HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR. Features

General Description The series are positive voltage regulator ICs fabricated by CMOS process. Each of these ICs consists of a voltage reference, an error amplifier, a resistor network for setting output voltage, a current limit circuit for current protection and a chip-enable circuit (5-pin products only). The series feature high supply voltage ripple rejection, low dropout voltage, low noise, high output voltage accuracy, and low current consumption which make them ideal for use in various battery-powered devices. The series have 1.2, 1.3, 1.5, 1.8, 2.5, 2.8, 2.85, 3.0, 3.2 and 3.3 versions. The are available in standard SOT-23-3, SOT- 23-5 and CSP-4 packages. Features Low Dropout oltage at I OUT =100mA: 150m Typical (Except 1.2, 1.3 and 1.5 ersions) Low Standby Current: 0.1μA Typical Low Quiescent Current: 25μA Typical High Ripple Rejection: 70dB Typical (f=1khz) Output Current: More Than 200mA (300mA Limit) Extremely Low Noise: 30μrms (10Hz to 100kHz) Excellent Line Regulation: 4m Typical Excellent Load Regulation: 12m Typical High Output oltage Accuracy: ±2% Excellent Line Transient Response and Load Transient Response Compatible with Low ESR Ceramic Capacitor (as Low as 1μF) Applications Mobile Phones, Cordless Phones Wireless Communication Equipment Portable Games Cameras, ideo Recorders Sub-board Power Supplies for Telecom Equipment Battery Powered Equipment SOT-23-3 SOT-23-5 CSP-4 Figure 1. Package Types of 1

Pin Configuration N Package (SOT-23-3) K Package (SOT-23-5) 3 1 5 OUT GND 2 1 2 CE 3 4 NC GND OUT J4/J4A Package (CSP-4 (P 0.5)/CSP-4 (P 0.4)) J4C/J4B Package (CSP-4 (P 0.5)/CSP-4 (P 0.4)) Pin 1 Mark CE Pin 1 Mark OUT A1 A2 A1 A2 B1 B2 B1 B2 GND OUT CE GND Pin Description Figure 2. Pin Configuration of (Top iew) Pin Number SOT-23-3 SOT-23-5 CSP-4 (J4/J4A) CSP-4 (J4C/J4B) Pin Name Function 3 1 A2 A1 Input voltage 1 2 B1 B2 GND Ground 3 A1 B1 CE Active high enable input pin. Logic high=enable, logic low=shutdown 4 NC No connection 2 5 B2 A2 OUT Regulated output voltage 2

Functional Block Diagram 3 2 OUT 1/A2/A1 5/B2/A2 OUT REF REF CURRENT LIMIT CURRENT LIMIT 1 GND CE 3/A1/B1 2/B1/B2 GND SOT-23-3 SOT-23-5/CSP-4(J4/J4A)/CSP-4(J4C/J4B) Figure 3. Functional Block Diagram of 3

