oi ) 1-1% of max I O Start-up time 2 3 ms (from V I connection to 9% of V Oi ) Vin shutdown fall time max I O N/A ms (from V I off to 1% of V O ) I O = A N/A s RC start-up time max I O 2 3 ms RC shutdown fall time max I O N/A ms (from RC off to 1% of V O ) I O = A N/A s I O Output current 6 A I lim Current limit threshold T ref < max T ref 61 64.8 72 A I sc Short circuit current T ref = 25ºC, see Note 1 76 A V Oac OVP Output ripple & noise Over voltage protection Note 1: See Operating Information section. See ripple & noise section, max I O, V Oi 8 15 mvp-p T ref = +25 C, V I =, -1% of max I O 3.9 4.4 5. V

PRODUCT SPECIFICATION 21 (29) 2/131-BMR632 Technical Uen Specification 24 DC/DC converters, Input 36-, Output 1 A/3 W 3.3 V/6 A Typical Characteristics PKL 411 APIT Efficiency Power Dissipation [%] 95 9 85 8 [W] 3 25 2 15 1 75 5 7 1 2 3 4 5 6 [A] 1 2 3 4 5 6 [A] Efficiency vs. load current and input voltage at T ref = +25 C Dissipated power vs. load current and input voltage at T ref = +25 C Output Current Derating Thermal Resistance [A] 6 5 3. m/s 2.5 m/s [ C/W] 6 4 2. m/s 4 3 2 1 1.5 m/s 1. m/s.5 m/s Nat. Conv. 2 2 4 6 8 1 [ C]..5 1. 1.5 2. 2.5 3.[m/s] Available load current vs. ambient air temperature and airflow at V I =. See Thermal Consideration section. Thermal resistance vs. airspeed measured at the converter. Tested in wind tunnel with airflow and test conditions as per the Thermal consideration section. Output Characteristics Current Limit Characteristics [V] 3.4 3.35 3.3 [V] 3.5 3. 2.5 2. 1.5 3.25 1..5 3.2 1 2 3 4 5 6 [A]. 3 4 5 6 7 8 9 [A] Output voltage vs. load current at T ref = +25 C Output voltage vs. load current at I O > max I O, T ref = +25 C

PRODUCT SPECIFICATION 22 (29) 2/131-BMR632 Technical Uen Specification 25 DC/DC converters, Input 36-, Output 1 A/3 W 3.3 V/6 A Typical Characteristics PKL 411 APIT Start-up Shut-down Start-up enabled by connecting V I at: T ref = +25 C, V I =, I O = 6 A resistive load. Top trace: output voltage (1 V/div.). Bottom trace: input voltage (2 V/div.). Time scale: (1 ms/div.). Shut-down enabled by disconnecting V I at: T ref = +25 C, V I =, I O = 6 A resistive load. Top trace: output voltage (1 V/div.). Bottom Trace: input voltage (2 V/div). Time scale: (2 ms/div.). Output Ripple & Noise Output Load Transient Response Output voltage ripple at: T ref = +25 C, V I =, I O = 6 A resistive load. Trace: output voltage (5mV/div.). Time scale: (2 μs/div.). Output voltage response to load current stepchange (15-3-15 A) at: Time scale: (.1 ms/div.). Trace: output voltage (1mV/div.). T ref =+25 C, V I =. Output Voltage Adjust (see operating information) Passive adjust The resistor value for an adjusted output voltage is calculated by using the following equations: Output Voltage Adjust Upwards, Increase: R adj = [(Vo(1+ %)/(1.225 %)-(1+2 %)/ %) k Eg Increase 5% =>V out = 3.465 Vdc 3.3(1+5)/(1.225x5)-(1+2x5)/5 = 34.6 k Output Voltage Adjust Downwards, Decrease: R adj = (1 / %-2) k Eg Decrease 5% =>V out = 3.135 Vdc (1/5-2)= 18 k

