L7800 SERIES POSITIVE VOLTAGE REGULATORS

Transcription

1 SERIES POSITIVE VOLTAGE REGULATORS OUTPUT CURRENT UP TO 1.5 A OUTPUT VOLTAGES OF 5; 5.2; 6; 8; 8.5; 9; 12; 15; 18; 24V THERMAL OVERLOAD PROTECTION SHORT CIRCUIT PROTECTION OUTPUT TRANSITION SOA PROTECTION DESCRIPTION The L7800 series of three-terminal positive regulators is available in TO-220 ISOWATT220 TO-3 and D 2 PAK packages and several fixed output voltages, making it useful in a wide range of applications.these regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. Each type employs internal current limiting, thermal shut-down and safe area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. 1 2 TO-3 TO D 2 PAK ISOWATT BLOCK DIAGRAM January /25

2 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit Vi DC Input Voltage (for VO = 5 to 18V) (for V O = 20, 24V) I o Output Current Internally limited Ptot Power Dissipation Internally limited T op Operating Junction Temperature Range (for L7800) (for L7800C) to 125 0to150 Tstg Storage Temperature Range - 40 to 150 V V o C o C o C THERMAL DATA Symbol Parameter D 2 PAK TO-220 ISOWATT220 TO-3 Unit Rthj-case Thermal Resistance Junction-case Max o C/W R th j-a mb Thermal Resistance Junction-ambient Max o C/W CONNECTION DIAGRAM AND ORDERING NUMBERS (top view) TO-220 & ISOWATT220 D 2 PAK TO-3 L7805 L7805C L7852C L7806 L7806C L7808 L7808C L7885C L7809C L7812 L7812C L7815 L7815C L7818 L7818C L7820 L7820C L7824 L7824C Type TO-220 D 2 PAK (*) ISOWATT220 TO-3 Output Voltage L7805CV L7852CV L7806CV L7808CV L7885CV L7809CV L7812CV L7815CV L7818CV L7820CV L7805CD2T L7852CD2T L7806CD2T L7808CD2T L7885CD2T L7809CD2T L7812CD2T L7815CD2T L7818CD2T L7820CD2T L7824CV L7824CD2T (*) AVAILABLE IN TAPE AND REEL WITH -TR SUFFIX L7805CP L7852CP L7806CP L7808CP L7885CP L7809CP L7812CP L7815CP L7818CP L7820CP L7824CP L7805T L7805CT L7852CT L7806T L7806CT L7808T L7808CT L7885CT L7809CT L7812T L7812CT L7815T L7815CT L7818T L7818CT L7820T L7820CT L7824T L7824CT 5V 5V 5.2V 6V 6V 8V 8V 8.5V 9V 12V 12V 15V 15V 18V 18V 20V 20V 24V 24V 2/25

