L78xx, L78xxC L78xxAB, L78xxAC Positive voltage regulator ICs Datasheet − production data Features ■ Output current up 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 ■ 2 % output voltage tolerance (A version) ■ Guaranteed in extended temperature range (A version) TO-220 TO-220FP Description The L78xx series of three-terminal positive regulators is available in TO-220, TO-220FP, TO3, D²PAK and DPAK packages and several fixed output voltages, making it useful in a wide range of applications. TO-3 DPAK D²PAK These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. Each type employs internal current limiting, thermal shutdown 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. Device summary Part numbers L7805 L7806AC L7809AB L7815AB L7805C L7808C L7809AC L7815AC L7805AB L7808AB L7812C L7818C L7805AC L7808AC L7812AB L7824C L7806C L7885C L7812AC L7824AB L7806AB L7809C L7815C L7824AC September 2012 This is information on a product in full production. Doc ID 2143 Rev 30 1/57 www.st.com 57 Contents L78xx, L78xxC, L78xxAB, L78xxAC Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 6.1 Design consideration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 7 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 9 Order codes 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 2/57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC List of tables 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. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Electrical characteristics of L7805 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Electrical characteristics of L7805A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Electrical characteristics of L7806A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Electrical characteristics of L7808A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Electrical characteristics of L7809A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Electrical characteristics of L7812A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Electrical characteristics of L7815A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Electrical characteristics of L7824A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Electrical characteristics of L7805C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Electrical characteristics of L7806C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Electrical characteristics of L7808C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Electrical characteristics of L7885C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Electrical characteristics of L7809C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Electrical characteristics of L7810C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Electrical characteristics of L7812C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Electrical characteristics of L7815C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Electrical characteristics of L7818C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Electrical characteristics of L7820C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Electrical characteristics of L7824C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 TO-220 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Doc ID 2143 Rev 30 3/57 List of figures L78xx, L78xxC, L78xxAB, L78xxAC 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. Figure 48. Figure 49. 4/57 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 DC parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Load regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Ripple rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Fixed output regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Current regulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Circuit for increasing output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Adjustable output regulator (7 to 30 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 0.5 to 10 V regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 High current voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 High output current with short circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Tracking voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Split power supply (± 15 V - 1 