PRODUCT SPECIFICATION 23 (29) 2/131-BMR632 Technical Uen Specification 26 DC/DC converters, Input 36-, Output 1 A/3 W 5 V/6 A Electrical Specification PKL 4311 PIT T ref = -4 to +1ºC, V I = 36 to, sense pins connected to output pins unless otherwise specified under Conditions. Typical values given at: T ref = +25 C, V I =, max I O, unless otherwise specified under Conditions. Characteristics Conditions min typ max Unit V I Input voltage range 36 V Ioff Turn-off input voltage Decreasing input voltage 3 32.5 35 V V Ion Turn-on input voltage Increasing input voltage 32 34.5 C I Internal input capacitance 2.18 F P O Output power Output voltage initial setting 3 W SVR Supply voltage rejection (ac) f = 1 Hz sinewave, 1 Vp-p 53 db Efficiency 5 % of max I O 88 max I O 87 5 % of max I O, V I = TBD max I O, V I = TBD P d Power Dissipation max I O 45 W P li Input idling power I O = A, V I = 5.5 W P RC Input standby power V I = (turned off with RC).28 W f s Switching frequency -1 % of max I O 2 khz % V Oi V O V tr t tr t r t s t f t RC Output voltage initial setting and accuracy T ref = +25 C, V I =, I O = 6 A 4.9 5. 5.1 V Output adjust range See operating information 4. 5.5 V Output voltage tolerance band 1-1% of max I O 4.85 5.15 V Idling voltage I O = A 4.85 5.15 V Line regulation max I O 5 15 mv Load regulation V I =, -1% of max I O 5 15 mv Load transient V I =, Load step 25-5-25 % of voltage deviation max I O, di/dt = 1 A/ s, ±25 mv Load transient recovery time 15 μs Ramp-up time TBD ms (from 1 9 % of V Oi ) 1-1% of max I O Start-up time 15 ms (from V I connection to 9% of V Oi ) Vin shutdown fall time max I O N/A ms (from V I off to 1% of V O ) I O = A N/A s RC start-up time max I O 2 ms RC shutdown fall time max I O N/A ms (from RC off to 1% of V O ) I O = A N/A s I O Output current 6 A I lim Current limit threshold T ref < max T ref 66.5 A I sc Short circuit current T ref = 25ºC, see Note 1 8 A V Oac OVP Output ripple & noise Over voltage protection Note 1: See Operating Information section. See ripple & noise section, max I O, V Oi 1 15 mvp-p T ref = +25 C, V I =, -1% of max I O 5.9 V

PRODUCT SPECIFICATION 24 (29) 2/131-BMR632 Technical Uen Specification 27 DC/DC converters, Input 36-, Output 1 A/3 W 5 V/6 A Typical Characteristics PKL 4311 PIT Efficiency Power Dissipation [%] 95 9 85 8 [W] 6 5 4 3 2 75 1 7 1 2 3 4 5 6 [A] 1 2 3 4 5 6 [A] Efficiency vs. load current and input voltage at T ref = +25 C Dissipated power vs. load current and input voltage at T ref = +25 C Output Current Derating Thermal Resistance [A] 6 5 4 3 2 1 2 4 6 8 1 [ C] 3. m/s 2.5 m/s 2. m/s 1.5 m/s 1. m/s Nat. Conv. [ C/W] 6 4 2..5 1. 1.5 2. 2.5 3.[m/s] Available load current vs. ambient air temperature and airflow at V I =. See Thermal Consideration section. Thermal resistance vs. airspeed measured at the converter. Tested in wind tunnel with airflow and test conditions as per the Thermal consideration section. Output Characteristics Current Limit Characteristics [V] 5.1 5.5 [V] 6. 5. 4. 5. 3. 4.95 2. 1. 4.9 1 2 3 4 5 6 [A]. 2 4 6 8 1 12 [A] Output voltage vs. load current at T ref = +25 C Output voltage vs. load current at I O > max I O, T ref = +25 C