Ordering Information - Circuit Type A: Active High (Pull-down resistor built-in) Blank: No Enable Function Package N: SOT-23-3 K: SOT-23-5 J4: CSP-4(P 0.5) J4A: CSP-4 (P 0.4) J4C: CSP-4(P 0.5) J4B: CSP-4 (P 0.4) E1: Lead Free G1: Green TR: Tape and Reel 1.2: Fixed Output 1.2 1.3: Fixed Output 1.3 1.5: Fixed Output 1.5 1.8: Fixed Output 1.8 2.5: Fixed Output 2.5 2.8: Fixed Output 2.8 2.85: Fixed Output 2.85 3.0: Fixed Output 3.0 3.2: Fixed Output 3.2 3.3: Fixed Output 3.3 Package Temperature Range Condition Part Number Marking ID Packing Type Lead Free Green Lead Free Green N-1.2TRE1 N-1.2TRG1 EF9 GF9 N-1.3TRE1 N-1.3TRG1 EG9 GG9 N-1.5TRE1 N-1.5TRG1 EF1 GF1 N-1.8TRE1 N-1.8TRG1 EF3 GF3 SOT-23-3 -40 to 85 o C N-2.5TRE1 N-2.5TRG1 EF4 GF4 N-2.8TRE1 N-2.8TRG1 EF5 GF5 N-3.0TRE1 N-3.0TRG1 EF6 GF6 N-3.2TRE1 N-3.2TRG1 EF7 GF7 N-3.3TRE1 N-3.3TRG1 EF8 GF8 SOT-23-5 -40 to 85 o C Active High (Pull-down resistor built-in) AK-1.2TRE1 AK-1.2TRG1 E1T G1T Active High (Pull-down resistor built-in) AK-1.3TRE1 AK-1.3TRG1 E1R G1R Active High (Pull-down resistor built-in) AK-1.5TRE1 AK-1.5TRG1 E1Z G1Z Active High (Pull-down resistor built-in) AK-1.8TRE1 AK-1.8TRG1 E1U G1U Active High (Pull-down resistor built-in) AK-2.5TRE1 AK-2.5TRG1 E1 G1 Active High (Pull-down resistor built-in) AK-2.8TRE1 AK-2.8TRG1 E1W G1W Active High (Pull-down resistor built-in) AK-3.0TRE1 AK-3.0TRG1 E1X G1X Active High (Pull-down resistor built-in) AK-3.2TRE1 AK-3.2TRG1 E3Z G3Z Active High (Pull-down resistor built-in) AK-3.3TRE1 AK-3.3TRG1 E1Y G1Y 4

Ordering Information (Continued) Package Temperature Range Condition Part Number Marking ID Packing Type Lead Free Green Lead Free Green CSP-4 CSP-4-40 to 85 o C -40 to 85 o C AJ4A- 1.2TRG1 AJ4A- 1.3TRG1 AJ4A- 1.5TRG1 AJ4A- 1.8TRG1 AJ4A- 2.5TRG1 AJ4A- 2.8TRG1 AJ4A- 2.85TRG1 AJ4A- 3.0TRG1 AJ4A- 3.2TRG1 AJ4A- 3.3TRG1 AJ4-1.2TRG1 AJ4-1.3TRG1 AJ4-1.5TRG1 AJ4-1.8TRG1 AJ4-2.5TRG1 AJ4-2.8TRG1 AJ4-2.85TRG1 AJ4-3.0TRG1 AJ4-3.2TRG1 AJ4-3.3TRG1 CB CC CD CE CF CG DD CH DA DB BA BB BC BD BE BF DC BG BH CA 5

Ordering Information (Continued) Package Temperature Range Condition Part Number Marking ID Packing Type Lead Free Green Lead Free Green CSP-4 CSP-4-40 to 85 o C -40 to 85 o C AJ4B- 1.2TRG1 AJ4B- 1.3TRG1 AJ4B- 1.5TRG1 AJ4B- 1.8TRG1 AJ4B- 2.5TRG1 AJ4B- 2.8TRG1 AJ4B- 2.85TRG1 AJ4B- 3.0TRG1 AJ4B- 3.2TRG1 AJ4B- 3.3TRG1 AJ4C- 1.2TRG1 AJ4C- 1.3TRG1 AJ4C- 1.5TRG1 AJ4C- 1.8TRG1 AJ4C- 2.5TRG1 AJ4C- 2.8TRG1 AJ4C- 2.85TRG1 AJ4C- 3.0TRG1 AJ4C- 3.2TRG1 AJ4C- 3.3TRG1 DE DF DG DH EA EB EC ED EE EF EG EH FA FB FC FD FE FF FG FH BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with "G1" suffix are available in green packages. 6

Absolute Maximum Ratings (Note 1) Parameter Symbol alue Unit Input oltage 6.5 Enable Input oltage CE -0.3 to +0.3 Output Current I OUT 300 ma Junction Temperature T J 150 o C Storage Temperature Range T STG -65 to 150 o C Lead Temperature (Soldering, 10sec) T LEAD 260 o C Thermal Resistance (Junction to Ambient) (Note 2) θ JA SOT-23-3 250 SOT-23-5 250 o C/W CSP-4 126 ESD (Human Body Model) ESD 2000 ESD (Machine Model) ESD 200 Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability. Note 2: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction temperature, T J(max), the junction-to-ambient thermal resistance, θ JA, and the ambient temperature, T A. The maximum allowable power dissipation at any ambient temperature is calculated using: P D(max) =(T J(max) - T A )/θ JA. Exceeding the maximum allowable power dissipation will result in excessive die temperature. Recommended Operating Conditions Parameter Symbol Min Max Unit Input oltage 2 6 Operating Ambient Temperature Range T A -40 85 o C 7

Electrical Characteristics -1.2 Electrical Characteristics ( =2.2, T J =25 o C, C IN =1μF, C OUT =1μF, Bold typeface applies over -40 o C T J 85 o C, unless otherwise specified.) Parameter Symbol Conditions Min Typ Max Unit Output oltage =2.2 OUT 1mA I OUT 30mA 1.176 1.2 1.224 Input oltage 6 Output Current I OUT - OUT =1 200 ma Load Regulation =2.2 RLOAD 1mA I OUT 80mA 12 40 m 2.2 Line Regulation 6 RLINE 4 16 m I OUT =10mA 700 900 Dropout oltage DROP I OUT =100mA 700 900 I OUT =150mA 700 900 m I OUT =200mA 700 900 Quiescent Current I Q =2.2, I OUT =0mA 25 50 μa Standby Current I STD =2.2 CE in OFF mode 0.1 1 μa Power Supply Rejection Ratio PSRR Ripple 0.5p-p, f=1khz =2.2 70 db Output oltage Temperature Coefficient Δ OUT /ΔT ±120 μ/ o C (Δ OUT / OUT )/ΔT ±100 ppm/ o C Short Current Limit I LIMIT OUT =0 50 ma RMS Output Noise NOISE T A =25 o C 10Hz f 100kHz 30 μrms CE "High" oltage CE input voltage "High" 1.5 CE "Low" oltage CE input voltage "Low" 0.25 CE Pull-down Resistance R PD 2.5 5 10 MΩ Thermal Resistance (Junction to Case) θ JC SOT-23-5 74 SOT-23-3 74 CSP-4 5 o C/W 8

Electrical Characteristics (Continued) -1.3 Electrical Characteristics ( =2.3, T J =25 o C, C IN =1μF, C OUT =1μF, Bold typeface applies over -40 o C T J 85 o C, unless otherwise specified.) Parameter Symbol Conditions Min Typ Max Unit Output oltage =2.3 OUT 1mA I OUT 30mA 1.274 1.3 1.326 Input oltage 6 Output Current I OUT - OUT =1 200 ma Load Regulation =2.3 RLOAD 1mA I OUT 80mA 12 40 m 2.3 Line Regulation 6 RLINE 4 16 m I OUT =10mA 600 800 Dropout oltage DROP I OUT =100mA 600 800 I OUT =150mA 600 800 m I OUT =200mA 600 800 Quiescent Current I Q =2.3, I OUT =0mA 25 50 μa Standby Current I STD =2.3 CE in OFF mode 0.1 1 μa Power Supply Rejection Ratio PSRR Ripple 0.5p-p, f=1khz =2.3 70 db Output oltage Temperature Coefficient Δ OUT /ΔT ±130 μ/ o C (Δ OUT / OUT )/ΔT ±100 ppm/ o C Short Current Limit I LIMIT OUT =0 50 ma RMS Output Noise NOISE T A =25 o C 10Hz f 100kHz 30 μrms CE "High" oltage CE input voltage "High" 1.5 CE "Low" oltage CE input voltage "Low" 0.25 CE Pull-down Resistance R PD 2.5 5 10 MΩ Thermal Resistance (Junction to Case) θ JC SOT-23-5 74 SOT-23-3 74 CSP-4 5 o C/W 9