A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Negative output voltage circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Switching regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 High input voltage circuit (configuration 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 High input voltage circuit (configuration 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 High output voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 High input and output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Reducing power dissipation with dropping resistor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Remote shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Power AM modulator (unity voltage gain, IO ≤ 0.5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Adjustable output voltage with temperature compensation . . . . . . . . . . . . . . . . . . . . . . . . 35 Light controllers (VO(min) = VXX + VBE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Protection against input short-circuit with high capacitance loads . . . . . . . . . . . . . . . . . . . 36 Dropout voltage vs. junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Peak output current vs. input/output differential voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Output voltage vs. junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Output impedance vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Quiescent current vs. junction temp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Load transient response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Line transient response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Quiescent current vs. input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Drawing dimension TO-220 (type STD-ST Dual Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Drawing dimension TO-220 (type STD-ST Single Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . 41 Drawing dimension tube for TO-220 Dual Gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Drawing dimension tube for TO-220 Single Gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . 42 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 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC 1 Diagram Figure 1. Block diagram Diagram Doc ID 2143 Rev 30 5/57 Pin configuration L78xx, L78xxC, L78xxAB, L78xxAC 2 Pin configuration Figure 2. Pin connections (top view) TO-220 D²PAK (Any Type) Figure 3. 6/57 TO-220FP DPAK Schematic diagram Doc ID 2143 Rev 30 TO-3 L78xx, L78xxC, L78xxAB, L78xxAC 3 Maximum ratings Table 2. Absolute maximum ratings Symbol Maximum ratings 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 V Storage temperature range -65 to 150 for L78xx TOP °C -55 to 150 Operating junction temperature range for L78xxC, L78xxAC 0 to 125 for L78xxAB °C -40 to 125 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 Doc ID 2143 Rev 30 7/57 Test circuits 4 Test circuits Figure 5. DC parameter Figure 6. Load regulation Figure 7. Ripple rejection 8/57 L78xx, L78xxC, L78xxAB, L78xxAC Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC 5 Electrical characteristics Electrical characteristics 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. Table 4. Symbol Electrical characteristics of L7805 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, 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. Doc ID 2143 Rev 30 9/57 Electrical characteristics L78xx, L78xxC, L78xxAB, L78xxAC VI = 10 V, IO = 1 A, TJ = 0 to 125 °C (L7805AC), TJ = -40 to 125 °C (L7805AB), unless otherwise specified. Table 5. Symbol Electrical characteristics of L7805A Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 4.9 5 5.1 V VO Output voltage IO = 5 mA to 1 A, VI = 7.5 to 18 V 4.8 5 5.2 V VO Output voltage IO = 1 A, VI = 18 to 20 V, TJ = 25°C 4.8 5 5.2 V VI = 7.5 to 25 V, IO = 500 mA, TJ = 25°C 7 50 mV VI = 8 to 12 V 10 50 mV VI = 8 to 12 V, TJ = 25°C 2 25 mV VI = 7.3 to 20 V, TJ = 25°C 7 50 mV IO = 5 mA to 1 A 25 100 IO = 5 mA to 1.5 A, TJ = 25°C 30 100 IO = 250 to 750 mA 8 50 4.3 6 mA 6 mA VI = 8 to 23 V, IO = 500 mA 0.8 mA VI = 7.5 to 20 V, TJ = 25°C 0.8 mA IO = 5 mA to 1 A 0.5 mA ΔVO (1) ΔVO (1) Iq ΔIq SVR Line regulation Load regulation Quiescent current Quiescent current change TJ = 25°C mV Supply voltage rejection VI = 8 to 18 V, f = 120 Hz, IO = 500 mA 68 dB Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V eN Output noise voltage TA = 25°C, B =10 Hz to 100 kHz 10 µV/VO RO Output resistance f = 1 kHz 17 mΩ Isc Short circuit current VI = 35 V, TA = 25°C 0.2 A Iscp Short circuit peak current TJ = 25°C 2.2 A -1.1 mV/°C ΔVO/ΔT Output voltage drift 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. 