PRODUCT SPECIFICATION 25 (29) 2/131-BMR632 Technical Uen Specification 28 DC/DC converters, Input 36-, Output 1 A/3 W 5 V/6 A Typical Characteristics PKL 4311 PIT Start-up Shut-down Start-up enabled by connecting V I at: T ref = +25 C, V I =, I O = 6 A resistive load. Top trace: output voltage (2 V/div.). Bottom trace: input voltage (2 V/div.). Time scale: (1 ms/div.). Shut-down enabled by disconnecting V I at: T ref = +25 C, V I =, I O = 6 A resistive load. Trace: output voltage (2 V/div.). Time scale: (.2 ms/div.). Output Ripple & Noise Output Load Transient Response Output voltage ripple at: T ref = +25 C, V I =, I O = 6 A resistive load. Trace: output voltage (1mV/div.). Time scale: (2 μs/div.). Output voltage response to load current stepchange (15-3-15 A) at: Time scale: (.1 ms/div.). Trace: output voltage (1mV/div.). T ref =+25 C, V I =. Output Voltage Adjust (see operating information) Passive adjust The resistor value for an adjusted output voltage is calculated by using the following equations: Output Voltage Adjust Upwards, Increase: R adj = [(Vo(1+ %)/(1.225 %)-(1+2 %)/ %) k Eg Increase 5% =>V out = 5.25 Vdc 5(1+5)/(1.225x5)-(1+2x5)/5 = 64 k Output Voltage Adjust Downwards, Decrease: R adj = (1 / %-2) k Eg Decrease 5% =>V out = 4.dc (1/5-2)= 18 k

PRODUCT SPECIFICATION 26 (29) 2/131-BMR632 Technical Uen Specification 29 DC/DC converters, Input 36-, Output 1 A/3 W 12 V/25 A Electrical Specification PKL 4313 PIT T ref = -4 to +1ºC, V I = 36 to, sense pins connected to output pins unless otherwise specified under Conditions. Typical values given at: T ref = +25 C, V I =, max I O, unless otherwise specified under Conditions. Characteristics Conditions min typ max Unit V I Input voltage range 36 V Ioff Turn-off input voltage Decreasing input voltage 3 32.5 35 V V Ion Turn-on input voltage Increasing input voltage 32 34.5 C I Internal input capacitance 2.18 F P O Output power Output voltage initial setting 3 W SVR Supply voltage rejection (ac) f = 1 Hz sinewave, 1 Vp-p 53 db Efficiency 5 % of max I O 92 max I O 92 5 % of max I O, V I = 92 max I O, V I = 92 P d Power Dissipation max I O 28 W P li Input idling power I O = A, V I = 6.7 W P RC Input standby power V I = (turned off with RC).39 W f s Switching frequency -1 % of max I O 2 khz % V Oi V O V tr t tr t r t s t f t RC Output voltage initial setting and accuracy T ref = +25 C, V I =, I O = 25 A 11.8 12 12.2 V Output adjust range See operating information 9.6 13.2 V Output voltage tolerance band 1-1% of max I O 11.64 12. Idling voltage I O = A 11.64 12. Line regulation max I O 12 2 mv Load regulation V I =, -1% of max I O 12 2 mv Load transient V I =, Load step 25-5-25 % of voltage deviation max I O, di/dt = 1 A/ s, ±2 mv Load transient recovery time 2 μs Ramp-up time 15 ms (from 1 9 % of V Oi ) 1-1% of max I O Start-up time 2 3 ms (from V I connection to 9% of V Oi ) Vin shutdown fall time max I O N/A ms (from V I off to 1% of V O ) I O = A N/A s RC start-up time max I O 2 3 ms RC shutdown fall time max I O N/A ms (from RC off to 1% of V O ) I O = A N/A s I O Output current 25 A I lim Current limit threshold T ref < max T ref 27.5 32 A I sc Short circuit current T ref = 25ºC, see Note 1 3 42 A V Oac OVP Output ripple & noise Over voltage protection Note 1: See Operating Information section. See ripple & noise section, max I O, V Oi 8 15 mvp-p T ref = +25 C, V I =, -1% of max I O 14.9 V