3 APPLICATION CIRCUIT SCHEMATIC DIAGRAM 3/25

4 TEST CIRCUITS Figure 1 : DC Parameter Figure 2 : Load Regulation. Figure 3 : Ripple Rejection. 4/25

5 ELECTRICAL CHARACTERISTICS FOR L7805 (refer to the test circuits, T j = -55 to 150 o C, V i = 10V, I o = 500 ma, C i = 0.33 µf, C o = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i = 8 to 20 V V o * Line Regulation V i =7to25V T j =25 o C Vi=8to12V Tj=25 o C * Load Regulation Io = 5 to 1500 ma Tj =25 o C I d Quiescent Current T j =25 o C 6 ma Id Quiescent Current Change Vi = 8to25V 0.8 ma Output Voltage Drift Io =5mA 0.6 / o C en Output Noise Voltage B = 10Hz to 100KHz T j =25 o C 40 µv/v O SVR Supply Voltage Rejection Vi = 8 to 18 V f = 120 Hz 68 db V d Dropout Voltage I o =1A T j =25 o C V R o Output Resistance f = 1 KHz 17 mω Isc Short Circuit Current Vi =35V Tj =25 o C A Iscp Short Circuit Peak Current Tj =25 o C A ELECTRICAL CHARACTERISTICS FOR L7806 (refer to the test circuits, T j = -55 to 150 o C, Vi = 15V, Io = 500 ma, Ci = 0.33 µf, Co = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i = 9 to 21 V * Line Regulation Vi =8to25V Tj=25 o C V i =9to13V T j =25 o C V o * Load Regulation I o = 5 to 1500 ma T j =25 o C I d Quiescent Current T j =25 o C 6 ma I d Quiescent Current Change V i =9to25V 0.8 ma Output Voltage Drift Io =5mA 0.7 / o C en Output Noise Voltage B = 10Hz to 100KHz Tj =25 o C 40 µv/vo SVR Supply Voltage Rejection Vi = 9 to 19 V f = 120 Hz 65 db V d Dropout Voltage I o =1A T j =25 o C V R o Output Resistance f = 1 KHz 19 mω I sc Short Circuit Current V i =35V T j =25 o C A I scp Short Circuit Peak Current T j =25 o C A * Load and line regulation are specified at constant junction temperature. Changes in V o due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used /25

6 ELECTRICAL CHARACTERISTICS FOR L7808 (refer to the test circuits, T j = -55 to 150 o C, V i = 14V, I o = 500 ma, C i = 0.33 µf, C o = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i = 11.5 to 23 V V o * Line Regulation V i = 10.5 to 25 V T j =25 o C Vi=11to17V Tj=25 o C * Load Regulation Io = 5 to 1500 ma Tj =25 o C I d Quiescent Current T j =25 o C 6 ma Id Quiescent Current Change Vi = 11.5 to 25 V 0.8 ma Output Voltage Drift Io =5mA 1 / o C en Output Noise Voltage B = 10Hz to 100KHz T j =25 o C 40 µv/v O SVR Supply Voltage Rejection Vi = 11.5 to 21.5 V f = 120 Hz 62 db V d Dropout Voltage I o =1A T j =25 o C V R o Output Resistance f = 1 KHz 16 mω Isc Short Circuit Current Vi =35V Tj =25 o C A Iscp Short Circuit Peak Current Tj =25 o C A ELECTRICAL CHARACTERISTICS FOR L7812 (refer to the test circuits, T j = -55 to 150 o C, Vi = 19V, Io = 500 ma, Ci = 0.33 µf, Co = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i = 15.5 to 27 V * Line Regulation Vi = 14.5 to 30 V Tj =25 o C V i =16to22V T j =25 o C V o * Load Regulation I o = 5 to 1500 ma T j =25 o C I d Quiescent Current T j =25 o C 6 ma I d Quiescent Current Change V i =15to30V 0.8 ma Output Voltage Drift Io =5mA 1.5 / o C en Output Noise Voltage B = 10Hz to 100KHz Tj =25 o C 40 µv/vo SVR Supply Voltage Rejection Vi =15to25V f= 120Hz 61 db V d Dropout Voltage I o =1A T j =25 o C V R o Output Resistance f = 1 KHz 18 mω I sc Short Circuit Current V i =35V T j =25 o C A I scp Short Circuit Peak Current T j =25 o C A * Load and line regulation are specified at constant junction temperature. Changes in V o due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used /25