10/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Electrical characteristics VI = 11 V, IO = 1 A, TJ = 0 to 125 °C (L7806AC), TJ = -40 to 125 °C (L7806AB), unless otherwise specified. Table 6. Symbol Electrical characteristics of L7806A Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 5.88 6 6.12 V VO Output voltage IO = 5 mA to 1 A, VI = 8.6 to 19 V 5.76 6 6.24 V VO Output voltage IO = 1 A, VI = 19 to 21 V, TJ = 25°C 5.76 6 6.24 V VI = 8.6 to 25 V, IO = 500 mA, TJ = 25°C 9 60 mV VI = 9 to 13 V 11 60 mV VI = 9 to 13 V, TJ = 25°C 3 30 mV VI = 8.3 to 21 V, TJ = 25°C 9 60 mV IO = 5 mA to 1 A 25 100 IO = 5 mA to 1.5 A, TJ = 25°C 30 100 IO = 250 to 750 mA 10 50 TJ = 25°C 4.3 6 mA 6 mA VI = 9 to 24 V, IO = 500 mA 0.8 mA VI = 8.6 to 21 V, TJ = 25°C 0.8 mA IO = 5 mA to 1 A 0.5 mA ΔVO (1) ΔVO (1) Iq ΔIq SVR Line regulation Load regulation Quiescent current Quiescent current change mV Supply voltage rejection VI = 9 to 19 V, f = 120 Hz, IO = 500 mA 65 dB Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V eN Output noise voltage TA = 25°C, B =10 Hz to 100 kHz 10 µV/VO RO Output resistance f = 1 kHz 17 mΩ Isc Short circuit current VI = 35 V, TA = 25°C 0.2 A Iscp Short circuit peak current TJ = 25°C 2.2 A -0.8 mV/°C ΔVO/ΔT Output voltage drift 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. Doc ID 2143 Rev 30 11/57 Electrical characteristics L78xx, L78xxC, L78xxAB, L78xxAC VI = 14 V, IO = 1 A, TJ = 0 to 125 °C (L7808AC), TJ = -40 to 125 °C (L7808AB), unless otherwise specified. Table 7. Symbol Electrical characteristics of L7808A Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 7.84 8 8.16 V VO Output voltage IO = 5 mA to 1 A, VI = 10.6 to 21 V 7.7 8 8.3 V VO Output voltage IO = 1 A, VI = 21 to 23 V, TJ = 25°C 7.7 8 8.3 V VI = 10.6 to 25 V, IO = 500 mA, TJ = 25°C 12 80 mV VI = 11 to 17 V 15 80 mV VI = 11 to 17 V, TJ = 25°C 5 40 mV VI = 10.4 to 23 V, TJ = 25°C 12 80 mV IO = 5 mA to 1 A 25 100 IO = 5 mA to 1.5 A, TJ = 25°C 30 100 IO = 250 to 750 mA 10 50 TJ = 25°C 4.3 6 mA 6 mA VI = 11 to 23 V, IO = 500 mA 0.8 mA VI = 10.6 to 23 V, TJ = 25°C 0.8 mA IO = 5 mA to 1 A 0.5 mA ΔVO (1) ΔVO (1) Iq ΔIq Line regulation Load regulation Quiescent current Quiescent current change mV Supply voltage rejection VI = 11.5 to 21.5 V, f = 120 Hz, IO = 500 mA 62 dB Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V eN Output noise voltage TA = 25°C, B =10 Hz to 100 kHz 10 µV/VO RO Output resistance f = 1 kHz 18 mΩ Isc Short circuit current VI = 35 V, TA = 25°C 0.2 A Iscp Short circuit peak current TJ = 25°C 2.2 A -0.8 mV/°C SVR ΔVO/ΔT Output voltage drift 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. 12/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Electrical characteristics VI = 15 V, IO = 1 A, TJ = 0 to 125 °C (L7809AC), TJ = -40 to 125 °C (L7809AB), unless otherwise specified. Table 8. Symbol Electrical characteristics of L7809A Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 8.82 9 9.18 V VO Output voltage IO = 5 mA to 1 A, VI = 10.6 to 22 V 8.65 9 9.35 V VO Output voltage IO = 1 A, VI = 22 to 24 V, TJ = 25°C 8.65 9 9.35 V VI = 10.6 to 25 V, IO = 500 mA, TJ = 25°C 12 90 mV VI = 11 to 17 V 15 90 mV VI = 11 to 17 V, TJ = 25°C 5 45 mV VI = 11.4 to 23 V, TJ = 25°C 12 90 mV IO = 5 mA to 1 A 25 100 IO = 5 mA to 1.5 A, TJ = 25°C 30 100 IO = 250 to 750 mA 10 50 TJ = 25°C 4.3 6 mA 6 mA VI = 11 to 25 V, IO = 500 mA 0.8 mA VI = 10.6 to 23 V, TJ = 25°C 0.8 mA IO = 5 mA to 1 A 0.5 mA ΔVO (1) ΔVO (1) Iq ΔIq Line regulation Load regulation Quiescent current Quiescent current change mV Supply voltage rejection VI = 11.5 to 21.5 V, f = 120 Hz, IO = 500 mA 61 dB Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V eN Output noise voltage TA = 25°C, B =10 Hz to 100 kHz 10 µV/VO RO Output resistance f = 1 kHz 18 mΩ Isc Short circuit current VI = 35 V, TA = 25°C 0.2 