L78xx L78xxC Positive voltage regulators Features ■ Output current to 1.5 A ■ Output voltages of 5; 6; 8; 8.5; 9; 12; 15; 18; 24 V ■ Thermal overload protection ■ Short circuit protection ■ Output transition SOA protection TO-220 TO-220FP Description The L78xx series of three-terminal positive regulators is available in TO-220, TO-220FP, TO-3, D2PAK and DPAK 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 1 A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltage and currents. Table 1. TO-3 DPAK D²PAK Device summary Part numbers March 2008 L7805 L7809C L7805C L7812C L7806C L7815C L7808C L7818C L7885C L7824C Rev 19 1/56 www.st.com 56 Contents L78xx - L78xxC Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Test circuits 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 8 Order codes 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 2/56 ............................................... 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 L78xx - L78xxC List of figures List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. Figure 26. Figure 27. Figure 28. Figure 29. Figure 30. Figure 31. Figure 32. Figure 33. Figure 34. Figure 35. Figure 36. Figure 37. Figure 38. Figure 39. Figure 40. Figure 41. Figure 42. Figure 43. Figure 44. Figure 45. Figure 46. Figure 47. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 DC parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Load regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Ripple rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Dropout voltage vs junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Peak output current vs input/output differential voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Supply voltage rejection vs frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Output voltage vs junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Output impedance vs frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Quiescent current vs junction temp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Load transient response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Line transient response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Quiescent current vs input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Fixed output regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Current regulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Circuit for increasing output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Adjustable output regulator (7 to 30 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 0.5 to 10 V regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 High current voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 High output current with short circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Tracking voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Split power supply (± 15 V - 1 A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Negative output voltage circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Switching regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 High input voltage circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 High input voltage circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 High output voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 High input and output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Reducing power dissipation with dropping resistor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Remote shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Power AM modulator (unity voltage gain, IO ≤0.5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Adjustable output voltage with temperature compensation . . . . . . . . . . . . . . . . . . . . . . . . 37 Light controllers (VOmin = VXX + VBE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Protection against input short-circuit with high capacitance loads . . . . . . . . . . . . . . . . . . . 38 Drawing dimension TO-220 (type SMIC-subcon.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Drawing dimension TO-220 (type STD-ST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Drawing dimension TO-220FP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Drawing dimension TO-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Drawing dimension DPAK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Drawing dimension tape and reel for DPAK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Drawing dimension D²PAK (type STD-ST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Drawing dimension D²PAK (type WOOSEOK-Subcon.). . . . . . . . . . . . . . . . . . . . . . . . . . . 