PRODUCT SPECIFICATION 27 (29) 2/131-BMR632 Technical Uen Specification 3 DC/DC converters, Input 36-, Output 1 A/3 W 12 V/25 A Typical Characteristics PKL 4313 PIT Efficiency Power Dissipation [%] 95 9 85 8 [W] 35 3 25 2 15 1 75 7 5 1 15 2 25 [A] 5 5 1 15 2 25 [A] Efficiency vs. load current and input voltage at T ref = +25 C Dissipated power vs. load current and input voltage at T ref = +25 C Output Current Derating Thermal Resistance [A] 25 3. m/s [ C/W] 6 2 2.5 m/s 15 2. m/s 1.5 m/s 4 1 5 2 4 6 8 1 [ C] 1. m/s.5 m/s Nat. Conv. 2..5 1. 1.5 2. 2.5 3.[m/s] Available load current vs. ambient air temperature and airflow at V I =. See Thermal Consideration section. Thermal resistance vs. airspeed measured at the converter. Tested in wind tunnel with airflow and test conditions as per the Thermal consideration section. Output Characteristics Current Limit Characteristics [V] 12.2 12.1 12. [V] 12. 1. 8. 6. 11.9 4. 11.8 5 1 15 2 25 [A] 2.. 1 2 3 4 5 6 [A] Output voltage vs. load current at T ref = +25 C Output voltage vs. load current at I O > max I O, T ref = +25 C

PRODUCT SPECIFICATION 28 (29) 2/131-BMR632 Technical Uen Specification 31 DC/DC converters, Input 36-, Output 1 A/3 W 12 V/25 A Typical Characteristics PKL 4313 PIT Start-up Shut-down Start-up enabled by connecting V I at: T ref = +25 C, V I =, I O = 25 A resistive load. Top trace: output voltage (5 V/div.). Bottom trace: input voltage (5 V/div.). Time scale: (5 ms/div.). Shut-down enabled by disconnecting V I at: T ref = +25 C, V I =, I O = 25 A resistive load. Top trace: output voltage (5 V/div.). Bottom Trace: input voltage (2 V/div). Time scale: (.5 ms/div.). Output Ripple & Noise Output Load Transient Response Output voltage ripple at: T ref = +25 C, V I =, I O = 25 A resistive load. Trace: output voltage (2mV/div.). Time scale: (2 μs/div.). Output voltage response to load current stepchange (6.25-12.5-6.25 A) at: Time scale: (.1 ms/div.). Trace: output voltage (1mV/div.). T ref =+25 C, V I =. Output Voltage Adjust (see operating information) Passive adjust The resistor value for an adjusted output voltage is calculated by using the following equations: Output Voltage Adjust Upwards, Increase: R adj = [(Vo(1+ %)/(1.225 %)-(1+2 %)/ %) k Eg Increase 2% =>V out = 12.24 Vdc 12(1+2)/(1.225x2)-(1+2x2)/2 = 447 k Output Voltage Adjust Downwards, Decrease: R adj = (1 / %-2) k Eg Decrease 2% =>V out = 11.76 Vdc (1/2-2)= 48 k