A Iscp Short circuit peak current TJ = 25°C 2.2 A -0.8 mV/°C SVR ΔVO/ΔT Output voltage drift 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. Doc ID 2143 Rev 30 13/57 Electrical characteristics L78xx, L78xxC, L78xxAB, L78xxAC VI = 19 V, IO = 1 A, TJ = 0 to 125 °C (L7812AC), TJ = -40 to 125 °C (L7812AB), unless otherwise specified. Table 9. Symbol Electrical characteristics of L7812A Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 11.75 12 12.25 V VO Output voltage IO = 5 mA to 1 A, VI = 14.8 to 25 V 11.5 12 12.5 V VO Output voltage IO = 1 A, VI = 25 to 27 V, TJ = 25°C 11.5 12 12.5 V VI = 14.8 to 30 V, IO = 500 mA, TJ = 25°C 13 120 mV VI = 16 to 12 V 16 120 mV VI = 16 to 12 V, TJ = 25°C 6 60 mV VI = 14.5 to 27 V, TJ = 25°C 13 120 mV IO = 5 mA to 1 A 25 100 IO = 5 mA to 1.5 A, TJ = 25°C 30 100 IO = 250 to 750 mA 10 50 TJ = 25°C 4.4 6 mA 6 mA VI = 15 to 30 V, IO = 500 mA 0.8 mA VI = 14.8 to 27 V, TJ = 25°C 0.8 mA IO = 5 mA to 1 A 0.5 mA ΔVO (1) ΔVO (1) Iq ΔIq SVR Line regulation Load regulation Quiescent current Quiescent current change mV Supply voltage rejection VI = 15 to 25 V, f = 120 Hz, IO = 500 mA 60 dB Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V eN Output noise voltage TA = 25°C, B = 10 Hz to 100 kHz 10 µV/VO RO Output resistance f = 1 kHz 18 mΩ Isc Short circuit current VI = 35 V, TA = 25°C 0.2 A Iscp Short circuit peak current TJ = 25°C 2.2 A -1 mV/°C ΔVO/ΔT Output voltage drift 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. 14/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Electrical characteristics VI = 23 V, IO = 1 A, TJ = 0 to 125 °C (L7815AC), TJ = -40 to 125 °C (L7815AB), unless otherwise specified. Table 10. Symbol Electrical characteristics of L7815A Parameter Test conditions Min. Typ. Max. Unit VO Output voltage TJ = 25°C 14.7 15 15.3 V VO Output voltage IO = 5 mA to 1 A, VI = 17.9 to 28 V 14.4 15 15.6 V VO Output voltage IO = 1 A, VI = 28 to 30 V, TJ = 25°C 14.4 15 15.6 V VI = 17.9 to 30 V, IO = 500 mA, TJ = 25°C 13 150 mV VI = 20 to 26 V 16 150 mV VI = 20 to 26 V, TJ = 25°C 6 75 mV VI = 17.5 to 30 V, TJ = 25°C 13 150 mV IO = 5 mA to 1 A 25 100 IO = 5 mA to 1.5 A, TJ = 25°C 30 100 IO = 250 to 750 mA 10 50 TJ = 25°C 4.4 6 mA 6 mA VI = 17.5 to 30 V, IO = 500 mA 0.8 mA VI = 17.5 to 30 V, TJ = 25°C 0.8 mA IO = 5 mA to 1 A 0.5 mA ΔVO (1) ΔVO (1) Iq ΔIq Line regulation Load regulation Quiescent current Quiescent current change mV Supply voltage rejection VI = 18.5 to 28.5 V, f = 120 Hz, IO = 500 mA 58 dB Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V eN Output noise voltage TA = 25°C, B = 10Hz to 100 kHz 10 µV/VO RO Output resistance f = 1 kHz 19 mΩ Isc Short circuit current VI = 35 V, TA = 25°C 0.2 A Iscp Short circuit peak current TJ = 25°C 2.2 A -1 mV/°C SVR ΔVO/ΔT Output voltage drift 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. Doc ID 2143 Rev 30 15/57 Electrical characteristics L78xx, L78xxC, L78xxAB, L78xxAC VI = 33 V, IO = 1 A, TJ = 0 to 125 °C (L7824AC), TJ = -40 to 125 °C (L7824AB), unless otherwise specified. Table 11. Symbol Electrical characteristics of L7824A Parameter Test conditions Min. Typ. Max. Unit 23.5 24 24.5 V VO Output voltage TJ = 25°C VO Output voltage IO = 5 mA to 1 A, VI = 27.3 to 37 V 23 24 25 V VO Output voltage IO = 1 A, VI = 37 to 38 V, TJ = 25°C 23 24 25 V VI = 27 to 38 V, IO = 500 mA, TJ = 25°C 31 240 mV VI = 30 to 36 V 35 200 mV VI = 30 to 36 V, TJ = 25°C 14 120 mV VI = 26.7 to 38 V, TJ = 25°C 31 240 mV IO = 5 mA to 1 A 25 100 IO = 5 mA to 1.5 A, TJ = 25°C 30 100 IO = 250 to 750 mA 10 50 TJ = 25°C 4.6 6 mA 6 mA VI = 27.3 to 38 V, IO = 500 mA 0.8 mA VI = 27.3 to 38 V, TJ = 25°C 0.8 mA IO = 5 mA to 1 A 0.5 mA ΔVO (1) ΔVO (1) Iq ΔIq SVR Line regulation Load regulation Quiescent current Quiescent current change mV Supply voltage rejection VI = 28 to 38 V, f = 120 Hz, IO = 500 mA 54 dB Vd Dropout voltage IO = 1 A, TJ = 25°C 2 V eN Output noise voltage TA = 25°C, B = 10 Hz to 100 kHz 10 µV/VO RO Output resistance f = 1 kHz 20 mΩ Isc Short circuit current VI = 35 V, TA = 25°C 0.2 A Iscp Short circuit peak current TJ = 25°C 2.2 A -1.5 mV/°C ΔVO/ΔT Output voltage drift 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. 