50 D²PAK footprint recommended data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Drawing dimension tape and reel for D²PAK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 3/56 List of tables L78xx - L78xxC List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17. Table 18. Table 19. Table 20. Table 21. Table 22. Table 23. Table 24. Table 25. Table 26. Table 27. Table 28. Table 29. Table 30. Table 31. Table 32. Table 33. 4/56 Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Electrical characteristics of L7805 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Electrical characteristics of L7806 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Electrical characteristics of L7808 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Electrical characteristics of L7812 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Electrical characteristics of L7815 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Electrical characteristics of L7818 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Electrical characteristics of L7820 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Electrical characteristics of L7824 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Electrical characteristics of L7805C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Electrical characteristics of L7852C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Electrical characteristics of L7806C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Electrical characteristics of L7808C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Electrical characteristics of L7885C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Electrical characteristics of L7809C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Electrical characteristics of L7810C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Electrical characteristics of L7812C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Electrical characteristics of L7815C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Electrical characteristics of L7818C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Electrical characteristics of L7820C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Electrical characteristics of L7824C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 TO-220 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 TO-220FP mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 TO-3 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 DPAK mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Tape and reel DPAK mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 D²PAK mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 D²PAK footprint data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Tape and reel D²PAK mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 L78xx - L78xxC 1 Diagram Figure 1. Block diagram Diagram 5/56 Pin configuration L78xx - L78xxC 2 Pin configuration Figure 2. Pin connections (top view) TO-220 D2PAK (Any Type) Figure 3. 6/56 Schematic diagram TO-220FP DPAK TO-3 L78xx - L78xxC Maximum ratings 3 Maximum ratings Table 2. Absolute maximum ratings Symbol Parameter Value for VO= 5 to 18 V 35 for VO= 20, 24 V 40 Unit VI DC input voltage IO Output current Internally limited PD Power dissipation Internally limited TSTG Storage temperature range TOP Operating junction temperature range V -65 to 150 for L7800 °C -55 to 150 °C for L7800C 0 to 150 Note: Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. Table 3. Thermal data Symbol Parameter RthJC Thermal resistance junction-case RthJA Thermal resistance junction-ambient Figure 4. D2PAK DPAK TO-220 TO-220FP TO-3 Unit 3 8 5 5 4 °C/W 62.5 100 50 60 35 °C/W Application circuits 7/56 Test circuits 4 Test circuits Figure 5. DC parameter Figure 6. Load regulation Figure 7. Ripple rejection 8/56 L78xx - L78xxC L78xx - L78xxC Electrical characteristics 5 Electrical characteristics Table 4. Electrical characteristics of L7805 (refer to the test circuits, TJ = -55 to 150 °C, VI = 10 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 4.8 5 5.2 V VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 8 to 20 V 4.65 5 5.35 V ΔVO(1) VI = 7 to 25 V, TJ = 25°C 3 50 Line regulation VI = 8 to 12 V, TJ = 25°C 1 25 ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change mV IO = 5 mA to 1.5 A, TJ = 25°C 100 IO = 250 to 750 mA, TJ = 25°C 25 TJ = 25°C 6 mV IO = 5 mA to 1 A 0.5 VI = 8 to 25 V 0.8 mA Output voltage drift IO = 5 mA Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 8 to 18 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 RO Output resistance f = 1 kHz 17 Isc Short circuit current VI = 35 V, TJ = 25°C Iscp Short circuit peak current TJ = 25°C eN SVR mA 0.6 mV/°C 40 68 1.3 µV/VO dB 2.5 V mΩ 0.75 1.2 A 2.2 3.3 A 1. 