PRODUCT SPECIFICATION 1 (5) 3/131-BMR 632 Technical Uen Specification 32 EZYPING 27-1-11 B DC/DC converters, Input 36-, Output 1 A/3 W EMC Specification Conducted EMI measured according to EN5522, CISPR 22 and FCC part 15J (see test set-up). See Design Note 9 for further information. The fundamental switching frequency is 15 khz for PKL 4118A PIT @ V I =, max I O. Conducted EMI Input terminal value (typ) Test set-up EMI without filter External filter (class B) Required external input filter in order to meet class B in EN 5522, CISPR 22 and FCC part 15J. Filter components: C1,6 = 2x1 F C2,3 = 2x1 F C4,5 = 2x2.2 nf C7 = 22 F (electrolytic) C8,9 = 4.7 nf L1 = 89 H L2 = 5.6 H Layout recommendation The radiated EMI performance of the DC/DC converter will depend on the PCB layout and ground layer design. It is also important to consider the stand-off of the DC/DC converter. If a ground layer is used, it should be connected to the output of the DC/DC converter and the equipment ground or chassis. A ground layer will increase the stray capacitance in the PCB and improve the high frequency EMC performance. Output ripple and noise Output ripple and noise measured according to figure below. See Design Note 22 for detailed information. Output ripple and noise test setup EMI with filter

The products are fitted with a remote control function referenced to the primary negative input connection (- In), with negative and positive logic options available. The RC function allows the converter to be turned on/off by an external device like a semiconductor or mechanical switch. The maximum required sink current is 1 ma. When the RC pin is left open, the voltage generated on the RC pin is 3. 6.5 V. The second option is positive logic remote control, which can be ordered by adding the suffix P to the end of the part number. The converter will turn on when the input voltage is applied with the RC pin open. Turn off is achieved by connecting the RC pin to the - In. To ensure safe turn off the voltage difference between RC pin and the - In pin shall be less than 1V. The converter will restart automatically when this connection is opened. See Design Note 21 for detailed information. Input and Output Impedance The impedance of both the input source and the load will interact with the impedance of the DC/DC converter. It is important that the input source has low characteristic impedance. The converters are designed for stable operation without external capacitors connected to the input or output. The performance in some applications can be enhanced by addition of external capacitance as described under External Decoupling Capacitors. If the input voltage source contains significant inductance, the addition of a 1 μf capacitor across the input of the converter will ensure stable operation. The capacitor is not required when powering the DC/DC converter from an input source with an inductance below 1 μh. External Decoupling Capacitors PRODUCT SPECIFICATION 2 (5) 3/131-BMR 632 Technical Uen Specification 33 EZYPING 27-1-11 B DC/DC converters, Input 36-, Output 1 A/3 W Operating information When powering loads with significant dynamic current requirements, the voltage regulation at the point of load can Input Voltage The input voltage range 36 to 75Vdc meets the requirements of the European Telecom Standard ETS 3 132-2 for normal input voltage range in 48 and 6 Vdc systems, -4.5 to - 57. V and 5. to -72 V respectively. At input voltages exceeding, the power loss will be higher than at normal input voltage and T ref must be limited to absolute max +1 C. The absolute maximum continuous input voltage is 8 Vdc. be improved by addition of decoupling capacitors at the load. The most effective technique is to locate low ESR ceramic and electrolytic capacitors as close to the load as possible, using several parallel capacitors to lower the effective ESR. The ceramic capacitors will handle high-frequency dynamic load changes while the electrolytic capacitors are used to handle low frequency dynamic load changes. Ceramic capacitors will also reduce any high frequency noise at the load. It is equally important to use low resistance and low inductance PCB layouts and cabling. Turn-off Input Voltage External decoupling capacitors will become part of the control loop of the DC/DC converter and may affect the The DC/DC converters monitor the input voltage and will turn stability margins. As a rule of thumb, 1 μf/a of output on and turn off at predetermined levels. current can be added without any additional analysis. The The minimum hysteresis between turn on and turn off input ESR of the capacitors is a very important parameter. Power voltage is 1V. Modules guarantee stable operation with a verified ESR value Remote Control (RC) of >1 m across the output connections. For further information please contact your local Ericsson Power Modules representative. Output Voltage Adjust (V adj ) The DC/DC converters have an Output Voltage Adjust pin (V adj ). This pin can be used to adjust the output voltage above or below Output voltage initial setting. When increasing the output voltage, the voltage at the output pins (including any remote sense compensation ) must be kept below the threshold of the over voltage protection, (OVP) to prevent the converter from shutting down. At increased output voltages the maximum power rating of the converter remains the same, and the max output current must be decreased correspondingly. To increase the voltage the resistor should be connected between the V adj pin and +Sense pin. The resistor value of the Output voltage adjust function is according to information given under the Output section for the respective product. To decrease the output voltage, the resistor should be connected between the V adj pin and Sense pin.