16/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Electrical characteristics Refer to the test circuits, TJ = 0 to 125 °C, VI = 10 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified. Table 12. Symbol Electrical characteristics of L7805C 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, VI = 7 to 18 V 4.75 5 5.25 V VO Output voltage IO = 1 A, VI = 18 to 20V, TJ = 25°C 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 23 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. Doc ID 2143 Rev 30 17/57 Electrical characteristics L78xx, L78xxC, L78xxAB, L78xxAC Refer to the test circuits, TJ = 0 to 125 °C, VI = 11 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified. Table 13. Symbol Electrical characteristics of L7806C 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, VI = 8 to 19 V 5.7 6 6.3 V VO Output voltage IO = 1 A, VI = 19 to 21 V, TJ = 25°C 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 24 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. 18/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Electrical characteristics Refer to the test circuits, TJ = 0 to 125 °C, VI = 14 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified. Table 14. Symbol Electrical characteristics of L7808C 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, VI = 10.5 to 21 V 7.6 8 8.4 V VO Output voltage IO = 1 A, VI = 21 to 25 V, TJ = 25°C 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. Doc ID 2143 Rev 30 19/57 Electrical characteristics L78xx, L78xxC, L78xxAB, L78xxAC Refer to the test circuits, TJ = 0 to 125 °C, VI = 14.5 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified. Table 15. Symbol Electrical characteristics of L7885C 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, VI = 11 to 21.5 V 8.1 8.5 8.9 V VO Output voltage IO = 1 A, VI = 21.5 to 26 V, TJ = 25°C 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 26 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 22 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 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. 20/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Electrical characteristics Refer to the test circuits, TJ = 0 to 125 °C, VI = 15 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified. Table 16. Symbol Electrical characteristics of L7809C 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, VI = 11.5 to 22 V 8.55 9 9.45 V VO Output voltage IO = 1 A, VI = 22 to 26 V, TJ = 25°C 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. Doc ID 2143 Rev 30 21/57 Electrical characteristics L78xx, L78xxC, L78xxAB, L78xxAC Refer to the test circuits, TJ = 0 to 125 °C, VI = 15 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified. Table 17. Symbol Electrical characteristics of L7810C 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, VI = 12.5 to 23 V 9.5 10 10.5 V VO Output voltage IO = 1 A, VI = 23 to 26 V, TJ = 25°C 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. 22/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Electrical characteristics Refer to the test circuits, TJ = 0 to 125 °C, VI = 19 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified. Table 18. Symbol Electrical characteristics of L7812C 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, VI = 14.5 to 25 V 11.4 12 12.6 V VO Output voltage IO = 1 A, VI = 25 to 27 V, TJ = 25°C 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. Doc ID 2143 Rev 30 23/57 Electrical characteristics L78xx, L78xxC, L78xxAB, L78xxAC Refer to the test circuits, TJ = 0 to 125 °C, VI = 23 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified. Table 19. Symbol Electrical characteristics of L7815C 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, VI = 17.5 to 28 V 14.25 15 15.75 V VO Output voltage IO = 1 A, VI = 28 to 30 V, TJ = 25°C 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. 