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 cycle is used. 9/56 Electrical characteristics Table 5. Symbol L78xx - L78xxC Electrical characteristics of L7806 (refer to the test circuits, TJ = -55 to 150 °C, VI = 11 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 5.75 6 6.25 V VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 9 to 21 V 5.65 6 6.35 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change VI = 8 to 25 V, TJ = 25°C 60 VI = 9 to 13 V, TJ = 25°C 30 IO = 5 mA to 1.5 A, TJ = 25°C 100 IO = 250 to 750 mA, TJ = 25°C 30 TJ = 25°C 6 mV mV IO = 5 mA to 1 A 0.5 VI = 9 to 25 V 0.8 mA Output voltage drift IO = 5 mA Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 9 to 19 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 RO Output resistance f = 1 kHz 19 Isc Short circuit current VI = 35 V, TJ = 25°C Iscp Short circuit peak current TJ = 25°C eN SVR mA 0.7 mV/°C 40 65 1.3 dB 2.5 V mΩ 0.75 1.2 A 2.2 3.3 A 1. 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 cycle is used. 10/56 µV/VO L78xx - L78xxC Table 6. Symbol Electrical characteristics Electrical characteristics of L7808 (refer to the test circuits, TJ = -55 to 150 °C, VI = 14V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 7.7 8 8.3 V VO Output voltage IO = 5 mA to 1A, PO ≤15 W VI = 11.5 to 23 V 7.6 8 8.4 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change VI = 10.5 to 25 V, TJ = 25°C 80 VI = 11 to 17 V, TJ = 25°C 40 IO = 5 mA to 1.5 A, TJ = 25°C 100 IO = 250 to 750 mA, TJ = 25°C 40 TJ = 25°C 6 mV mV IO = 5 mA to 1 A 0.5 VI = 11.5 to 25 V 0.8 mA Output voltage drift IO = 5 mA Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 11.5 to 21.5 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 RO Output resistance f = 1 kHz 16 Isc Short circuit current VI = 35 V, TJ = 25°C Iscp Short circuit peak current TJ = 25°C eN SVR mA 1 mV/°C 40 62 1.3 µV/VO dB 2.5 V mΩ 0.75 1.2 A 2.2 3.3 A 1. 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 cycle is used. 11/56 Electrical characteristics Table 7. Symbol L78xx - L78xxC Electrical characteristics of L7812 (refer to the test circuits, TJ = -55 to 150 °C, VI = 19 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 11.5 12 12.5 V VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 15.5 to 27 V 11.4 12 12.6 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change VI = 14.5 to 30 V, TJ = 25°C 120 VI = 16 to 22 V, TJ = 25°C 60 IO = 5 mA to 1.5 A, TJ = 25°C 100 IO = 250 to 750 mA, TJ = 25°C 60 TJ = 25°C 6 mV mV IO = 5 mA to 1 A 0.5 VI = 15 to 30 V 0.8 mA Output voltage drift IO = 5 mA Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 15 to 25 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 RO Output resistance f = 1 kHz 18 Isc Short circuit current VI = 35 V, TJ = 25°C Iscp Short circuit peak current TJ = 25°C eN SVR mA 1.5 mV/°C 40 61 1.3 dB 2.5 V mΩ 0.75 1.2 A 2.2 3.3 A 1. 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 cycle is used. 12/56 µV/VO L78xx - L78xxC Table 8. Symbol Electrical characteristics Electrical characteristics of L7815 (refer to the test circuits, TJ = -55 to 150 °C, VI = 23 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 14.4 15 15.6 V VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 18.5 to 30 V 14.25 15 15.75 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change VI = 17.5 to 30 V, TJ = 25°C 150 VI = 20 to 26 V, TJ = 25°C 75 IO = 5 mA to 1.5 A, TJ = 25°C 150 IO = 250 to 750 mA, TJ = 25°C 75 TJ = 25°C 6 mV mV IO = 5 mA to 1 A 0.5 VI = 18.5 to 30 V 0.8 mA Output voltage drift IO = 5 mA Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 18.5 to 28.5 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 RO Output resistance f = 1 kHz 19 Isc Short circuit current VI = 35 V, TJ = 25°C Iscp Short circuit peak current TJ = 25°C eN SVR mA 1.8 mV/°C 40 60 1.3 µV/VO dB 2.5 V mΩ 0.75 1.2 A 2.2 3.3 A 1. 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 cycle is used. 13/56 Electrical characteristics Table 9. Symbol L78xx - L78xxC Electrical characteristics of L7818 (refer to the test circuits, TJ = -55 to 150 °C, VI = 26 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 17.3 18 18.7 V VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 22 to 33 V 17.1 18 18.9 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change VI = 21 to 33 V, TJ = 25°C 180 VI = 24 to 30 V, TJ = 25°C 90 IO = 5 mA to 1.5 A, TJ = 25°C 180 IO = 250 to 750 mA, TJ = 25°C 90 TJ = 25°C 6 mV mV IO = 5 mA to 1 A 0.5 VI = 22 to 33 V 0.8 mA Output voltage drift IO = 5 mA Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 22 to 32 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 RO Output resistance f = 1 kHz 22 Isc Short circuit current VI = 35 V, TJ = 25°C Iscp Short circuit peak current TJ = 25°C eN SVR mA 2.3 mV/°C 40 59 1.3 dB 2.5 V mΩ 0.75 1.2 A 2.2 3.3 A 1. 