7 ELECTRICAL CHARACTERISTICS FOR L7815 (refer to the test circuits, T j = -55 to 150 o C, V i = 23V, I o = 500 ma, C i = 0.33 µf, C o = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i = 18.5 to 30 V V o * Line Regulation V i = 17.5 to 30 V T j =25 o C Vi=20to26V Tj=25 o C * Load Regulation Io = 5 to 1500 ma Tj =25 o C I d Quiescent Current T j =25 o C 6 ma Id Quiescent Current Change Vi = 18.5 to 30 V 0.8 ma Output Voltage Drift Io =5mA 1.8 / o C en Output Noise Voltage B = 10Hz to 100KHz T j =25 o C 40 µv/v O SVR Supply Voltage Rejection Vi = 18.5 to 28.5 V f = 120 Hz 60 db V d Dropout Voltage I o =1A T j =25 o C V R o Output Resistance f = 1 KHz 19 mω Isc Short Circuit Current Vi =35V Tj =25 o C A Iscp Short Circuit Peak Current Tj =25 o C A ELECTRICAL CHARACTERISTICS FOR L7818 (refer to the test circuits, T j = -55 to 150 o C, Vi = 26V, Io = 500 ma, Ci = 0.33 µf, Co = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i =22to33V * Line Regulation Vi =21to33V Tj=25 o C V i =24to30V T j =25 o C V o * Load Regulation I o = 5 to 1500 ma T j =25 o C I d Quiescent Current T j =25 o C 6 ma I d Quiescent Current Change V i =22to33V 0.8 ma Output Voltage Drift Io =5mA 2.3 / o C en Output Noise Voltage B = 10Hz to 100KHz Tj =25 o C 40 µv/vo SVR Supply Voltage Rejection Vi =22to32V f= 120Hz 59 db V d Dropout Voltage I o =1A T j =25 o C V R o Output Resistance f = 1 KHz 22 mω I sc Short Circuit Current V i =35V T j =25 o C A I scp Short Circuit Peak Current T j =25 o C A * Load and line regulation are specified at constant junction temperature. Changes in V o due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used /25

8 ELECTRICAL CHARACTERISTICS FOR L7820 (refer to the test circuits, T j = -55 to 150 o C, V i = 28V, I o = 500 ma, C i = 0.33 µf, C o = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i =24to35V V o * Line Regulation V i = 22.5 to 35 V T j =25 o C Vi=26to32V Tj=25 o C * Load Regulation Io = 5 to 1500 ma Tj =25 o C I d Quiescent Current T j =25 o C 6 ma Id Quiescent Current Change Vi = 24to35V 0.8 ma Output Voltage Drift Io =5mA 2.5 / o C en Output Noise Voltage B = 10Hz to 100KHz T j =25 o C 40 µv/v O SVR Supply Voltage Rejection Vi =24to35V f= 120Hz 58 db V d Dropout Voltage I o =1A T j =25 o C V R o Output Resistance f = 1 KHz 24 mω Isc Short Circuit Current Vi =35V Tj =25 o C A Iscp Short Circuit Peak Current Tj =25 o C A ELECTRICAL CHARACTERISTICS FOR L7824 (refer to the test circuits, T j = -55 to 150 o C, Vi = 33V, Io = 500 ma, Ci = 0.33 µf, Co = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i =28to38V * Line Regulation Vi =27to38V Tj=25 o C V i =30to36V T j =25 o C V o * Load Regulation I o = 5 to 1500 ma T j =25 o C I d Quiescent Current T j =25 o C 6 ma I d Quiescent Current Change V i =28to38V 0.8 ma Output Voltage Drift Io =5mA 3 / o C en Output Noise Voltage B = 10Hz to 100KHz Tj =25 o C 40 µv/vo SVR Supply Voltage Rejection Vi =28to38V f= 120Hz 56 db V d Dropout Voltage I o =1A T j =25 o C V R o Output Resistance f = 1 KHz 28 mω I sc Short Circuit Current V i =35V T j =25 o C A I scp Short Circuit Peak Current T j =25 o C A * Load and line regulation are specified at constant junction temperature. Changes in V o due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used /25

