LM78XX / LM78XXA 3-Terminal 1 A Positive Voltage Regulator Features Description • • • • • The LM78XX series of three-terminal positive regulators is available in the TO-220 package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shut-down, and safe operating area protection. If adequate heat sinking is provided, they can deliver over 1 A output current. Although designed primarily as fixedvoltage regulators, these devices can be used with external components for adjustable voltages and currents. Output Current up to 1 A Output Voltages: 5, 6, 8, 9, 10, 12, 15, 18, 24 V Thermal Overload Protection Short-Circuit Protection Output Transistor Safe Operating Area Protection TO-220 (Single Gauge) GND 1 1. Input 2. GND 3. Output Ordering Information(1) Product Number Output Voltage Tolerance Package Operating Temperature Packing Method LM7805CT LM7806CT LM7808CT LM7809CT LM7810CT -40°C to +125°C ±4% LM7812CT LM7815CT TO-220 (Single Gauge) LM7818CT Rail LM7824CT LM7805ACT LM7809ACT LM7810ACT ±2% 0°C to +125°C LM7812ACT LM7815ACT Note: 1. Above output voltage tolerance is available at 25°C. © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator September 2014 Input Series Pass Element 1 Current Generator Starting Circuit Reference Voltage Output 3 SOA Protection Error Amplifier Thermal Protection GND 2 Figure 1. Block Diagram Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Values are at TA = 25°C unless otherwise noted. Symbol VI Parameter Input Voltage Value VO = 5 V to 18 V 35 VO = 24 V 40 RθJC Thermal Resistance, Junction-Case (TO-220) RθJA Thermal Resistance, Junction-Air (TO-220) TOPR Operating Temperature Range TSTG Storage Temperature Range © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 LM78xx LM78xxA Unit V 5 °C/W 65 °C/W -40 to +125 0 to +125 - 65 to +150 °C °C www.fairchildsemi.com 2 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Block Diagram Refer to the test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 10 V, CI = 0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. TJ = +25°C 4.80 5.00 5.20 Output Voltage IO = 5 mA to 1 A, PO ≤ 15 W, VI = 7 V to 20 V 4.75 5.00 5.25 Regline Line Regulation(2) TJ = +25°C Regload Load Regulation(2) TJ = +25°C IQ Quiescent Current TJ = +25°C ΔIQ Quiescent Current Change ΔVO/ΔT VN VO Unit V VI = 7 V to 25 V 4.0 100.0 VI = 8 V to 12 V 1.6 50.0 IO = 5 mA to 1.5 A 9.0 100.0 IO = 250 mA to 750 mA 4.0 50.0 5 8 IO = 5 mA to 1 A 0.03 0.50 VI = 7 V to 25 V 0.30 1.30 Output Voltage Drift(3) IO = 5 mA -0.8 mV/°C Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 42 μV RR Ripple Rejection VDROP Dropout Voltage (3) (3) f = 120 Hz, VI = 8 V to 18 V 62 mV mV mA mA 73 dB TJ = +25°C, IO = 1 A 2 V f = 1 kHz 15 mΩ RO Output Resistance ISC Short-Circuit Current TJ = +25°C, VI = 35 V 230 mA IPK Peak Current(3) TJ = +25°C 2.2 A Notes: 2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 3. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 3 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Electrical Characteristics (LM7805) Refer to the test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 11 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. TJ = +25°C 5.75 6.00 6.25 Output Voltage IO = 5 mA to 1 A, PO ≤ 15 W, VI = 8.0 V to 21 V 5.70 6.00 6.30 Regline Line Regulation(4) TJ = +25°C VI = 8 V to 25 V 5.0 120.0 VI = 9 V to 13 V 1.5 60.0 Regload Load Regulation(4) TJ = +25°C IO = 5 mA to 1.5 A 9.0 120.0 IO = 250 mA to 750 mA 3.0 60.0 IQ Quiescent Current TJ = +25°C Quiescent Current Change IO = 5 mA to 1 A 0.5 VI = 8 V to 25 V 1.3 ΔVO/ΔT Output Voltage Drift(5) IO = 5 mA VN Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C VO ΔIQ RR Ripple Rejection(5) 5 f = 120 Hz, VI = 8 V to 18 V 62 8 Unit V mV mV mA mA -0.8 mV/°C 45 μV 73 dB Dropout Voltage TJ = +25°C, IO = 1 A 2 V RO Output Resistance(5) f = 1 kHz 19 mΩ ISC Short-Circuit Current TJ = +25°C, VI = 35 V 250 mA TJ = +25°C 2.2 A VDROP IPK Peak Current (5) Notes: 4. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 5. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 4 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Electrical Characteristics (LM7806) Refer to the test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 14 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit TJ = +25°C 7.7 8.0 8.3 Output Voltage IO = 5 mA to 1 A, PO ≤ 15 W, VI = 10.5 V to 23 V 7.6 8.0 8.4 Regline Line Regulation(6) TJ = +25°C VI = 10.5 V to 25 V 5 160 VI = 11.5 V to 17 V 2 80 Regload Load Regulation(6) TJ = +25°C IO = 5 mA to 1.5 A 10 160 IO = 250 mA to 750 mA 5 80 IQ Quiescent Current TJ = +25°C 5 8 Quiescent Current Change IO = 5 mA to 1 A 0.05 0.50 VI = 10.5 V to 25 V 0.5 1.0 ΔVO/ΔT Output Voltage Drift(7) IO = 5 mA -0.8 mV/°C VN Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 52 μV 73 dB VO ΔIQ RR Ripple Rejection(7) f = 120 Hz, VI = 11.5 V to 21.5 V 56 V mV mV mA mA Dropout Voltage IO = 1 A, TJ = +25°C 2 V RO Output Resistance(7) f = 1 kHz 17 mΩ ISC Short-Circuit Current VI = 35 V, TJ = +25°C 230 mA TJ = +25°C 2.2 A VDROP IPK Peak Current (7) Notes: 6. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 7. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 5 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Electrical Characteristics (LM7808) Refer to the test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 15 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit TJ = +25°C 8.65 9.00 9.35 Output Voltage IO = 5 mA to 1 A, PO ≤ 15 W, VI = 11.5 V to 24 V 8.60 9.00 9.40 Regline Line Regulation(8) TJ = +25°C VI = 11.5 V to 25 V 6 180 VI = 12 V to 17 V 2 90 Regload Load Regulation(8) TJ = +25°C IO = 5 mA to 1.5 A 12 180 IO = 250 mA to 750 mA 4 90 IQ Quiescent Current TJ = +25°C Quiescent Current Change IO = 5 mA to 1 A 0.5 VI = 11.5 V to 26 V 1.3 ΔVO/ΔT Output Voltage Drift(9) IO = 5 mA -1 mV/°C VN Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 58 μV 71 dB VO ΔIQ RR Ripple Rejection(9) 5 f = 120 Hz, VI = 13 V to 23 V 56 8 V mV mV mA mA Dropout Voltage IO = 1 A, TJ = +25°C 2 V RO Output Resistance(9) f = 1 kHz 17 mΩ ISC Short-Circuit Current VI = 35 V, TJ = +25°C 250 mA TJ = +25°C 2.2 A VDROP IPK Peak Current (9) Notes: 8. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 9. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 6 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Electrical Characteristics (LM7809) Refer to the test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 16 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit TJ = +25°C 9.6 10.0 10.4 Output Voltage IO = 5 mA to 1 A, PO ≤ 15 W, VI = 12.5 V to 25 V 9.5 10.0 10.5 Regline Line Regulation(10) TJ = +25°C VI = 12.5 V to 25 V 10 200 VI = 13 V to 25 V 3 100 Regload Load Regulation(10) TJ = +25°C IO = 5 mA to 1.5 A 12 200 IO = 250 mA to 750 mA 4 400 IQ Quiescent Current TJ = +25°C 5.1 8.0 Quiescent Current Change IO = 5 mA to 1 A 0.5 VI = 12.5 V to 29 V 1.0 Output Voltage Drift(11) IO = 5 mA -1 mV/°C Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 58 μV 71 dB VO ΔIQ ΔVO/ΔT VN RR Ripple Rejection(11) f = 120 Hz, VI = 13 V to 23 V 56 V mV mV mA mA Dropout Voltage IO = 1 A, TJ = +25°C 2 V RO Output Resistance(11) f = 1 kHz 17 mΩ ISC Short-Circuit Current VI = 35 V, TJ = +25°C 250 mA TJ = +25°C 2.2 A VDROP IPK Peak Current (11) Notes: 10. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 11. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 7 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Electrical Characteristics (LM7810) Refer to the test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 19 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit TJ = +25°C 11.5 12.0 12.5 Output Voltage IO = 5 mA to 1 A, PO ≤ 15 W, VI = 14.5 V to 27 V 11.4 12.0 12.6 Regline Line Regulation(12) TJ = +25°C VI = 14.5 V to 30 V 10 240 VI = 16 V to 22 V 3 120 Regload Load Regulation(12) TJ = +25°C IO = 5 mA to 1.5 A 11 240 IO = 250 mA to 750 mA 5 120 IQ Quiescent Current TJ = +25°C 5.1 8.0 Quiescent Current Change IO = 5 mA to 1 A 0.1 0.5 VI = 14.5 V to 30 V 0.5 1.0 Output Voltage Drift(13) IO = 5 mA -1 mV/°C Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 76 μV 71 dB VO ΔIQ ΔVO/ΔT VN RR Ripple Rejection(13) f = 120 Hz, VI = 15 V to 25 V 55 V mV mV mA mA Dropout Voltage IO = 1 A, TJ = +25°C 2 V RO Output Resistance(13) f = 1 kHz 18 mΩ ISC Short-Circuit Current VI = 35 V, TJ = +25°C 230 mA TJ = +25°C 2.2 A VDROP IPK Peak Current (13) Notes: 12. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 13. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 8 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Electrical Characteristics (LM7812) Refer to the test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 23 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit TJ = +25°C 14.40 15.00 15.60 Output Voltage IO = 5 mA to 1 A, PO ≤ 15 W, VI = 17.5 V to 30 V 14.25 15.00 15.75 Regline Line Regulation(14) TJ = +25°C VI = 17.5 V to 30 V 11 300 VI = 20 V to 26 V 3 150 Regload Load Regulation(14) TJ = +25°C IO = 5 mA to 1.5 A 12 300 IO = 250 mA to 750 mA 4 150 IQ Quiescent Current TJ = +25°C 5.2 8.0 Quiescent Current Change IO = 5 mA to 1 A 0.5 VI = 17.5 V to 30 V 1.0 Output Voltage Drift(15) IO = 5 mA -1 mV/°C Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 90 μV 70 dB VO ΔIQ ΔVO/ΔT VN RR Ripple Rejection(15) f = 120 Hz, VI = 18.5 V to 28.5 V 54 V mV mV mA mA Dropout Voltage IO = 1 A, TJ = +25°C 2 V RO Output Resistance(15) f = 1 kHz 19 mΩ ISC Short-Circuit Current VI = 35 V, TJ = +25°C 250 mA TJ = +25°C 2.2 A VDROP IPK Peak Current (15) Notes: 14. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 15. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 9 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Electrical Characteristics (LM7815) Refer to the test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 27 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. TJ = +25°C 17.3 18.0 18.7 Output Voltage IO = 5 mA to 1 A, PO ≤ 15 W, VI = 21 V to 33 V 17.1 18.0 18.9 Regline Line Regulation(16) TJ = +25°C VI = 21 V to 33 V 15 360 VI = 24 V to 30 V 5 180 Regload Load Regulation(16) TJ = +25°C IO = 5 mA to 1.5 A 15 360 IO = 250 mA to 750 mA 5 180 IQ Quiescent Current TJ = +25°C 5.2 8.0 Quiescent Current Change IO = 5 mA to 1 A 0.5 VI = 21 V to 33 V 1.0 Output Voltage Drift(17) IO = 5 mA Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C VO ΔIQ ΔVO/ΔT VN RR Ripple Rejection(17) f = 120 Hz, VI = 22 V to 32 V 53 Unit V mV mV mA mA -1 mV/°C 110 μV 69 dB Dropout Voltage IO = 1 A, TJ = +25°C 2 V RO Output Resistance(17) f = 1 kHz 22 mΩ ISC Short-Circuit Current VI = 35 V, TJ = +25°C 250 mA TJ = +25°C 2.2 A VDROP IPK Peak Current (17) Notes: 16. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 17. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 10 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Electrical Characteristics (LM7818) Refer to the test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 33 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol Parameter Conditions Min. Typ. Max. Unit TJ = +25°C 23.00 24.00 25.00 Output Voltage IO = 5 mA to 1 A, PO ≤ 15 W, VI = 27 V to 38 V 22.80 24.00 25.25 Regline Line Regulation(18) TJ = +25°C VI = 27 V to 38 V 17 480 VI = 30 V to 36 V 6 240 Regload Load Regulation(18) TJ = +25°C IO = 5 mA to 1.5 A 15 480 IO = 250 mA to 750 mA 5 240 IQ Quiescent Current TJ = +25°C 5.2 8.0 Quiescent Current Change IO = 5 mA to 1 A 0.1 0.5 VI = 27 V to 38 V 0.5 1.0 Output Voltage Drift(19) IO = 5 mA -1.5 mV/°C Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 120 μV 67 dB VO ΔIQ ΔVO/ΔT VN RR Ripple Rejection(19) f = 120 Hz, VI = 28 V to 38 V 50 V mV mV mA mA Dropout Voltage IO = 1 A, TJ = +25°C 2 V RO Output Resistance(19) f = 1 kHz 28 mΩ ISC Short-Circuit Current VI = 35 V, TJ = +25°C 230 mA TJ = +25°C 2.2 A VDROP IPK Peak Current (19) Notes: 18. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 19. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 11 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Electrical Characteristics (LM7824) Refer to the test circuit, 0°C < TJ < 125°C, IO = 1 A, VI = 10 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol VO Regline Parameter Conditions Output Voltage Line Regulation(20) Min. Typ. Max. TJ = +25°C 4.9 5.0 5.1 IO = 5 mA to 1 A, PO ≤ 15 W, VI = 7.5 V to 20 V 4.8 5.0 5.2 VI = 7.5 V to 25 V, IO = 500 mA 5.0 50.0 VI = 8 V to 12 V 3.0 50.0 VI = 7.3 V to 20 V 5.0 50.0 VI = 8 V to 12 V 1.5 25.0 9 100 TJ = +25°C TJ = +25°C, IO = 5 mA to 1.5 A Regload Load Regulation (20) IQ Quiescent Current ΔIQ Quiescent Current Change ΔVO/ΔT Output Voltage Drift (21) IO = 5 mA to 1 A 9 100 IO = 250 mA to 750 mA 4 50 TJ = +25°C 5 6 IO = 5 mA to 1 A 0.5 VI = 8 V to 25 V, IO = 500 mA 0.8 VI = 7.5 V to 20 V, TJ = +25°C 0.8 IO = 5 mA Unit V mV mV mA mA -0.8 mV/°C VN Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 42 μV RR Ripple Rejection(21) f = 120 Hz, VO = 500 mA, VI =8 V to 18 V 68 dB Dropout Voltage IO = 1 A, TJ = +25°C 2 V RO Output Resistance(21) f = 1 kHz 17 mΩ ISC Short-Circuit Current VI = 35 V, TJ = +25°C 250 mA TJ = +25°C 2.2 A VDROP IPK Peak Current (21) Notes: 20. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 21. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 12 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Electrical Characteristics (LM7805A) Refer to the test circuit, 0°C < TJ < 125°C, IO = 1 A, VI = 15 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol VO Regline Parameter Conditions Output Voltage Line Regulation(22) Min. Typ. Max. TJ = +25°C 8.82 9.00 9.16 IO = 5 mA to 1 A, PO ≤ 15 W, VI = 11.2 V to 24 V 8.65 9.00 9.35 VI = 11.7 V to 25 V, IO = 500 mA 6 90 VI = 12.5 V to 19 V 4 45 VI = 11.5 V to 24 V 6 90 VI = 12.5 V to 19 V 2 45 TJ = +25°C, IO = 5 mA to 1.5 A 12 100 TJ = +25°C Regload Load Regulation (22) IQ Quiescent Current ΔIQ Quiescent Current Change ΔVO/ΔT Output Voltage Drift (23) IO = 5 mA to 1 A 12 100 IO = 250 mA to 750 mA 5 50 TJ = +25°C 5 6 IO = 5 mA to 1 A 0.5 VI = 12 V to 25 V, IO = 500 mA 0.8 VI = 11.7 V to 25 V, TJ = +25°C 0.8 Unit V mV mV mA mA IO = 5 mA -1 mV/°C VN Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 58 μV RR Ripple Rejection(23) f = 120 Hz, VO = 500 mA, VI =12 V to 22 V 62 dB Dropout Voltage IO = 1 A, TJ = +25°C 2 V RO Output Resistance(23) f = 1 kHz 17 mΩ ISC Short-Circuit Current VI = 35 V, TJ = +25°C 250 mA TJ = +25°C 2.2 A VDROP IPK Peak Current (23) Notes: 22. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 23. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 13 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Electrical Characteristics (LM7809A) Refer to the test circuit, 0°C < TJ < 125°C, IO = 1 A, VI = 16 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol VO Regline Parameter Conditions Output Voltage Line Regulation(24) Min. Typ. Max. TJ = +25°C 9.8 10.0 10.2 IO = 5 mA to 1 A, PO ≤ 15 W, VI = 12.8 V to 25 V 9.6 10.0 10.4 VI = 12.8 V to 26 V, IO = 500 mA 8 100 VI = 13 V to 20 V 4 50 VI = 12.5 V to 25 V 8 100 VI = 13 V to 20 V 3 50 TJ = +25°C, IO = 5 mA to 1.5 A 12 100 TJ = +25°C Regload Load Regulation (24) IQ Quiescent Current ΔIQ Quiescent Current Change ΔVO/ΔT Output Voltage Drift (25) IO = 5 mA to 1 A 12 100 IO = 250 mA to 750 mA 5 50 TJ = +25°C 5 6 IO = 5 mA to 1 A 0.5 VI = 12.8 V to 25 V, IO = 500 mA 0.8 VI = 13 V to 26 V, TJ = +25°C 0.5 Unit V mV mV mA mA IO = 5 mA -1 mV/°C VN Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 58 μV RR Ripple Rejection(25) f = 120 Hz, VO = 500 mA, VI =14 V to 24 V 62 dB Dropout Voltage IO = 1 A, TJ = +25°C 2 V RO Output Resistance(25) f = 1 kHz 17 mΩ ISC Short-Circuit Current VI = 35 V, TJ = +25°C 250 mA TJ = +25°C 2.2 A VDROP IPK Peak Current (25) Notes: 24. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 25. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 14 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Electrical Characteristics (LM7810A) Refer to the test circuit, 0°C < TJ < 125°C, IO = 1 A, VI = 19 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol VO Regline Parameter Conditions Output Voltage Line Regulation(26) Min. Typ. Max. TJ = +25°C 11.75 12.00 12.25 IO = 5 mA to 1 A, PO ≤ 15 W, VI = 14.8 V to 27 V 11.50 12.00 12.50 VI = 14.8 V to 30 V, IO = 500 mA 10 120 VI = 16 V to 22 V 4 120 VI = 14.5 V to 27 V 10 120 VI = 16 V to 22 V 3 60 TJ = +25°C, IO = 5 mA to 1.5 A 12 100 TJ = +25°C Regload Load Regulation (26) IQ Quiescent Current ΔIQ Quiescent Current Change ΔVO/ΔT Output Voltage Drift (27) IO = 5 mA to 1 A 12 100 IO = 250 mA to 750 mA 5 50 TJ = +25°C 5 6 IO = 5 mA to 1 A 0.5 VI = 14 V to 27 V, IO = 500 mA 0.8 VI = 15 V to 30 V, TJ = +25°C 0.8 Unit V mV mV mA mA IO = 5 mA -1 mV/°C VN Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 76 μV RR Ripple Rejection(27) f = 120 Hz, VO = 500 mA, VI =14 V to 24 V 60 dB Dropout Voltage IO = 1 A, TJ = +25°C 2 V RO Output Resistance(27) f = 1 kHz 18 mΩ ISC Short-Circuit Current VI = 35 V, TJ = +25°C 250 mA TJ = +25°C 2.2 A VDROP IPK Peak Current (27) Notes: 26. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 27. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 15 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Electrical Characteristics (LM7812A) Refer to the test circuit, 0°C < TJ < 125°C, IO = 1 A, VI = 23 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified. Symbol VO Regline Parameter Conditions Output Voltage Line Regulation(28) Min. Typ. Max. TJ = +25°C 14.75 15.00 15.30 IO = 5 mA to 1 A, PO ≤ 15 W, VI = 17.7 V to 30 V 14.40 15.00 15.60 VI = 17.4 V to 30 V, IO = 500 mA 10 150 VI = 20 V to 26 V 5 150 VI = 17.5 V to 30 V 11 150 VI = 20 V to 26 V 3 75 TJ = +25°C, IO = 5 mA to 1.5 A 12 100 IO = 5 mA to 1 A 12 100 IO = 250 mA to 750 mA 5 50 5.2 6.0 TJ = +25°C Regload Load Regulation (28) IQ Quiescent Current ΔIQ Quiescent Current Change ΔVO/ΔT Output Voltage Drift TJ = +25°C (29) IO = 5 mA to 1 A 0.5 VI = 17.5 V to 30 V, IO = 500 mA 0.8 VI = 17.5 V to 30 V, TJ = +25°C 0.8 Unit V mV mV mA mA IO = 5 mA -1 mV/°C VN Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 90 μV RR Ripple Rejection(29) f = 120 Hz, VO = 500 mA, VI =18.5 V to 28.5 V 58 dB Dropout Voltage IO = 1 A, TJ = +25°C 2 V RO Output Resistance(29) f = 1 kHz 19 mΩ ISC Short-Circuit Current VI = 35 V, TJ = +25°C 250 mA TJ = +25°C 2.2 A VDROP IPK Peak Current (29) Notes: 28. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 29. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 16 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Electrical Characteristics (LM7815A) 5.75 3 VI = 10V VO = 5V IO = 5mA 5.5 5.25 5 4.75 2 1.5 1 .5 4.5 -50 -25 0 25 50 75 100 0 125 JUNCTION TEMPERATURE (°C) QUIESCENT CURRENT (mA) NORMALIZED OUTPUT VOLTAGE (V) 7 1.01 1 0.99 -25 0 25 50 75 100 10 15 20 25 30 35 TJ = 25°C VO = 5V IO = 10mA 6.5 6 5.5 5 4.5 4 125 JUNCTION TEMPERATURE (°C) 5 10 15 20 25 30 35 INPUT VOLTAGE (V) Figure 4. Output Voltage © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 5 Figure 3. Peak Output Current VI – VO = 5V IO = 5mA 0.98 -50 0 INPUT-OUTPUT DIFFERENTIAL (V) Figure 2. Quiescent Current 1.02 TJ = 25°C ΔVO = 100mV 2.5 OUTPUT CURRENT (A) QUIESCENT CURRENT (mA) 6 Figure 5. Quiescent