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 cycle is used. 14/56 µV/VO L78xx - L78xxC Table 10. Symbol Electrical characteristics Electrical characteristics of L7820 (refer to the test circuits, TJ = -55 to 150 °C, VI = 28 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions VO Output voltage TJ = 25°C VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 24 to 35 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change Min. Typ. Max. Unit 19.2 20 20.8 V 19 20 21 V VI = 22.5 to 35 V, TJ = 25°C 200 VI = 26 to 32 V, TJ = 25°C 100 IO = 5 mA to 1.5 A, TJ = 25°C 200 IO = 250 to 750 mA, TJ = 25°C 100 mV mV TJ = 25°C 6 IO = 5 mA to 1 A 0.5 VI = 24 to 35 V 0.8 mA Output voltage drift IO = 5 mA Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 24 to 35 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 RO Output resistance f = 1 kHz 24 Isc Short circuit current VI = 35 V, TJ = 25°C Iscp Short circuit peak current TJ = 25°C eN SVR mA 2.5 mV/°C 40 58 1.3 µV/VO dB 2.5 V mΩ 0.75 1.2 A 2.2 3.3 A 1. 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 cycle is used. 15/56 Electrical characteristics Table 11. Symbol L78xx - L78xxC Electrical characteristics of L7824 (refer to the test circuits, TJ = -55 to 150 °C, VI = 33 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions VO Output voltage TJ = 25°C VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 28 to 38 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change Min. Typ. Max. Unit 23 24 25 V 22.8 24 25.2 V VI = 27 to 38 V, TJ = 25°C 240 VI = 30 to 36 V, TJ = 25°C 120 IO = 5 mA to 1.5 A, TJ = 25°C 240 IO = 250 to 750 mA, TJ = 25°C 120 mV mV TJ = 25°C 6 IO = 5 mA to 1 A 0.5 VI = 28 to 38 V 0.8 mA Output voltage drift IO = 5 mA Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 28 to 38 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 RO Output resistance f = 1 kHz 28 Isc Short circuit current VI = 35 V, TJ = 25°C Iscp Short circuit peak current TJ = 25°C eN SVR mA 3 mV/°C 40 56 1.3 dB 2.5 V mΩ 0.75 1.2 A 2.2 3.3 A 1. 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 cycle is used. 16/56 µV/VO L78xx - L78xxC Table 12. Symbol Electrical characteristics Electrical characteristics of L7805C (refer to the test circuits, TJ = 0 to 150 °C, VI = 10 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 4.8 5 5.2 V VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 7 to 20 V 4.75 5 5.25 V ΔVO(1) VI = 7 to 25 V, TJ = 25°C 3 100 Line regulation VI = 8 to 12 V, TJ = 25°C 1 50 ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change mV IO = 5 mA to 1.5 A, TJ = 25°C 100 IO = 250 to 750 mA, TJ = 25°C 50 TJ = 25°C 8 mV IO = 5 mA to 1 A 0.5 VI = 7 to 25 V 0.8 mA mA Output voltage drift IO = 5 mA Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 8 to 18 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V RO Output resistance f = 1 kHz 17 mΩ Isc Short circuit current VI = 35 V, TJ = 25°C 0.75 A Iscp Short circuit peak current TJ = 25°C 2.2 A eN SVR -1.1 mV/°C 40 µV/VO 62 dB 1. 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 cycle is used. 17/56 Electrical characteristics Table 13. Symbol L78xx - L78xxC Electrical characteristics of L7852C (refer to the test circuits, TJ = 0 to 150 °C, VI = 10 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 5.0 5.2 5.4 V VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 8 to 20 V 4.95 5.2 5.45 V ΔVO(1) VI = 7 to 25 V, TJ = 25°C 3 105 Line regulation VI = 8 to 12 V, TJ = 25°C 1 52 ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change mV IO = 5 mA to 1.5 A, TJ = 25°C 105 IO = 250 to 750 mA, TJ = 25°C 52 TJ = 25°C 8 mV IO = 5 mA to 1 A 0.5 VI = 7 to 25 V 1.3 mA mA Output voltage drift IO = 5 mA -1 mV/°C Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C 42 µV/VO Supply voltage rejection VI = 8 to 18 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V RO Output resistance f = 1 kHz 17 mΩ Isc Short circuit current VI = 35 V, TJ = 25°C 0.75 A Iscp Short circuit peak current TJ = 25°C 2.2 A eN SVR 61 dB 1. 