9 ELECTRICAL CHARACTERISTICS FOR L7805C (refer to the test circuits, T j = 0 to 125 o C, V i = 10V, I o = 500 ma, C i = 0.33 µf, C o = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i = 7 to 20 V V o * Line Regulation V i =7to25V T j =25 o C Vi=8to12V Tj=25 o C * Load Regulation Io = 5 to 1500 ma Tj =25 o C I d Quiescent Current T j =25 o C 8 ma Id Quiescent Current Change Vi = 7to25V 0.8 ma Output Voltage Drift Io = 5 ma -1.1 / o C en Output Noise Voltage B = 10Hz to 100KHz T j =25 o C 40 µv SVR Supply Voltage Rejection Vi = 8 to 18 V f = 120 Hz 62 db V d Dropout Voltage I o =1A T j =25 o C 2 V R o Output Resistance f = 1 KHz 17 mω Isc Short Circuit Current Vi =35V Tj =25 o C 750 ma Iscp Short Circuit Peak Current Tj =25 o C 2.2 A ELECTRICAL CHARACTERISTICS FOR L7852C (refer to the test circuits, T j = 0 to 125 o C, V i = 10V, Io = 500 ma, Ci = 0.33 µf, Co = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i = 8 to 20 V * Line Regulation Vi =7to25V Tj=25 o C V i =8to12V T j =25 o C V o * Load Regulation I o = 5 to 1500 ma T j =25 o C I d Quiescent Current T j =25 o C 8 ma I d Quiescent Current Change V i =7to25V 1.3 ma Output Voltage Drift Io = 5 ma -1.0 / o C en Output Noise Voltage B = 10Hz to 100KHz Tj =25 o C 42 µv SVR Supply Voltage Rejection Vi = 8 to 18 V f = 120 Hz 61 db V d Dropout Voltage I o =1A T j =25 o C 2 V R o Output Resistance f = 1 KHz 17 mω I sc Short Circuit Current V i =35V T j =25 o C 750 ma I scp Short Circuit Peak Current T j =25 o C 2.2 A * Load and line regulation are specified at constant junction temperature. Changes in V o due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used /25

10 ELECTRICAL CHARACTERISTICS FOR L7806C (refer to the test circuits, T j = 0 to 125 o C, V i = 11V, I o = 500 ma, C i = 0.33 µf, C o = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i = 8 to 21 V V o * Line Regulation V i =8to25V T j =25 o C Vi=9to13V Tj=25 o C * Load Regulation Io = 5 to 1500 ma Tj =25 o C I d Quiescent Current T j =25 o C 8 ma Id Quiescent Current Change Vi = 8to25V 1.3 ma Output Voltage Drift Io = 5 ma -0.8 / o C en Output Noise Voltage B = 10Hz to 100KHz T j =25 o C 45 µv SVR Supply Voltage Rejection Vi = 9 to 19 V f = 120 Hz 59 db V d Dropout Voltage I o =1A T j =25 o C 2 V R o Output Resistance f = 1 KHz 19 mω Isc Short Circuit Current Vi =35V Tj =25 o C 550 ma Iscp Short Circuit Peak Current Tj =25 o C 2.2 A ELECTRICAL CHARACTERISTICS FOR L7808C (refer to the test circuits, T j = 0 to 125 o C, V i = 14V, Io = 500 ma, Ci = 0.33 µf, Co = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i = 10.5 to 25 V * Line Regulation Vi = 10.5 to 25 V Tj =25 o C V i =11to17V T j =25 o C V o * Load Regulation I o = 5 to 1500 ma T j =25 o C I d Quiescent Current T j =25 o C 8 ma I d Quiescent Current Change V i = 10.5 to 25 V 1 ma Output Voltage Drift Io = 5 ma -0.8 / o C en Output Noise Voltage B = 10Hz to 100KHz Tj =25 o C 52 µv SVR Supply Voltage Rejection Vi = 11.5 to 21.5 V f = 120 Hz 56 db V d Dropout Voltage I o =1A T j =25 o C 2 V R o Output Resistance f = 1 KHz 16 mω I sc Short Circuit Current V i =35V T j =25 o C 450 ma I scp Short Circuit Peak Current T j =25 o C 2.2 A * Load and line regulation are specified at constant junction temperature. Changes in V o due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used /25