24/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Electrical characteristics Refer to the test circuits, TJ = 0 to 125 °C, VI = 26 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified. Table 20. Symbol Electrical characteristics of L7818C 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, VI = 21 to 31 V 17.1 18 18.9 V VO Output voltage IO = 1 A, VI = 31 to 33 V, TJ = 25°C 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. Doc ID 2143 Rev 30 25/57 Electrical characteristics L78xx, L78xxC, L78xxAB, L78xxAC Refer to the test circuits, TJ = 0 to 125 °C, VI = 28 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified. Table 21. Symbol Electrical characteristics of L7820C Parameter Test conditions Min. Typ. Max. Unit 19.2 20 20.8 V VO Output voltage TJ = 25°C VO Output voltage IO = 5 mA to 1 A, VI = 23 to 33 V 19 20 21 V VO Output voltage IO = 1 A, VI = 33 to 35 V, TJ = 25°C 19 20 21 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change 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. 26/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Electrical characteristics Refer to the test circuits, TJ = 0 to 125 °C, VI = 33 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified. Table 22. Symbol Electrical characteristics of L7824C Parameter Test conditions Min. Typ. Max. Unit 23 24 25 V VO Output voltage TJ = 25°C VO Output voltage IO = 5 mA to 1 A, VI = 27 to 37 V 22.8 24 25.2 V VO Output voltage IO = 1 A, VI = 37 to 38 V, TJ = 25°C 22.8 24 25.2 V ΔVO(1) Line regulation ΔVO(1) Load regulation Id ΔId ΔVO/ΔT Quiescent current Quiescent current change 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. Doc ID 2143 Rev 30 27/57 Application information L78xx, L78xxC, L78xxAB, L78xxAC 6 Application information 6.1 Design consideration The L78xx Series of fixed voltage regulators are designed with thermal overload protection that shuts down the circuit when subjected to an excessive power overload condition, internal short-circuit protection that limits the maximum current the circuit will pass, and output transistor safe-area compensation that reduces the output short-circuit current as the voltage across the pass transistor is increased. In many low current applications, compensation capacitors are not required. However, it is recommended that the regulator input be bypassed with capacitor if the regulator is connected to the power supply filter with long lengths, or if the output load capacitance is large. An input bypass capacitor should be selected to provide good high frequency characteristics to insure stable operation under all load conditions. A 0.33 µF or larger tantalum, mylar or other capacitor having low internal impedance at high frequencies should be chosen. The bypass capacitor should be mounted with the shortest possible leads directly across the regulators input terminals. Normally good construction techniques should be used to minimize ground loops and lead resistance drops since the regulator has no external sense lead. The addition of an operational amplifier allows adjustment to higher or intermediate values while retaining regulation characteristics. The minimum voltage obtained with the arrangement is 2 V greater than the regulator voltage. The circuit of Figure 13 can be modified to provide supply protection against short circuit by adding a short circuit sense resistor, RSC, and an additional PNP transistor. The current sensing PNP must be able to handle the short circuit current of the three terminal regulator Therefore a four ampere plastic power transistor is specified. Figure 8. 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. 28/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Figure 9. Application information Current regulator IO = VXX/R1+Id Figure 10. Circuit for increasing output voltage IR1 ≥ 5 Id VO = VXX(1+R2/R1)+IdR2 Figure 11. Adjustable output regulator (7 to 30 V) Doc ID 2143 Rev 30 29/57 Application information L78xx, L78xxC, L78xxAB, L78xxAC Figure 12. 0.5 to 10 V regulator VO=VXXR4/R1 Figure 13. High current voltage regulator VBEQ1 R1 = ______________ IREQ-(IQ1/bQ1) VBEQ1 IO = IREG + Q1 (IREG ______) R1 Figure 14. High output current with short circuit protection RSC=VBEQ2/ISC 30/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Application information Figure 15. Tracking voltage regulator Figure 16. Split power supply (± 15 V - 1 A) * Against potential latch-up problems. Doc ID 2143 Rev 30 31/57 Application information L78xx, L78xxC, L78xxAB, L78xxAC Figure 17. Negative output voltage circuit Figure 18. Switching regulator Figure 19. High input voltage circuit (configuration 1) VIN = VI - (VZ + VBE) 32/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Application information Figure 20. High input voltage circuit (configuration 2) Figure 21. High output voltage regulator Figure 22. High input and output voltage VO = VXX + VZ1 Doc ID 2143 Rev 30 33/57 Application information L78xx, L78xxC, L78xxAB, L78xxAC Figure 23. Reducing power dissipation with dropping resistor VI(min)-VXX-VDROP(max) R = ____________________ IO(max)+Id(max) Figure 24. Remote shutdown Figure 25. Power AM modulator (unity voltage gain, IO ≤ 0.5) Note: 34/57 The circuit performs well up to 100 kHz. Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Application information Figure 26. 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 27. Light controllers (VO(min) = VXX + VBE) VO rises when the light goes up VO falls when the light goes up Doc ID 2143 Rev 30 35/57 Application information L78xx, L78xxC, L78xxAB, L78xxAC Figure 28. Protection against input short-circuit with high capacitance loads Note: 36/57 Application with high capacitance loads and an output voltage greater than 6 volts need an external diode (see Figure 23 on page 34) 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 base-emitter 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. Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC 7 Typical performance Typical performance Figure 29. Dropout voltage vs. junction temperature Figure 30. Peak output current vs. input/output differential voltage Figure 31. Supply voltage rejection vs. frequency Figure 32. Output voltage vs. junction temperature Figure 33. Output impedance vs. frequency Figure 34. Quiescent current vs. junction temp. Doc ID 2143 Rev 30 37/57 Typical performance L78xx, L78xxC, L78xxAB, L78xxAC Figure 35. Load transient response Figure 36. Line transient response Figure 37. Quiescent current vs. input voltage 38/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC 8 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Table 23. TO-220 mechanical data Type STD - ST Dual Gauge Type STD - ST Single Gauge mm. mm. Dim. Min. Typ. Max. Min. Typ. Max. A 4.40 4.60 4.40 4.60 b 0.61 0.88 0.61 0.88 b1 1.14 1.70 1.14 1.70 c 0.48 0.70 0.48 0.70 D 15.25 15.75 15.25 15.75 D1 1.27 E 10.00 10.40 10.00 10.40 e 2.40 2.70 2.40 2.70 e1 4.95 5.15 4.95 5.15 F 1.23 1.32 0.51 0.60 H1 6.20 6.60 6.20 6.60 J1 2.40 2.72 2.40 2.72 L 13.00 14.00 13.00 14.00 L1 3.50 3.93 3.50 3.93 L20 16.40 16.40 L30 28.90 28.90 ∅P 3.75 3.85 3.75 3.85 Q 2.65 2.95 2.65 2.95 In spite of some difference in tolerances, the packages are compatible. Doc ID 2143 Rev 30 39/57 Package mechanical data L78xx, L78xxC, L78xxAB, L78xxAC Figure 38. Drawing dimension TO-220 (type STD-ST Dual Gauge) 0015988_S Note: 40/57 1 Maximum resin gate protrusion: 0.5 mm. 2 Resin gate position is accepted in each of the two positions shown on the drawing, or their symmetrical. Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Package mechanical data Figure 39. Drawing dimension TO-220 (type STD-ST Single Gauge) 8174627_B Doc ID 2143 Rev 30 41/57 Package mechanical data L78xx, L78xxC, L78xxAB, L78xxAC Figure 40. Drawing dimension tube for TO-220 Dual Gauge (mm.) Figure 41. Drawing dimension tube for TO-220 Single Gauge (mm.) 42/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Package mechanical data Figure 42. Drawing dimension TO-220FP 7012510A-H Doc ID 2143 Rev 30 43/57 Package mechanical data Table 24. L78xx, L78xxC, L78xxAB, L78xxAC 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 44/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Package mechanical data Figure 43. Drawing dimension TO-3 A P D C O N B V U E G R P003C/C Table 25. 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 Doc ID 2143 Rev 30 45/57 Package mechanical data L78xx, L78xxC, L78xxAB, L78xxAC Figure 44. Drawing dimension DPAK 0068772-F 46/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Table 26. 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° Doc ID 2143 Rev 30 8° 47/57 Package mechanical data L78xx, L78xxC, L78xxAB, L78xxAC Figure 45. Drawing dimension tape and reel for DPAK Table 27. 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 48/57 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 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Package mechanical data Figure 46. Drawing dimension D²PAK (type STD-ST) 0079457/L Doc ID 2143 Rev 30 49/57 Package mechanical data L78xx, L78xxC, L78xxAB, L78xxAC Figure 47. Drawing dimension D²PAK (type WOOSEOK-Subcon.) 