Parallel Operation Two converters may be paralleled for redundancy if the total power is equal or less than P O max. It is not recommended to parallel the converters without using external current sharing circuits. PRODUCT SPECIFICATION 3 (5) 3/131-BMR 632 Technical Uen Specification 34 EZYPING 27-1-11 B DC/DC converters, Input 36-, Output 1 A/3 W Operating information continued The Output Current Derating graph found in the Output section for each model provides the available output current vs. ambient air temperature and air velocity at V in =. The DC/DC converter is tested on a 254 x 254 mm, 35 μm (1 oz), 16-layer test board mounted vertically in a wind tunnel with a cross-section of 35 x 35 mm. See Design Note 6 for detailed information. Remote Sense The DC/DC converters have remote sense that can be used to compensate for voltage drops between the output and the point of load. The sense traces should be located close to the PCB ground layer to reduce noise susceptibility. The remote sense circuitry will compensate for up to 1% voltage drop between output pins and the point of load. If the remote sense is not needed +Sense should be connected to +Out and -Sense should be connected to -Out. Over Temperature Protection (OTP) The converters are protected from thermal overload by an internal over temperature shutdown circuit. When the baseplate or case temperature exceeds 11 C the converter will shut down immediately(latching). The converter can be restarted by cycling the input voltage or using the remote control function. Proper cooling of the DC/DC converter can be verified by measuring the temperature at positions P1. The temperature at these positions should not exceed the max values provided in the table below. Note that the max value is the absolute maximum rating (non destruction) and that the electrical Output data is guaranteed up to T ref +1 C. See Design Note 19 for further information. Position Device Designation max value P 1 Baseplate T ref 1º C Over Voltage Protection (OVP) The converters have output over voltage protection that will shut down the converter in over voltage conditions. The converter can be restarted by cycling the input voltage or using the remote control function. Over Current Protection (OCP) The converters include current limiting circuitry for protection at continuous overload. The output voltage will decrease towards zero for output currents in excess of max output current (max I O ). The converter will resume normal operation after removal of the overload. The load distribution should be designed for the maximum output short circuit current specified. Thermal Consideration General The converters are designed to operate in different thermal environments and sufficient cooling must be provided to ensure reliable operation. Cooling is achieved mainly by conduction, from the pins to the host board, and convection, which is dependant on the airflow across the converter. Increased airflow enhances the cooling of the converter.

PRODUCT SPECIFICATION 4 (5) 3/131-BMR 632 Technical Uen Specification 35 EZYPING 27-1-11 B DC/DC converters, Input 36-, Output 1 A/3 W Thermal Consideration continued Connections Definition of reference temperature (T ref ) The reference temperature is used to monitor the temperature limits of the product. Temperatures above maximum T ref are not allowed and may cause degradation or permanent damage to the product. T ref is also used to define the temperature range for normal operating conditions. T ref is defined by the design and used to guarantee safety margins, proper operation and high reliability of the module. Ambient Temperature Calculation By using the thermal resistance the maximum allowed ambient temperature can be calculated. 1. The power loss is calculated by using the formula ((1/ ) - 1) output power = power losses (Pd). = efficiency of converter. E.g 89.5 % =.895 2. Find the thermal resistance (Rth) in the Thermal Resistance graph found in the Output section for each model. Calculate the temperature increase ( T). T = Rth x Pd 3. Max allowed ambient temperature is: Max Tref - T. E.g PKL4118B PIT at 2m/s: 1. (( 1 ) - 1) 144 W = 25. W.852 2. 25. W 1.3 C/W = 32.5 C Pin Designation Function 1 +In Positive Input 2 RC Remote Control 3 Case Connected to baseplate 4 -In Negative Input 5,1 -Out Negative Output 6 -Sen Negative Sense 7 Vadj Output voltage adjust 8 +Sen Positive Sense 9,11 +Out Positive Output 3. 11 C 32.5 C = max ambient temperature is 77.5 C The actual temperature will be dependent on several factors such as the PCB size, number of layers and direction of airflow.