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 cycle is used. 18/56 L78xx - L78xxC Table 14. Symbol Electrical characteristics Electrical characteristics of L7806C (refer to the test circuits, TJ = 0 to 150 °C, VI = 11 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 5.75 6 6.25 V VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 8 to 21 V 5.7 6 6.3 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change VI = 8 to 25 V, TJ = 25°C 120 VI = 9 to 13 V, TJ = 25°C 60 IO = 5 mA to 1.5 A, TJ = 25°C 120 IO = 250 to 750 mA, TJ = 25°C 60 TJ = 25°C 8 mV mV IO = 5 mA to 1 A 0.5 VI = 8 to 25 V 1.3 mA mA Output voltage drift IO = 5 mA Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 9 to 19 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V RO Output resistance f = 1 kHz 19 mΩ Isc Short circuit current VI = 35 V, TJ = 25°C 0.55 A Iscp Short circuit peak current TJ = 25°C 2.2 A eN SVR -0.8 mV/°C 45 µV/VO 59 dB 1. 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 cycle is used. 19/56 Electrical characteristics Table 15. Symbol L78xx - L78xxC Electrical characteristics of L7808C (refer to the test circuits, TJ = 0 to 150 °C, VI = 14 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 7.7 8 8.3 V VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 10.5 to 25 V 7.6 8 8.4 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change VI = 10.5 to 25 V, TJ = 25°C 160 VI = 11 to 17 V, TJ = 25°C 80 IO = 5 mA to 1.5 A, TJ = 25°C 160 IO = 250 to 750 mA, TJ = 25°C 80 TJ = 25°C 8 mV mV IO = 5 mA to 1 A 0.5 VI = 10.5 to 25 V 1 mA mA Output voltage drift IO = 5 mA Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 11.5 to 21.5 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V RO Output resistance f = 1 kHz 16 mΩ Isc Short circuit current VI = 35 V, TJ = 25°C 0.45 A Iscp Short circuit peak current TJ = 25°C 2.2 A eN SVR -0.8 mV/°C 52 µV/VO 56 dB 1. 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 cycle is used. 20/56 L78xx - L78xxC Table 16. Symbol Electrical characteristics Electrical characteristics of L7885C (refer to the test circuits, TJ = 0 to 150 °C, VI = 14.5 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 8.2 8.5 8.8 V VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 11 to 26 V 8.1 8.5 8.9 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change VI = 11 to 27 V, TJ = 25°C 160 VI = 11.5 to 17.5 V, TJ = 25°C 80 IO = 5 mA to 1.5 A, TJ = 25°C 160 IO = 250 to 750 mA, TJ = 25°C 80 TJ = 25°C 8 mV mV IO = 5 mA to 1 A mA 0.5 mA VI = 11 to 27 V 1 Output voltage drift IO = 5 mA Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 12 to 22V, f = 120Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V RO Output resistance f = 1 kHz 16 mΩ Isc Short circuit current VI = 35 V, TJ = 25°C 0.45 A Iscp Short circuit peak current TJ = 25°C 2.2 A eN SVR -0.8 mV/°C 55 µV/VO 56 dB 1. 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 cycle is used. 21/56 Electrical characteristics Table 17. Symbol L78xx - L78xxC Electrical characteristics of L7809C (refer to the test circuits, TJ = 0 to 150 °C, VI = 15 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 8.64 9 9.36 V VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 11.5 to 26 V 8.55 9 9.45 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change VI = 11.5 to 26 V, TJ = 25°C 180 VI = 12 to 18 V, TJ = 25°C 90 IO = 5 mA to 1.5 A, TJ = 25°C 180 IO = 250 to 750 mA, TJ = 25°C 90 TJ = 25°C 8 mV mV IO = 5 mA to 1 A 0.5 VI = 11.5 to 26 V 1 mA mA Output voltage drift IO = 5 mA -1 mV/°C Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C 70 µV/VO Supply voltage rejection VI = 12 to 23 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V RO Output resistance f = 1 kHz 17 mΩ Isc Short circuit current VI = 35 V, TJ = 25°C 0.40 A Iscp Short circuit peak current TJ = 25°C 2.2 A eN SVR 55 dB 1. 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 cycle is used. 22/56 L78xx - L78xxC Table 18. Symbol Electrical characteristics Electrical characteristics of L7810C (refer to the test circuits, TJ = 0 to 150 °C, VI = 15 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 9.6 10 10.4 V VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 12.5 to 26 V 9.5 10 10.5 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change VI = 12.5 to 26 V, TJ = 25°C 200 VI = 13.5 to 19 V, TJ = 25°C 100 IO = 5 mA to 1.5 A, TJ = 25°C 200 IO = 250 to 750 mA, TJ = 25°C 100 mV mV TJ = 25°C 8 IO = 5 mA to 1 A 0.5 VI = 12.5 to 26 V 1 mA mA Output voltage drift IO = 5 mA -1 mV/°C Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C 70 µV/VO Supply voltage rejection VI = 13 to 23 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V RO Output resistance f = 1 kHz 17 mΩ Isc Short circuit current VI = 35 V, TJ = 25°C 0.40 A Iscp Short circuit peak current TJ = 25°C 2.2 A eN SVR 55 dB 1. 