11 ELECTRICAL CHARACTERISTICS FOR L7885C (refer to the test circuits, T j = 0 to 125 o C, V i = 14.5V, I o = 500 ma, C i = 0.33 µf, C o = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i =11to26V V o * Line Regulation V i =11to27V T j =25 o C Vi = 11.5 to 17.5 V Tj =25 o C * Load Regulation Io = 5 to 1500 ma Tj =25 o C I d Quiescent Current T j =25 o C 8 ma Id Quiescent Current Change Vi = 11to27V 1 ma Output Voltage Drift Io = 5 ma -0.8 / o C en Output Noise Voltage B = 10Hz to 100KHz T j =25 o C 55 µv SVR Supply Voltage Rejection Vi =12to22V f= 120Hz 56 db V d Dropout Voltage I o =1A T j =25 o C 2 V R o Output Resistance f = 1 KHz 16 mω Isc Short Circuit Current Vi =35V Tj =25 o C 450 ma Iscp Short Circuit Peak Current Tj =25 o C 2.2 A ELECTRICAL CHARACTERISTICS FOR L7809C (refer to the test circuits, T j = 0 to 125 o C, V i = 15V, Io = 500 ma, Ci = 0.33 µf, Co = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i = 11.5 to 26 V * Line Regulation Vi = 11.5 to 26 V Tj =25 o C V i =12to18V T j =25 o C V o * Load Regulation I o = 5 to 1500 ma T j =25 o C I d Quiescent Current T j =25 o C 8 ma I d Quiescent Current Change V i = 11.5 to 26 V 1 ma Output Voltage Drift Io = 5 ma -1.0 / o C en Output Noise Voltage B = 10Hz to 100KHz Tj =25 o C 70 µv SVR Supply Voltage Rejection Vi =12to23V f= 120Hz 55 db V d Dropout Voltage I o =1A T j =25 o C 2 V R o Output Resistance f = 1 KHz 17 mω I sc Short Circuit Current V i =35V T j =25 o C 400 ma I scp Short Circuit Peak Current T j =25 o C 2.2 A * Load and line regulation are specified at constant junction temperature. Changes in V o due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used /25

12 ELECTRICAL CHARACTERISTICS FOR L7812C (refer to the test circuits, T j = 0 to 125 o C, V i = 19V, I o = 500 ma, C i = 0.33 µf, C o = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i = 14.5 to 27 V V o * Line Regulation V i = 14.5 to 30 V T j =25 o C Vi=16to22V Tj=25 o C * Load Regulation Io = 5 to 1500 ma Tj =25 o C I d Quiescent Current T j =25 o C 8 ma Id Quiescent Current Change Vi = 14.5 to 30 V 1 ma Output Voltage Drift Io = 5 ma -1 / o C en Output Noise Voltage B = 10Hz to 100KHz T j =25 o C 75 µv SVR Supply Voltage Rejection Vi =15to25V f= 120Hz 55 db V d Dropout Voltage I o =1A T j =25 o C 2 V R o Output Resistance f = 1 KHz 18 mω Isc Short Circuit Current Vi =35V Tj =25 o C 350 ma Iscp Short Circuit Peak Current Tj =25 o C 2.2 A ELECTRICAL CHARACTERISTICS FOR L7815C (refer to the test circuits, T j = 0 to 125 o C, V i = 23V, Io = 500 ma, Ci = 0.33 µf, Co = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i = 17.5 to 30 V * Line Regulation Vi = 17.5 to 30 V Tj =25 o C V i =20to26V T j =25 o C V o * Load Regulation I o = 5 to 1500 ma T j =25 o C I d Quiescent Current T j =25 o C 8 ma I d Quiescent Current Change V i = 17.5 to 30 V 1 ma Output Voltage Drift Io = 5 ma -1 / o C en Output Noise Voltage B = 10Hz to 100KHz Tj =25 o C 90 µv SVR Supply Voltage Rejection Vi = 18.5 to 28.5 V f = 120 Hz 54 db V d Dropout Voltage I o =1A T j =25 o C 2 V R o Output Resistance f = 1 KHz 19 mω I sc Short Circuit Current V i =35V T j =25 o C 230 ma I scp Short Circuit Peak Current T j =25 o C 2.1 A * Load and line regulation are specified at constant junction temperature. Changes in V o due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used /25