Electrical Characteristics (Continued) -2.5 Electrical Characteristics ( =3.5, T J =25 o C, C IN =1μF, C OUT =1μF, Bold typeface applies over -40 o C T J 85 o C, unless otherwise specified.) Parameter Symbol Conditions Min Typ Max Unit Output oltage =3.5 OUT 1mA I OUT 30mA 2.45 2.5 2.55 Input oltage 6 Output Current I OUT - OUT =1 200 ma Load Regulation =3.5 RLOAD 1mA I OUT 80mA 12 40 m 3 Line Regulation 6 RLINE 4 16 m I OUT =10mA 20 40 Dropout oltage DROP I OUT =100mA 150 300 I OUT =150mA 200 400 m I OUT =200mA 250 500 Quiescent Current I Q =3.5, I OUT =0mA 25 50 μa Standby Current I STD =3.5 CE in OFF mode 0.1 1 μa Power Supply Rejection Ratio PSRR Ripple 0.5p-p, f=1khz =3.5 70 db Output oltage Temperature Coefficient Δ OUT /ΔT ±250 μ/ o C (Δ OUT / OUT )/ΔT ±100 ppm/ o C Short Current Limit I LIMIT OUT =0 50 ma RMS Output Noise NOISE T A =25 o C 10Hz f 100kHz 30 μrms CE "High" oltage CE input voltage "High" 1.5 CE "Low" oltage CE input voltage "Low" 0.25 CE Pull-down Resistance R PD 2.5 5 10 MΩ Thermal Resistance (Junction to Case) θ JC SOT-23-5 74 SOT-23-3 74 CSP-4 5 o C/W 12

Electrical Characteristics (Continued) -2.85 Electrical Characteristics ( =3.85, T J =25 o C, C IN =1μF, C OUT =1μF, Bold typeface applies over -40 o C T J 85 o C, unless otherwise specified.) Parameter Symbol Conditions Min Typ Max Unit Output oltage =3.85 OUT 1mA I OUT 30mA 2.793 2.85 2.907 Input oltage 6 Output Current I OUT - OUT =1 200 ma Load Regulation =3.85 RLOAD 1mA I OUT 80mA 12 40 m 3.3 Line Regulation 6 RLINE 4 16 m I OUT =10mA 20 40 Dropout oltage DROP I OUT =100mA 150 300 I OUT =150mA 200 400 m I OUT =200mA 250 500 Quiescent Current I Q =3.85, I OUT =0mA 25 50 μa Standby Current I STD =3.85 CE in OFF mode 0.1 1 μa Power Supply Rejection Ratio PSRR Ripple 0.5p-p, f=1khz =3.85 70 db Output oltage Temperature Coefficient Δ OUT /ΔT ±280 μ/ o C (Δ OUT / OUT )/ΔT ±100 ppm/ o C Short Current Limit I LIMIT OUT =0 50 ma RMS Output Noise NOISE T A =25 o C 10Hz f 100kHz 30 μrms CE "High" oltage CE input voltage "High" 1.5 CE "Low" oltage CE input voltage "Low" 0.25 CE Pull-down Resistance R PD 2.5 5 10 MΩ Thermal Resistance (Junction to Case) θ JC CSP-4 5 o C/W 14

Electrical Characteristics (Continued) -3.0 Electrical Characteristics ( =4, T J =25 o C, C IN =1μF, C OUT =1μF, Bold typeface applies over -40 o C T J 85 o C, unless otherwise specified.) Parameter Symbol Conditions Min Typ Max Unit Output oltage =4 OUT 2.94 3.0 3.06 1mA I OUT 30mA Input oltage 6 Output Current I OUT - OUT =1 200 ma Load Regulation =4 RLOAD 12 40 m 1mA I OUT 80mA Line Regulation RLINE 3.5 6 4 16 m I OUT =10mA 20 40 Dropout oltage DROP I OUT =100mA 150 300 I OUT =150mA 200 400 m I OUT =200mA 250 500 Quiescent Current I Q =4, I OUT =0mA 25 50 μa Standby Current I STD =4 CE in OFF mode 0.1 1 μa Power Supply Rejection Ratio PSRR Ripple 0.5p-p, f=1khz =4 70 db Output oltage Temperature Coefficient Δ OUT /ΔT ±300 μ/ o C (Δ OUT / OUT )/ΔT ±100 ppm/ o C Short Current Limit I LIMIT OUT =0 50 ma RMS Output Noise NOISE T A =25 o C 10Hz f 100kHz 30 μrms CE "High" oltage CE input voltage "High" 1.5 CE "Low" oltage CE input voltage "Low" 0.25 CE Pull-down Resistance R PD 2.5 5 10 MΩ Thermal Resistance (Junction to Case) θ JC SOT-23-5 74 SOT-23-3 74 CSP-4 5 o C/W 15