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 cycle is used. 23/56 Electrical characteristics Table 19. Symbol L78xx - L78xxC Electrical characteristics of L7812C (refer to the test circuits, TJ = 0 to 150 °C, VI = 19 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 11.5 12 12.5 V VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 14.5 to 27 V 11.4 12 12.6 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change VI = 14.5 to 30 V, TJ = 25°C 240 VI = 16 to 22 V, TJ = 25°C 120 IO = 5 mA to 1.5 A, TJ = 25°C 240 IO = 250 to 750 mA, TJ = 25°C 120 mV mV TJ = 25°C 8 IO = 5 mA to 1 A 0.5 VI = 14.5 to 30 V 1 mA mA Output voltage drift IO = 5 mA -1 mV/°C Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C 75 µV/VO Supply voltage rejection VI = 15 to 25 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V RO Output resistance f = 1 kHz 18 mΩ Isc Short circuit current VI = 35 V, TJ = 25°C 0.35 A Iscp Short circuit peak current TJ = 25°C 2.2 A eN SVR 55 dB 1. 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 cycle is used. 24/56 L78xx - L78xxC Table 20. Symbol Electrical characteristics Electrical characteristics of L7815C (refer to the test circuits, TJ = 0 to 150 °C, VI = 23 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 14.5 15 15.6 V VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 17.5 to 30 V 14.25 15 15.75 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change VI = 17.5 to 30 V, TJ = 25°C 300 VI = 20 to 26 V, TJ = 25°C 150 IO = 5 mA to 1.5 A, TJ = 25°C 300 IO = 250 to 750 mA, TJ = 25°C 150 mV mV TJ = 25°C 8 IO = 5 mA to 1A 0.5 VI = 17.5 to 30 V 1 mA mA Output voltage drift IO = 5 mA -1 mV/°C Output noise voltage B =10 Hz to 100kHz, TJ = 25°C 90 µV/VO Supply voltage rejection VI = 18.5 to 28.5 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V RO Output resistance f = 1 kHz 19 mΩ Isc Short circuit current VI = 35 V, TJ = 25°C 0.23 A Iscp Short circuit peak current TJ = 25°C 2.2 A eN SVR 54 dB 1. 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 cycle is used. 25/56 Electrical characteristics Table 21. Symbol L78xx - L78xxC Electrical characteristics of L7818C (refer to the test circuits, TJ = 0 to 150 °C, VI = 26 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 17.3 18 18.7 V VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 21 to 33 V 17.1 18 18.9 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change VI = 21 to 33 V, TJ = 25°C 360 VI = 24 to 30 V, TJ = 25°C 180 IO = 5 mA to 1.5 A, TJ = 25°C 360 IO = 250 to 750 mA, TJ = 25°C 180 mV mV TJ = 25°C 8 IO = 5 mA to 1 A mA 0.5 mA VI = 21 to 33 V 1 Output voltage drift IO = 5 mA Output noise voltage B = 10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 22 to 32 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V RO Output resistance f = 1 kHz 22 mΩ Isc Short circuit current VI = 35 V, TJ = 25°C 0.20 A Iscp Short circuit peak current TJ = 25°C 2.1 A eN SVR -1 mV/°C 110 µV/VO 53 dB 1. 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 cycle is used. 26/56 L78xx - L78xxC Table 22. Symbol Electrical characteristics Electrical characteristics of L7820C (refer to the test circuits, TJ = 0 to 150 °C, VI = 28 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions VO Output voltage TJ = 25°C VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 23 to 35 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change Min. Typ. Max. Unit 19.2 20 20.8 V 19 20 21 V VI = 22.5 to 35 V, TJ = 25°C 400 VI = 26 to 32 V, TJ = 25°C 200 IO = 5 mA to 1.5 A, TJ = 25°C 400 IO = 250 to 750 mA, TJ = 25°C 200 mV mV TJ = 25°C 8 IO = 5 mA to 1 A mA 0.5 mA VI = 23 to 35 V 1 Output voltage drift IO = 5 mA Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 24 to 35 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V RO Output resistance f = 1 kHz 24 mΩ Isc Short circuit current VI = 35 V, TJ = 25°C 0.18 A Iscp Short circuit peak current TJ = 25°C 2.1 A eN SVR -1 mV/°C 150 µV/VO 52 dB 1. 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 cycle is used. 27/56 Electrical characteristics Table 23. Symbol L78xx - L78xxC Electrical characteristics of L7824C (refer to the test circuits, TJ = 0 to 150 °C, VI = 33 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter Test conditions VO Output voltage TJ = 25°C VO Output voltage IO = 5 mA to 1 A, PO ≤15 W VI = 27 to 38 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change Min. Typ. Max. Unit 23 24 25 V 22.8 24 25.2 V VI = 27 to 38 V, TJ = 25°C 480 VI = 30 to 36 V, TJ = 25°C 240 IO = 5 mA to 1.5 A, TJ = 25°C 480 IO = 250 to 750 mA, TJ = 25°C 240 mV mV TJ = 25°C 8 IO = 5 mA to 1 A mA 0.5 mA VI = 27 to 38 V 1 Output voltage drift IO = 5 mA -1.5 mV/°C Output noise voltage B = 10 Hz to 100 kHz, TJ = 25°C 170 µV/VO Supply voltage rejection VI = 28 to 38 V, f = 120 Hz Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V RO Output resistance f = 1 kHz 28 mΩ Isc Short circuit current VI = 35 V, TJ = 25°C 0.15 A Iscp Short circuit peak current TJ = 25°C 2.1 A eN SVR 50 dB 1. 