Limited Internal PRODUCT SPECIFICATION 1 (4) EPANHON 4/131-BMR 632 Technical Specification 36 SEC/D PKL 4 (Linda PI zhong) series (MICKAOV) 26-1-26 B DC/DC converters, Input 36-, Output 1 A/3 W Mechanical information

Limited Internal PRODUCT SPECIFICATION 2 (4) EPANHON 4/131-BMR 632 Technical Specification 37 SEC/D PKL 4 (Linda PI zhong) series (MICKAOV) 26-1-26 B DC/DC converters, Input 36-, Output 1 A/3 W Soldering Information Through hole mounting The PKL series DC/DC converters are intended for through hole mounting in a PCB. When wave soldering is used max temperature on the pins is specified to 26 C for 1 seconds. Maximum preheat rate of 4 C/s and temperature of max 15 C is suggested. When hand soldering, care should be taken to avoid direct contact between the hot soldering iron tip and the pins for more than a few seconds in order to prevent overheating. No-clean flux is recommended to avoid entrapment of cleaning fluids in cavities inside of the DC/DC power module. The residues may affect long time reliability and isolation voltage. Delivery package information The products are delivered antistatic clamshells. Tray properties Material Surface resistance Bake ability Clamshell capacity Box capacity PET 1E5 to 1E12 ohms/square The clamshells can not be baked 1 converters/clamshell 5 converters (5 full clamshells/box)

Limited Internal PRODUCT SPECIFICATION 3 (4) EPANHON 4/131-BMR 632 Technical Specification 38 SEC/D PKL 4 (Linda PI zhong) series (MICKAOV) 26-1-26 B DC/DC converters, Input 36-, Output 1 A/3 W Product Qualification Specification Characteristics External visual inspection IPC-A-61D Change of temperature IEC 668-2-14 N a Temperature range Duration Cycle Cold IEC 668-2-1 A d Temperature range Duration Input Voltage Load Damp heat IEC 668-2-3 C a Temperature Humidity Input Voltage Duration Dry heat IEC 668-2-2 B a Time Temperature Immersion in cleaning solvents IEC 668-2-45 XA Method 2 Water Glycol ether Isopropyl alcohol Mechanical shock IEC 668-2-27 E a Peak acceleration Duration Operational life test MIL-STD-22G Case temperature Method 18A Ambient temperature Input Voltage Load Resistance to soldering heat (not in operation, without board) Robustness of terminations Solder ability (Precondition 85 C/85%RH; 24h) IEC 668-2-2 T b Method 1A IEC 668-2-21 U a IEC 668-2-2 T a Duration Solder Temperature Duration SnPb Eutectic Pb Free Vibration, broad-band random IEC 668-2-34 E d Frequency Acceleration Duration in each direction Sinusoidal IEC 668-2-6 F c Frequency Amplitude Acceleration of cycles -4 C-+1 C.5 h 3-4 C-+125 C 72 h Minimum No +85 C 85 % RH Maximum 1 hours 1 hours 125 C +55 ±5 C +35 ±5 C +35 ±5 C 1 g 6 ms 1 C 9 C Minimum Normal ON 9min; OFF 3min 1h 26 C 1-13 s 235±5 C 27±5 C 15 Hz.25 g 2 /Hz 1 min 1-5 Hz.75 mm 1 g 1 in each axis