Typical Performance Characteristics 1.4 1.8 1.2 1.6 1.4 Output oltage () 1.0 0.8 0.6 0.4 0.2-1.2 =2 =2.5 =3 Output oltage () 1.2 1.0 0.8 0.6 0.4 0.2-1.5 = 2 = 2.5 = 4 0.0 0 50 100 150 200 250 300 350 0.0 0 50 100 150 200 250 300 350 400 Output Current (ma) Output Current (ma) Figure 4. Output oltage vs. Output Current Figure 5. Output oltage vs. Output Current 2.0 2.8 1.8 2.4 1.6 1.4 2.0 Output oltage () 1.2 1.0 0.8 0.6 0.4-1.8 = 2.2 0.2 IN = 2.8 = 4 0.0 0 50 100 150 200 250 300 350 Output oltage () 1.6 1.2 0.8 0.4-2.5 = 2.8 = 3.5 = 5 0.0 0 50 100 150 200 250 300 350 Output Current (ma) Output Current (ma) Figure 6. Output oltage vs. Output Current Figure 7. Output oltage vs. Output Current 18

Typical Performance Characteristics (Continued) 3.5 1.4 3.0 1.2 Output oltage () 2.5 2.0 1.5 1.0 0.5-3.0 =3.3 =4 =6 Output oltage () 1.0 0.8 0.6 0.4 0.2-1.2 I OUT =30mA 0.0 0 50 100 150 200 250 300 350 Output Current (ma) 0.0 0 1 2 3 4 5 6 7 Input oltage () Figure 8. Output oltage vs. Output Current Figure 9. Output oltage vs. Input oltage 3.50 0.6 3.25 0.5 Output oltage () 3.00 2.75 2.50 Dropout oltage () 0.4 0.3 0.2 Minimum Operating Requirement 2.25-3.0 I OUT =30mA 0.1-1.2 2.00 0 1 2 3 4 5 6 7 Input oltage () 0.0 0 40 80 120 160 200 Output Current (ma) Figure 10. Output oltage vs. Input oltage Figure 11. Dropout oltage vs. Output Current 19

Typical Performance Characteristics (Continued) 0.6 1.210 1.208 0.5 1.206 Dropout oltage () 0.4 0.3 0.2 0.1-3.0 Output oltage () 1.204 1.202 1.200 1.198 1.196 1.194 1.192-1.2 =2.2 I OUT =30mA 0.0 0 40 80 120 160 200 Output Current (ma) 1.190-25 0 25 50 75 100 125 Junction Temperature ( o C) Figure 12. Dropout oltage vs. Output Current Figure 13. Output oltage vs. Junction Temperature 3.10 3.08 3.06 30 25 Output oltage () 3.04 3.02 3.00 2.98 2.96 2.94 2.92-3.0 =4 I OUT =30mA Supply Current (μa) 20 15 10 5-1.2 I OUT =0mA 2.90-25 0 25 50 75 100 125 Junction Temperature ( o C) 0 0 1 2 3 4 5 6 7 Input oltage () Figure 14. Output oltage vs. Junction Temperature Figure 15. Supply Current vs. Input oltage 20

Typical Performance Characteristics (Continued) 60 40 50 35 30 Supply Current (μa) 40 30 20 10-3.0 I OUT =0mA Supply Current (μa) 25 20 15 10 5-1.2 =2.2 I OUT =0mA 0 0 1 2 3 4 5 6 7 Input oltage () 0-25 0 25 50 75 100 125 Junction Temperature ( o C) Figure 16. Supply Current vs. Input oltage Figure 17. Supply Current vs. Junction Temperature 40 Supply Current (μa) 35 30 25 20 15 10 5 0-3.0 =4 I OUT =0mA -25 0 25 50 75 100 125 Δ OUT (0.05/Div) (1/Div) 4.2 3.2 2.2 0.05 0-0.05-1.2 Junction Temperature ( o C) Time (100μs/Div) Figure 18. Supply Current vs. Junction Temperature Figure 19. Line Transient (Conditions:, C IN =1μF, C OUT =1μF) 21