Current www.fairchildsemi.com 17 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Typical Performance Characteristics 1 LM78XX Input 2 CI 0.33μF 3 Output CO 0.1μF Figure 6. DC Parameters 1 LM78XX Input 3 Output 2 270pF RL VO 2N6121 or EQ 0.33μF VO 100Ω 0V 30μS Figure 7. Load Regulation 5.1Ω 1 LM78XX Input 3 Output 0.33μF 2 RL 470μF 120Hz + Figure 8. Ripple Rejection © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 18 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Typical Applications LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Typical Applications (Continued) 1 LM78XX Input CI 2 3 Output CO 0.33μF 0.1μF Figure 9. Fixed-Output Regulator 1 Input CI 3 LM78XX 2 CO 0.33μF Output V XX 0.1μF R1 IQ IO RL V XX IO = + R1 IQ Figure 10. Constant Current Regulator Notes: 29. To specify an output voltage, substitute voltage value for “XX”. A common ground is required between the input and the output voltage. The input voltage must remain typically 2.0 V above the output voltage even during the low point on the input ripple voltage. 30. CI is required if regulator is located an appreciable distance from power supply filter. 31. CO improves stability and transient response. 1 Input CI 2 0.33μF Output 3 LM78XX CO 0.1μF V XX R1 IQ R2 IRI ≥ 5 IQ VO = VXX(1 + R2 / R1) + IQR2 Figure 11. Circuit for Increasing Output Voltage © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 19 (Continued) Input 1 LM7805 Output 3 2 CI 0.33μF - 2 LM741 + 3 4 6 CO 0.1μF 10kΩ IRI ≥ 5 IQ VO = VXX(1 + R2 / R1) + IQR2 Figure 12. Adjustable Output Regulator (7 V to 30 V) Q1 BD536 Input IQ1 R1 1 3Ω R1 = IO IREG V BEQ1 Output 3 LM78XX 2 0.1μF 0.33μF IREG–IQ1/ BQ1 IO = IREG + BQ1 (IREG–VBEQ1/R1) Figure 13. High-Current Voltage Regulator Input Q1 RSC Q2 R1 1 LM78XX 3 Output 3Ω 0.33μF Q1 = TIP42 Q2 = TIP42 RSC = 2 0.1μF V BEQ2 I SC Figure 14. High Output Current with Short-Circuit Protection © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 20 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Typical Applications (Continued) 1 3 LM78XX VI VO 2 0.33μF 0.1μF 7 COMMON 6 COMMON 2 LM741 4 -VIN _ 4.7kΩ + 3 4.7kΩ -VO TIP42 Figure 15. Tracking Voltage Regulator 1 3 LM7815 +20V +15V 0.33μF + 2 0.1μF 1N4001 2.2μF 1μF + 1 2 -20V 1N4001 3 MC7915 -15V Figure 16. Split Power Supply (±15 V - 1 A) © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 21 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Typical Applications (Continued) Output Input + 0.1μF 2 1 3 LM78XX Figure 17. Negative Output Voltage Circuit D45H11 Input 1mH Output 470Ω 4.7Ω Z1 1 + 0.33μF LM78XX 3 2 10μF + 0.5Ω 2000μF Figure 18. Switching Regulator © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 22 LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Typical Applications LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator Physical Dimensions Figure 19. TO-220, MOLDED, 3-LEAD, JEDEC VARIATION AB (ACTIVE) © 2006 Fairchild Semiconductor Corporation LM78XX / LM78XXA Rev. 1.3.1 www.fairchildsemi.com 23 TRADEMARKS The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not intended to be an exhaustive list of all such trademarks. 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