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 cycle is used. 28/56 L78xx - L78xxC 6 Typical performance Figure 8. Dropout voltage vs junction temperature Typical performance Figure 9. Peak output current vs input/output differential voltage Figure 10. Supply voltage rejection vs frequency Figure 11. Output voltage vs junction temperature Figure 12. Output impedance vs frequency Figure 13. Quiescent current vs junction temp. 29/56 Typical performance Figure 14. Load transient response L78xx - L78xxC Figure 15. Line transient response Figure 16. Quiescent current vs input voltage Figure 17. Fixed output regulator 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 regulator is locate an appreciable distance from power supply filter. 30/56 L78xx - L78xxC Typical performance Figure 18. Current regulator IO = VXX/R1+Id Figure 19. Circuit for increasing output voltage IR1 ≥ 5 Id VO = VXX(1+R2/R1)+IdR2 Figure 20. Adjustable output regulator (7 to 30 V) 31/56 Typical performance Figure 21. 0.5 to 10 V regulator VO=VXXR4/R1 Figure 22. High current voltage regulator VBEQ1 R1 = ______________ IREQ-(IQ1/βQ1) VBEQ1 IO = IREG + Q1 (IREG ______) R1 Figure 23. High output current with short circuit protection RSC=VBEQ2/ISC 32/56 L78xx - L78xxC L78xx - L78xxC Typical performance Figure 24. Tracking voltage regulator Figure 25. Split power supply (± 15 V - 1 A) * Against potential latch-up problems. 33/56 Typical performance Figure 26. Negative output voltage circuit Figure 27. Switching regulator Figure 28. High input voltage circuit VIN = VI - (VZ + VBE) 34/56 L78xx - L78xxC L78xx - L78xxC Typical performance Figure 29. High input voltage circuit Figure 30. High output voltage regulator Figure 31. High input and output voltage VO = VXX + VZ1 35/56 Typical performance Figure 32. Reducing power dissipation with dropping resistor VI(min)-VXX-VDROP(max) R = ____________________ IO(max)+Id(max) Figure 33. Remote shutdown Figure 34. Power AM modulator (unity voltage gain, IO ≤0.5) Note: 36/56 The circuit performs well up to 100 kHz. L78xx - L78xxC L78xx - L78xxC Typical performance Figure 35. Adjustable output voltage with temperature compensation VO = VXX (1+R2/R1) + VBE Note: Q2 is connected as a diode in order to compensate the variation of the Q1 VBE with the temperature. C allows a slow rise time of the VO. Figure 36. Light controllers (VOmin = VXX + VBE) VO falls when the light goes up VO rises when the light goes up 37/56 Typical performance L78xx - L78xxC Figure 37. Protection against input short-circuit with high capacitance loads 1. Application with high capacitance loads and an output voltage greater than 6 volts need an external diode (see Figure 32 on page 36) to protect the device against input short circuit. In this case the input voltage falls rapidly while the output voltage decrease slowly. The capacitance discharges by means of the BaseEmitter junction of the series pass transistor in the regulator. If the energy is sufficiently high, the transistor may be destroyed. The external diode by-passes the current from the IC to ground. 38/56 L78xx - L78xxC 7 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. 39/56 Package mechanical data L78xx - L78xxC Figure 38. Drawing dimension TO-220 (type SMIC-subcon.) 0015988/F 40/56 L78xx - L78xxC Package mechanical data Figure 39. Drawing dimension TO-220 (type STD-ST) 0015988/A 41/56 Package mechanical data Table 24. L78xx - L78xxC TO-220 mechanical data Dim. Min. Type STD-ST Type SMIC-Subcon. mm. mm. Typ. Max. Min. Typ. Max. A 4.40 4.60 4.47 4.57 4.67 A1 0.61 0.88 0.80 0.81 0.86 b1 1.14 1.70 1.15 c 0.49 0.70 0.56 c1 D 0.38 15.25 D1 15.75 15.07 15.24 15.45 1.27 E 10.00 10.40 10 10.15 10.30 e 2.40 2.70 2.29 2.54 2.79 e1 4.95 5.15 4.83 5.08 5.33 F 1.23 1.32 1.27 H1 6.20 6.60 6.24 J1 2.40 2.72 2.04 2.67 2.92 L 13.00 14.00 13.35 13.50 13.65 L1 3.50 3.93 L20 16.40 L30 28.90 3.90 16.25 16.40 16.55 28.74 ∅P 3.75 3.85 Q 2.65 2.95 Note: 42/56 1.44 3.83 2.72 2.74 In spite of some difference in tolerances, the packages are compatible. 