0079457/L 50/57 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Table 28. D²PAK mechanical data Dim. Min. Type STD-ST 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: Package mechanical data 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. Doc ID 2143 Rev 30 51/57 Package mechanical data L78xx, L78xxC, L78xxAB, L78xxAC Figure 48. D²PAK footprint recommended data Table 29. D²PAK footprint data Values 52/57 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 Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Table 30. 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 49. Drawing dimension tape and reel for D²PAK Doc ID 2143 Rev 30 53/57 Order codes L78xx, L78xxC, L78xxAB, L78xxAC 9 Order codes Table 31. Order codes Order codes Part numbers TO-220 DPAK D²PAK TO-220FP L7805 L7805CV L7805C L7805CV-DG L7805CDT-TR L7805ABV L7805T 5V L7805CT 5V 5V L7805ABD2T-TR L7805ABV-DG 5V 5V L7805ACD2T-TR L7805ACV-DG L7805ABP (1) L7805ACV L7805AC L7805ACP 5V (1) L7806CV L7806CV-DG L7805CP Output voltages (1) L7805AB L7806C L7805CD2T-TR TO-3 5V L7806CD2T-TR L7806CT (1) L7806ABV 6V L7806ABD2T-TR L7806AB L7806ABV-DG 6V (1) 6V L7806ACV 6V L7806AC L7806ACV-DG (1) L7808CV L7808C L7808CV-DG L7808CD2T-TR L7808ABV L7808ABV-DG L7808ABD2T-TR L7809AC L7809ACV 8V 8V L7885CD2T-TR (2) L7809CD2T-TR L7885CP (2) L7885CT (2) L7809CP 9V L7812CD2T-TR L7812ABV L7812ABV-DG 9V 9V L7812CV-DG (1) L7812AB 8.5 V 9V L7809ABD2T-TR L7812CV L7812CP L7812CT 12 V 12 V L7812ABD2T-TR (1) L7812ACV 54/57 8V L7809CV-DG (1) L7809ABV L7812AC 8V (1) L7885CV L7809AB L7812C 8V (1) L7809CV L7809C 8V L7808ACV L7808ACV-DG L7885C 6V (1) L7808AB L7808AC 6V 12 V 12 V L7812ACD2T-TR L7812ACV-DG (1) 12 V 12 V Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Table 31. Order codes Order codes Order codes Part numbers TO-220 DPAK L7815CV L7815C L7815ABV Output voltages L7815CD2T-TR L7815CP L7815CT 15 V 15 V 15 V (1) L7815ACV 15 V L7815ACD2T-TR 15 V L7815ACV-DG (1) L7818CV L7818C L7818CV-DG 15 V L7818CD2T-TR (2) L7818CT (1) L7824CV 18 V 18 V L7824CD2T-TR L7824CP L7824CT 24 V L7824CV-DG (1) 24 V L7824ABV 24 V L7824AB L7824ABV-DG L7824AC TO-3 L7815ABD2T-TR L7815ABV-DG L7824C TO-220FP L7815CV-DG (1) L7815AB L7815AC D²PAK (1) 24 V L7824ACV 24 V L7824ACV-DG (1) 24 V 1. TO-220 Dual Gauge frame. 2. Available on request. Doc ID 2143 Rev 30 55/57 Revision history L78xx, L78xxC, L78xxAB, L78xxAC 10 Revision history Table 32. Document revision history Date Revision 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 31. 06-Feb-2008 18 Added: TO-220 mechanical data Figure 38 on page 40 , Figure 39 on page 41, and Table 23 on page 39. Modified: Table 31 on page 54. 18-Mar-2008 19 Added: Table 26: DPAK mechanical data on page 47, Table 27: Tape and reel DPAK mechanical data on page 48. Modified: Table 31 on page 54. 26-Jan-2010 20 Modified Table 1 on page 1 and Table 23 on page 39, added: Figure 38 on page 40 and Figure 39 on page 41, Figure 40 on page 42 and Figure 41 on page 42. 04-Mar-2010 21 Added notes Figure 38 on page 40. 08-Sep-2010 22 Modified Table 31 on page 54. 23-Nov-2010 23 Added: TJ = 25 °C test condition in ΔVO on Table 5, 6, 7, 8, 9, 10 and Table 11. 16-Sep-2011 24 Modified title on page 1. 30-Nov-2011 25 Added: order codes L7805CV-DG, L7806CV-DG, L7808ABV-DG, L7812CVDG and L7815CV-DG Table 31 on page 54. 08-Feb-2012 26 Added: order codes L7805ACV-DG, L7805ABV-DG, L7806ABV-DG, L7808CVDG, L7809CV-DG, L7812ACV-DG, L7818CV-DG, L7824CV-DG Table 31 on page 54. 27-Mar-2012 27 Added: order codes L7812ABV-DG, L7815ABV-DG Table 31 on page 54. 27-Apr-2012 28 Modified: VI = 10.4 to 23 V ==> VI = 11.4 to 23 V test conditon value Line regulation Table 8 on page 13. 10-May-2012 29 Added: order codes L7806ACV-DG, L7808ACV-DG, L7815ACV-DG, L7824ABV-DG and L7824ACV-DG Table 31 on page 54. 19-Sep-2012 30 Modified load regulation units from V to mV in Table 5 to Table 11. 56/57 Changes Doc ID 2143 Rev 30 L78xx, L78xxC, L78xxAB, L78xxAC Please Read Carefully: Information in this document is provided solely in connection with ST products. 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