L78LxxAB L78LxxAC - L78LxxC Positive voltage regulators Features ■ Output current up to 100 mA ■ Output voltages of 3.3; 5; 6; 8; 9; 10; 12; 15; 18; 24 V ■ Thermal overload protection ■ Short circuit protection ■ No external components are required ■ Available in either ±5% (AC) or ±10% (C) selection TO-92 Description SO-8 The L78Lxx series of three-terminal positive regulators employ internal current limiting and thermal shutdown, making them essentially indestructible. If adequate heat-sink is provided, they can deliver up to 100 mA output current. They are intended as fixed voltage regulators in a wide range of applications including local or oncard regulation for elimination of noise and distribution problems associated with single-point regulation. Table 1. SOT-89 In addition, they can be used with power pass elements to make high-current voltage regulators. The L78Lxx series used as Zener diode/resistor combination replacement, offers an effective output impedance improvement of typically two orders of magnitude, along with lower quiescent current and lower noise. Device summary Part numbers August 2008 L78L33C L78L08AC L78L15C L78L33AC L78L08AB L78L15AC L78L33AB L78L09C L78L15AB L78L05C L78L09AC L78L18C L78L05AC L78L09AB L78L18AC L78L05AB L78L10AC L78L24C L78L06AC L78L12C L78L24AC L78L06AB L78L12AC L78L24AB L78L08C L78L12AB Rev 16 1/29 www.st.com 29 Contents L78LxxAB - L78LxxAC - L78LxxC Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 6 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 8 Order codes 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 2/29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 L78LxxAB - L78LxxAC - L78LxxC 1 Diagram Figure 1. Schematic diagram Diagram 3/29 Pin configuration L78LxxAB - L78LxxAC - L78LxxC 2 Pin configuration Figure 2. Pin connection (top view, bottom view for TO-92) PIN 1 = VOUT PIN 2 = GND PIN 3 = VIN SO-8 Figure 3. 4/29 Test circuits SOT-89 TO-92 L78LxxAB - L78LxxAC - L78LxxC 3 Maximum ratings Table 2. Absolute maximum ratings Symbol VI Maximum ratings Parameter DC Input voltage IO Output current PD Power dissipation TSTG Storage temperature range TOP Operating junction temperature range Value VO= 3.3 to 9 V 30 VO= 12 to 15 V 35 VO= 18 to 24 V 40 Unit V 100 mA Internally limited (1) mW -65 to 150 °C for L78L00AC 0 to 150 for L78L00AB -40 to 125 °C 1. Our SO-8 package used for voltage regulators is modified internally to have pins 2, 3, 6 and 7 electrically communed to the die attach flag. This particular frame decreases the total thermal resistance of the package and increases its ability to dissipate power when an appropriate area of copper on the printed circuit board is available for heat-sinking. The external dimensions are the same as for the standard SO-8. Table 3. Symbol RthJC RthJA 1. Thermal data Parameter Thermal resistance junction-case. (Max) Thermal resistance junction-ambient. (Max) SO-8 TO-92 20 55 (1) 200 SOT-89 Unit 15 °C/W °C/W Considering 6 cm2 of copper Board heat-sink. 5/29 Electrical characteristics L78LxxAB - L78LxxAC - L78LxxC 4 Electrical characteristics Table 4. Electrical characteristics of L78L33C (refer to the test circuits, TJ = 0 to 125°C, VI = 8.3 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Symbol Parameter VO Output voltage VO