2.80 L78xx - L78xxC Package mechanical data Figure 40. Drawing dimension TO-220FP 7012510A-H 43/56 Package mechanical data Table 25. L78xx - L78xxC TO-220FP mechanical data mm. inch. Dim. Min. Typ. Max. Min. Typ. Max. A 4.40 4.60 0.173 0.181 B 2.5 2.7 0.098 0.106 D 2.5 2.75 0.098 0.108 E 0.45 0.70 0.017 0.027 F 0.75 1 0.030 0.039 F1 1.15 1.50 0.045 0.059 F2 1.15 1.50 0.045 0.059 G 4.95 5.2 0.194 0.204 G1 2.4 2.7 0.094 0.106 H 10.0 10.40 0.393 0.409 L2 16 0.630 L3 28.6 30.6 1.126 1.204 L4 9.8 10.6 0.385 0.417 L5 2.9 3.6 0.114 0.142 L6 15.9 16.4 0.626 0.645 L7 9 9.3 0.354 0.366 DIA. 3 3.2 0.118 0.126 44/56 L78xx - L78xxC Package mechanical data Figure 41. Drawing dimension TO-3 A P D C O N B V U E G R P003C/C Table 26. TO-3 mechanical data mm. inch. Dim. Min. A B Typ. Max. Min. 11.85 0.96 1.05 Typ. Max. 0.466 1.10 0.037 0.041 0.043 C 1.70 0.066 D 8.7 0.342 E 20.0 0.787 G 10.9 0.429 N 16.9 0.665 P R 26.2 3.88 4.09 U V 1.031 0.152 0.161 39.5 30.10 1.555 1.185 45/56 Package mechanical data L78xx - L78xxC Figure 42. Drawing dimension DPAK 0068772-F 46/56 L78xx - L78xxC Table 27. Package mechanical data DPAK mechanical data mm. inch. Dim. Min. Typ. Max. Min. Typ. Max. A 2.2 2.4 0.086 0.094 A1 0.9 1.1 0.035 0.043 A2 0.03 0.23 0.001 0.009 B 0.64 0.9 0.025 0.035 b4 5.2 5.4 0.204 0.212 C 0.45 0.6 0.017 0.023 C2 0.48 0.6 0.019 0.023 D 6 6.2 0.236 0.244 D1 E 5.1 6.4 0.200 6.6 0.252 0.260 E1 4.7 0.185 e 2.28 0.090 e1 4.4 4.6 0.173 0.181 H 9.35 10.1 0.368 0.397 L 1 0.039 (L1) 2.8 0.110 L2 0.8 0.031 L4 0.6 R V2 1 0.023 0.2 0° 0.039 0.008 8° 0° 8° 47/56 Package mechanical data L78xx - L78xxC Figure 43. Drawing dimension tape and reel for DPAK Table 28. Tape and reel DPAK mechanical data mm. inch. Dim. Min. Typ. A Min. Typ. 330 13.0 13.2 Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 48/56 Max. 0.504 0.512 22.4 0.519 0.882 Ao 6.80 6.90 7.00 0.268 0.272 0.2.76 Bo 10.40 10.50 10.60 0.409 0.413 0.417 Ko 2.55 2.65 2.75 0.100 0.104 0.105 Po 3.9 4.0 4.1 0.153 0.157 0.161 P 7.9 8.0 8.1 0.311 0.315 0.319 L78xx - L78xxC Package mechanical data Figure 44. Drawing dimension D²PAK (type STD-ST) 0079457/L 49/56 Package mechanical data L78xx - L78xxC Figure 45. Drawing dimension D²PAK (type WOOSEOK-Subcon.) 0079457/L 50/56 L78xx - L78xxC Table 29. Package mechanical data D²PAK mechanical data Dim. Min. TYPE WOOSEOK-Subcon. mm. mm. Typ. Max. Min. Typ. Max. A 4.40 4.60 4.30 4.70 A1 0.03 0.23 0 0.20 b 0.70 0.93 0.70 0.90 b2 1.14 1.70 1.17 1.37 c 0.45 0.60 0.45 0.50 0.60 c2 1.23 1.36 1.25 1.30 1.40 D 8.95 9.35 9 9.20 9.40 D1 7.50 E 10 E1 8.50 e 7.50 10.40 9.80 10.20 7.50 2.54 2.54 e1 4.88 5.28 H 15 15.85 15 J1 2.49 2.69 2.20 2.60 L 2.29 2.79 1.79 2.79 L1 1.27 1.40 1 1.40 L2 1.30 1.75 1.20 1.60 R V2 Note: TYPE STD-ST 5.08 0.4 0° 15.30 15.60 0.30 8° 0° 3° The D²PAK package coming from the subcontractor Wooseok is fully compatible with the ST's package suggested footprint. 51/56 Package mechanical data L78xx - L78xxC Figure 46. D²PAK footprint recommended data Table 30. D²PAK footprint data Values 52/56 Dim. mm. inch. A 12.20 0.480 B 9.75 0.384 C 16.90 0.665 D 3.50 0.138 E 1.60 0.063 F 2.54 0.100 G 5.08 0.200 L78xx - L78xxC Table 31. Package mechanical data Tape and reel D²PAK mechanical data mm. inch. Dim. Min. Typ. A Max. Min. Typ. 180 13.0 7.086 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 Max. 0.504 0.512 14.4 0.519 0.567 Ao 10.50 10.6 10.70 0.413 0.417 0.421 Bo 15.70 15.80 15.90 0.618 0.622 0.626 Ko 4.80 4.90 5.00 0.189 0.193 0.197 Po 3.9 4.0 4.1 0.153 0.157 0.161 P 11.9 12.0 12.1 0.468 0.472 0.476 Figure 47. Drawing dimension tape and reel for D²PAK 53/56 Order codes L78xx - L78xxC 8 Order codes Table 32. Order codes Order codes Part numbers TO-220 DPAK D2PAK TO-220FP L7805 TO-3 L7805T L7805C L7805CV L7805CDT-TR L7805CD2T-TR L7806C L7806CV L7806CD2T-TR L7808C L7808CV L7808CD2T-TR L7805CT L7806CT L7808CP L7885CP (1) L7885CT (1) L7885C L7885CV L7809C L7809CV L7809CD2T-TR L7809CP L7812C L7812CV L7812CD2T-TR L7812CP L7812CT L7815C L7815CV L7815CD2T-TR L7815CP L7815CT L7818C L7818CV L7824C L7824CV 1. Available on request. 54/56 L7885CD2T-TR (1) L7805CP L7818CD2T-TR (1) L7824CD2T-TR L7818CT L7824CP L7824CT L78xx - L78xxC Revision history 9 Revision history Table 33. Document revision history Date Revision Changes 21-Jun-2004 12 Document updating. 03-Aug-2006 13 Order codes has been updated and new template. 19-Jan-2007 14 D2PAK mechanical data has been updated and add footprint data. 31-May-2007 15 Order codes has been updated. 29-Aug-2007 16 Added Table 1 in cover page. 11-Dec-2007 17 Modified: Table 32. 06-Feb-2008 18 Added: TO-220 mechanical data Figure 38 on page 40, Figure 39 on page 41 and Table 24 on page 42. Modified: Table 32 on page 54. 18-Mar-2008 19 Added: Table 27: DPAK mechanical data on page 47., Table 28: Tape and reel DPAK mechanical data on page 48. Modified: Table 32 on page 54. 55/56 L78xx - L78xxC Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK. Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. © 2008 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 56/56