Typical Performance Characteristics (Continued) Δ OUT (0.05/Div) (1/Div) 5 4 0.05 0-0.05 6-3.0 1.3 OUT (0.1/Div) I OUT (100mA/Div) 1.2 1.1 200 100 0-1.2 Time (20μs/Div) Time (200μs/Div) Figure 20. Line Transient (Conditions:, C IN =1μF, C OUT =1μF) Figure 21. Load Transient (Conditions: =2.2, C IN =1μF, C OUT =1μF) 100 OUT (0.1/Div) I OUT (100mA/Div) 3.1 3.0 2.9 200 100 0-3.0 PSRR (db) 90 80 70 60 50 40 30 20 10-1.2 =2.2 I OUT =30mA C IN =C OUT =1μF 0 10 100 1k 10k 100k Time (200μs/Div) Frequency (Hz) Figure 22. Load Transient (Conditions: =4, C IN =1μF, C OUT =1μF) Figure 23. PSRR vs. Frequency 22

Typical Performance Characteristics (Continued) 100 90 80 70-3.0 =4 I OUT =30mA C IN =C OUT =1μF PSRR (db) 60 50 40 30 20 10 0 10 100 1k 10k 100k Frequency (Hz) Figure 24. PSRR vs. Frequency 23

Typical Application =2.2-1.2 OUT =1.2 OUT OUT GND C OUT 1μF C IN 1μF =4-3.0 OUT =3 OUT OUT GND CE NC C OUT 1μF C IN 1μF Note: Filter capacitors are required at the 's input and output. 1μF capacitor is required at the input. The minimum output capacitance required for stability should be more than 1μF with ESR from 0.01Ω to 100Ω. Ceramic capacitors are recommended. Figure 25. Typical Application of 24

Mechanical Dimensions SOT-23-3 Unit: mm(inch) 2.820(0.111) 3.020(0.119) 0.100(0.004) 0.200(0.008) 2.650(0.104) 2.950(0.116) 1.500(0.059) 1.700(0.067) 0.300(0.012) 0.600(0.024) 0.200(0.008) 0.950(0.037) TYP 1.800(0.071) 2.000(0.079) 0.300(0.012) 0.500(0.020) 0 8 1.450(0.057) MAX. 0.000(0.000) 0.150(0.006) 0.900(0.035) 1.300(0.051) 25

Mechanical Dimensions (Continued) SOT-23-5 Unit: mm(inch) 2.820(0.111) 3.020(0.119) 0.100(0.004) 0.200(0.008) 2.650(0.104) 2.950(0.116) 1.500(0.059) 1.700(0.067) 0.300(0.012) 0.600(0.024) 0.200(0.008) 0.700(0.028) REF 0.950(0.037) TYP 1.800(0.071) 2.000(0.079) 0.300(0.012) 0.400(0.016) 0 8 1.450(0.057) MAX 0.000(0.000) 0.150(0.006) 0.900(0.035) 1.300(0.051) 26

Mechanical Dimensions (Continued) CSP-4 (P 0.4) Unit: mm(inch) 0.960(0.038) 1.060(0.042) 0.400(0.016) TYP. 0.940(0.037) 1.040(0.041) 0.400(0.016) TYP. 2 1 Pin 1 Mark B A Φ0.270(0.011) TYP. 0.550(0.022) 0.650(0.026) 0.180(0.007) 0.220(0.009) 27

Mechanical Dimensions (Continued) CSP-4 (P 0.5) Unit: mm(inch) 0.960(0.038) 1.060(0.042) 0.500(0.020) TYP. 2 0.940(0.037) 1.040(0.041) 0.500(0.020) TYP. 1 Pin 1 Mark B A Φ0.320(0. 013) TYP. 0.600(0.024) 0.700(0.028) 0.215(0.008) 0.255(0.010) 28

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