Output voltage ΔVO Line regulation ΔVO Load regulation Id Quiescent current Test conditions Min. Typ. Max. Unit TJ = 25°C 3.036 3.3 3.564 V IO = 1 to 40 mA, VI = 5.3 to 20 V 2.97 3.63 IO = 1 to 70 mA, VI = 8.3 V 2.97 3.63 VI = 5.3 to 20 V, TJ = 25°C 150 VI = 6.3 to 20 V, TJ = 25°C 100 IO = 1 to 100 mA, TJ = 25°C 60 IO = 1 to 40 mA, TJ = 25°C 30 TJ = 25°C 6 mA TJ = 125°C 5.5 mA IO = 1 to 40 mA 0.2 VI = 6.3 to 20 V 1.5 ΔId Quiescent current change eN Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 6.3 to 16.3 V, f = 120 Hz IO = 40 mA, TJ = 25°C SVR Vd 6/29 Dropout voltage V mV mV mA 41 40 µV 49 dB 1.7 V L78LxxAB - L78LxxAC - L78LxxC Table 5. Symbol Electrical characteristics of L78L05C (refer to the test circuits, TJ = 0 to 125°C, VI = 10 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter VO Output voltage VO Output voltage ΔVO Line regulation ΔVO Load regulation Id Electrical characteristics Quiescent current Test conditions Min. Typ. Max. Unit TJ = 25°C 4.6 5 5.4 V IO = 1 to 40 mA, VI = 7 to 20 V 4.5 5.5 IO = 1 to 70 mA, VI = 10 V 4.5 5.5 VI = 8.5 to 20 V, TJ = 25°C 200 VI = 9 to 20 V, TJ = 25°C 150 IO = 1 to 100 mA, TJ = 25°C 60 IO = 1 to 40 mA, TJ = 25°C 30 TJ = 25°C 6 mA TJ = 125°C 5.5 mA IO = 1 to 40 mA 0.2 VI = 8 to 20 V 1.5 ΔId Quiescent current change eN Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 9 to 20 V, f = 120 Hz IO = 40 mA, TJ = 25°C SVR Vd Table 6. Symbol Parameter VO Output voltage ΔVO Line regulation ΔVO Load regulation Quiescent current Test conditions mA 40 40 µV 49 dB 1.7 V Min. Typ. Max. Unit TJ = 25°C 7.36 8 8.64 V IO = 1 to 40 mA, VI = 8.5 to 20 V 7.2 8.8 IO = 1 to 70 mA, VI = 12 V 7.2 8.8 200 VI = 9 to 20 V, TJ = 25°C 150 IO = 1 to 100 mA, TJ = 25°C 80 IO = 1 to 40 mA, TJ = 25°C 40 TJ = 25°C 6 mA TJ = 125°C 5.5 mA IO = 1 to 40 mA 0.2 VI = 8 to 20 V 1.5 Quiescent current change eN Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 9 to 20 V, f = 120 Hz IO = 40 mA, TJ = 25°C Dropout voltage V VI = 8.5 to 20 V, TJ = 25°C ΔId Vd mV Electrical characteristics of L78L08C (refer to the test circuits, TJ = 0 to 125°C, VI = 14 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Output voltage SVR mV Dropout voltage VO Id V mV mV mA 36 60 µV 45 dB 1.7 V 7/29 Electrical characteristics Table 7. Symbol Electrical characteristics of L78L09C (refer to the test circuits, TJ = 0 to 125°C, VI = 15 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter VO Output voltage VO Output voltage ΔVO Line regulation ΔVO Load regulation Id L78LxxAB - L78LxxAC - L78LxxC Quiescent current Test conditions Min. Typ. Max. Unit TJ = 25°C 8.28 9 9.72 V IO = 1 to 40 mA, VI = 11.5 to 23 V 8.1 9.9 IO = 1 to 70 mA, VI = 15 V 8.1 9.9 VI = 11.5 to 23 V, TJ = 25°C 250 VI = 12 to 23 V, TJ = 25°C 200 IO = 1 to 100 mA, TJ = 25°C 80 IO = 1 to 40 mA, TJ = 25°C 40 TJ = 25°C 6 mA TJ = 125°C 5.5 mA IO = 1 to 40 mA 0.2 VI = 12 to 23 V 1.5 ΔId Quiescent current change eN Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 12 to 23 V, f = 120 Hz IO = 40 mA, TJ = 25°C SVR Vd Table 8. Symbol Parameter VO Output voltage ΔVO Line regulation ΔVO Load regulation Quiescent current Test conditions TJ = 25°C 36 70 µV 44 dB 1.7 V Typ. Max. Unit 9.2 10 10.8 V 11 IO = 1 to 70 mA, VI = 16 V 9 11 V VI = 12.5 to 23 V, TJ = 25°C 230 VI = 13 to 23 V, TJ = 25°C 170 IO = 1 to 100 mA, TJ = 25°C 80 IO = 1 to 40 mA, TJ = 25°C 40 TJ = 25°C 6 mA TJ = 125°C 5.5 mA IO = 1 to 40 mA 0.1 VI = 13 to 23 V 1.5 eN Output noise voltage B =10Hz to 100kHz, TJ = 25°C Supply voltage rejection VI = 14 to 23 V, f = 120Hz IO = 40 mA, TJ = 25°C Dropout voltage Min. 9 Quiescent current change 8/29 mA IO = 1 to 40 mA, VI = 12.5 to 23 V ΔId Vd mV Electrical characteristics of L78L10C (refer to the test circuits, TJ = 0 to 125°C, VI = 16 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Output voltage SVR mV Dropout voltage VO Id V mV mV mA 37 60 µV 45 dB 1.7 V L78LxxAB - L78LxxAC - L78LxxC Table 9. Symbol Electrical characteristics of L78L12C (refer to the test circuits, TJ = 0 to 125°C, VI = 19 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter VO Output voltage VO Output voltage ΔVO Line regulation ΔVO Load regulation Id Electrical characteristics Quiescent current Test conditions Min. Typ. Max. Unit TJ = 25°C 11.1 12 12.9 V IO = 1 to 40 mA, VI = 14.5 to 27 V 10.8 13.2 IO = 1 to 70 mA, VI = 19 V 10.8 13.2 VI = 14.5 to 27 V, TJ = 25°C 250 VI = 16 to 27 V, TJ = 25°C 200 IO = 1 to 100 mA, TJ = 25°C 100 IO = 1 to 40 mA, TJ = 25°C 50 TJ = 25°C 6.5 mA TJ = 125°C 6 mA VI = 16 to 27 V 1.5 eN Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 15 to 25 V, f = 120 Hz IO = 40 mA, TJ = 25°C Table 10. Symbol Parameter VO Output voltage ΔVO Line regulation ΔVO Load regulation Quiescent current Test conditions µV 42 dB 1.7 V Min. Typ. Max. Unit TJ = 25°C 13.8 15 16.2 V IO = 1 to 40 mA, VI = 17.5 to 30 V 13.5 16.5 IO = 1 to 70 mA, VI = 23 V 13.5 16.5 300 VI = 20 to 30 V, TJ = 25°C 250 IO = 1 to 100 mA, TJ = 25°C 150 IO = 1 to 40 mA, TJ = 25°C 75 TJ = 25°C 6.5 mA TJ = 125°C 6 mA mV mV IO = 1 to 40 mA 0.2 VI = 20 to 30 V 1.5 Quiescent current change eN 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 IO = 40 mA, TJ = 25°C Dropout voltage V VI = 17.5 to 30 V, TJ = 25°C ΔId Vd 36 80 Electrical characteristics of L78L15C (refer to the test circuits, TJ = 0 to 125°C, VI = 23 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Output voltage SVR mA Dropout voltage VO Id mV 0.2 Quiescent current change Vd mV IO = 1 to 40 mA ΔId SVR V mA 33 90 µV 39 dB 1.7 V 9/29 Electrical characteristics Table 11. Symbol Electrical characteristics of L78L18C (refer to the test circuits, TJ = 0 to 125°C, VI = 27 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Parameter VO Output voltage VO Output voltage ΔVO Line regulation ΔVO Load regulation Id L78LxxAB - L78LxxAC - L78LxxC Quiescent current Test conditions Min. Typ. Max. Unit TJ = 25°C 16.6 18 19.4 V IO = 1 to 40 mA, VI = 22 to 33 V 16.2 19.8 IO = 1 to 70 mA, VI = 27 V 16.2 19.8 VI = 22 to 33 V, TJ = 25°C 320 VI = 22 to 33 V, TJ = 25°C 270 IO = 1 to 100 mA, TJ = 25°C 170 IO = 1 to 40 mA, TJ = 25°C 85 TJ = 25°C 6.5 mA TJ = 125°C 6 mA VI = 23 to 33 V 1.5 eN Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 23 to 33 V, f = 120 Hz IO = 40 mA, TJ = 25°C Table 12. Symbol Parameter VO Output voltage ΔVO Line regulation ΔVO Load regulation Quiescent current Test conditions 38 dB 1.7 V Typ. Max. Unit TJ = 25°C 22.1 24 25.9 V IO = 1 to 40 mA, VI = 27 to 38 V 21.6 26.4 IO = 1 to 70 mA, VI = 33 V 21.6 26.4 350 VI = 28 to 38 V, TJ = 25°C 300 IO = 1 to 100 mA, TJ = 25°C 200 IO = 1 