13 ELECTRICAL CHARACTERISTICS FOR L7818C (refer to the test circuits, T j = 0 to 125 o C, V i = 26V, I o = 500 ma, C i = 0.33 µf, C o = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i =21to33V V o * Line Regulation V i =21to33V T j =25 o C Vi =24to30V Tj=25 o C * Load Regulation Io = 5 to 1500 ma Tj =25 o C I d Quiescent Current T j =25 o C 8 ma Id Quiescent Current Change Vi = 21to33V 1 ma Output Voltage Drift Io = 5 ma -1 / o C en Output Noise Voltage B = 10Hz to 100KHz T j =25 o C 110 µv SVR Supply Voltage Rejection Vi =22to32V f= 120Hz 53 db V d Dropout Voltage I o =1A T j =25 o C 2 V R o Output Resistance f = 1 KHz 22 mω Isc Short Circuit Current Vi =35V Tj =25 o C 200 ma Iscp Short Circuit Peak Current Tj =25 o C 2.1 A ELECTRICAL CHARACTERISTICS FOR L7820C (refer to the test circuits, T j = 0 to 125 o C, V i = 28V, Io = 500 ma, Ci = 0.33 µf, Co = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i =23to35V * Line Regulation Vi = 22.5 to 35 V Tj =25 o C V i =26to32V T j =25 o C V o * Load Regulation I o = 5 to 1500 ma T j =25 o C I d Quiescent Current T j =25 o C 8 ma I d Quiescent Current Change V i =23to35V 1 ma Output Voltage Drift Io = 5 ma -1 / o C en Output Noise Voltage B = 10Hz to 100KHz Tj =25 o C 150 µv SVR Supply Voltage Rejection Vi =24to35V f= 120Hz 52 db V d Dropout Voltage I o =1A T j =25 o C 2 V R o Output Resistance f = 1 KHz 24 mω I sc Short Circuit Current V i =35V T j =25 o C 180 ma I scp Short Circuit Peak Current T j =25 o C 2.1 A * Load and line regulation are specified at constant junction temperature. Changes in V o due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used /25

14 ELECTRICAL CHARACTERISTICS FOR L7824C (refer to the test circuits, T j = 0 to 125 o C, V i = 33V, I o = 500 ma, C i = 0.33 µf, C o = 0.1 µf unless otherwise specified) Vo Output Voltage Tj =25 o C V V V i =27to38V V o * Line Regulation V i =27to38V T j =25 o C Vi =30to36V Tj=25 o C * Load Regulation Io = 5 to 1500 ma Tj =25 o C I d Quiescent Current T j =25 o C 8 ma Id Quiescent Current Change Vi = 27to38V 1 ma Output Voltage Drift Io = 5 ma -1.5 / o C en Output Noise Voltage B = 10Hz to 100KHz T j =25 o C 170 µv SVR Supply Voltage Rejection Vi =28to38V f= 120Hz 50 db V d Dropout Voltage I o =1A T j =25 o C 2 V R o Output Resistance f = 1 KHz 28 mω Isc Short Circuit Current Vi =35V Tj =25 o C 150 ma Iscp Short Circuit Peak Current Tj =25 o C 2.1 A * Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used /25

15 Figure 4 : Dropout Voltage vs. Junction Temperature. Figure 5 : Peak Output Current vs. Input/output Differential Voltage. Figure 6 : Supply Voltage Rejection vs. Frequency. Figure 7 : Output Voltage vs. Junction Temperature. Figure 8 : Output Impedance vs. Frequency. Figure 9 : Quiescent Current vs. Junction Temperature. 15/25

16 Figure 10 : Load Transient Response. Figure 11 : Line Transient Response. Figure 12 : Quiescent Current vs. Input Voltage. Figure 13 : Fixed Output Regulator. Figure 14 : Current Regulator. IO = V XX + I d R 1 NOTE: 1. To specify an output voltage, substitute voltage value for XX. 2. Although no output capacitor is need for stability, it does improve transient response. 3. Required if cregulator is locate an appreciable distance from power supply filter. 16/25

17 Figure 15 : Circuit for Increasing Output Voltage. Figure 16 : Adjustable Output Regulator (7 to 30V). IR1 5Id VO =V XX (1 + R 2 R 1 )+I dr 2 Figure 17 : 0.5 to 10V Regulator. Figure 18 : High Current Voltage Regulator. VO = V XX R 4 R 1 R1 = V BEQ1 I REQ I Q1 β Q1 IO = I REG + Q 1 (I REG V BEQ1 R 1 ) 17/25

18 Figure 19 : High Output Current with Short Circuit Protection. Figure 20 : Tracking Voltage Regulator. R SC = V BEQ2 I SC Figure 21 : Split Power Supply (± 15V 1A). Figure 22 : Negative Output Voltage Circuit. * Against potential latch-up problems. Figure 23 : Switching Regulator. Figure 24 : High Input Voltage Circuit. VIN =Vi -(VZ +VBE) 18/25

19 Figure 25 : High Input Voltage Circuit. Figure 26 : High Output Voltage Regulator. Figure 27 : High Input and Output Voltage. Figure 28 : Reducing Power Dissipation with Dr opping Resistor. V O =V XX +V Z1 R= V i(min) V XX V DROP(max) I O(max) + I d(max) Figure 29 : Remote Shutdown. 19/25

20 Figure 30 : Power AM Modulator (unity voltage gain, Io < 1A). Figure 31 : Adjustable Output Voltage with Temperature Compensation. V O = V XX (1 + R 2 R 1 )+V BE NOTE: The circuit performs well up to 100KHz Figure 32 : Light Controllers (Vo min =Vxx +VBE). NOTE: Q 2 is connected as a diode in order to compensate the variation of the Q1 VBE with the temperature. C allows a slow risetime of the V o V O falls when the light goes up V O rises when the light goes up Figure 33 : Protection against Input Short-circuit with High Capacitance Loads. Application with high capacitance loads and an output voltage greater than 6 volts need an external diode (see fig. 33) to protect the deviceagainst input short circuit. In this case the input voltage falls rapidly while the output voltage decrease slowly. The capacitance dischrges by means of the Base-Emitter junction of the series pass transistor in the regulator. If the energy is sufficently high, the transistor may be destroyed. The external diode by-passes the current from the IC to ground. 20/25

21 TO-3 (R) MECHANICAL DATA DIM. mm inch MIN. TYP. MAX. MIN. TYP. MAX. A B C D E G N P R U V P A D G C N O U V B E R P003N 21/25

22 TO-220 MECHANICAL DATA DIM. mm inch MIN. TYP. MAX. MIN. TYP. MAX. A C D D E F F F G G H L L L L L L DIA D1 F G C D A E L2 G1 H2 F1 Dia. L5 L7 L9 F2 L6 L4 P011C 22/25

23 ISOWATT220 MECHANICAL DATA DIM. mm inch MIN. TYP. MAX. MIN. TYP. MAX. A B D E F F F G G H L L L L L Ø H G B D A E L6 L7 L3 F1 F F2 G L2 L4 P011G 23/25

24 TO-263 (D 2 PAK) MECHANICAL DATA DIM. mm inch MIN. TYP. MAX. MIN. TYP. MAX. A A B B C C D E G L L L E A C2 L2 L D L3 B2 A1 B C G P011P6/C 24/25

25 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsabilityfor the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSONMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectonics SGS-THOMSON Microelectronics- Printed in Italy - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore - Spain - Sweden - Switzerland- Taiwan - Thailand - United Kingdom - U.S.A. 25/25