to 40 mA, TJ = 25°C 100 TJ = 25°C 6.5 mA TJ = 125°C 6 mA mV mV IO = 1 to 40 mA 0.2 VI = 28 to 38 V 1.5 eN Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 29 to 35 V, f = 120 Hz IO = 40 mA, TJ = 25°C Dropout voltage V VI = 27 to 38 V, TJ = 25°C Quiescent current change 10/29 µV Min. ΔId Vd 32 120 Electrical characteristics of L78L24C (refer to the test circuits, TJ = 0 to 125°C, VI = 33 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified) Output voltage SVR mA Dropout voltage VO Id mV 0.2 Quiescent current change Vd mV IO = 1 to 40 mA ΔId SVR V mA 30 200 µV 37 dB 1.7 V L78LxxAB - L78LxxAC - L78LxxC Table 13. Symbol Electrical characteristics of L78L33AB and L78L33AC (refer to the test circuits, VI = 8.3 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, TJ = 0 to 125°C for L78L33AC, TJ = -40 to 125°C for L78L33AB, unless otherwise specified) Parameter VO Output voltage VO Output voltage ΔVO Line regulation ΔVO Load regulation Id Electrical characteristics Quiescent current Test conditions Min. Typ. Max. Unit TJ = 25°C 3.168 3.3 3.432 V IO = 1 to 40 mA, VI = 5.3 to 20 V 3.135 3.465 IO = 1 to 70 mA, VI = 8.3 V 3.135 3.465 VI = 5.3 to 20 V, TJ = 25°C 150 VI = 6.3 to 20 V, TJ = 25°C 100 IO = 1 to 100 mA, TJ = 25°C 60 IO = 1 to 40 mA, TJ = 25°C 30 TJ = 25°C 6 mA TJ = 125°C 5.5 mA IO = 1 to 40 mA 0.1 VI = 6.3 to 20 V 1.5 ΔId Quiescent current change eN Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 6.3 to 16.3 V, f = 120 Hz IO = 40 mA, TJ = 25°C SVR Vd Table 14. Symbol Parameter VO Output voltage ΔVO Line regulation ΔVO Load regulation Quiescent current Test conditions mA 41 40 µV 49 dB 1.7 V Min. Typ. Max. Unit TJ = 25°C 4.8 5 5.2 V IO = 1 to 40 mA, VI = 7 to 20 V 4.75 5.25 IO = 1 to 70 mA, VI = 10 V 4.75 5.25 150 VI = 8 to 20 V, TJ = 25°C 100 IO = 1 to 100 mA, TJ = 25°C 60 IO = 1 to 40 mA, TJ = 25°C 30 TJ = 25°C 6 mA TJ = 125°C 5.5 mA IO = 1 to 40 mA 0.1 VI = 8 to 20 V 1.5 Quiescent current change eN Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 8 to 18 V, f = 120 Hz IO = 40 mA, TJ = 25°C Dropout voltage V VI = 7 to 20 V, TJ = 25°C ΔId Vd mV Electrical characteristics of L78L05AB and L78L05AC (refer to the test circuits, VI = 10 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, TJ = 0 to 125°C for L78L05AC, TJ = -40 to 125°C for L78L05AB, unless otherwise specified) Output voltage SVR mV Dropout voltage VO Id V mV mV mA 41 40 µV 49 dB 1.7 V 11/29 Electrical characteristics Table 15. Symbol Electrical characteristics of L78L06AB and L78L06AC (refer to the test circuits, VI = 12 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, TJ = 0 to 125°C for L78L06AC, TJ = -40 to 125°C for L78L06AB, unless otherwise specified) Parameter VO Output voltage VO Output voltage ΔVO Line regulation ΔVO Load regulation Id L78LxxAB - L78LxxAC - L78LxxC Quiescent current Test conditions Min. Typ. Max. Unit TJ = 25°C 5.76 6 6.24 V IO = 1 to 40 mA, VI = 8.5 to 20 V 5.7 6.3 IO = 1 to 70 mA, VI = 12 V 5.7 6.3 VI = 8.5 to 20 V, TJ = 25°C 150 VI = 9 to 20 V, TJ = 25°C 100 IO = 1 to 100 mA, TJ = 25°C 60 IO = 1 to 40 mA, TJ = 25°C 30 TJ = 25°C 6 mA TJ = 125°C 5.5 mA IO = 1 to 40 mA 0.1 VI = 9 to 20 V 1.5 ΔId Quiescent current change eN Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 9 to 20 V, f = 120 Hz IO = 40 mA, TJ = 25°C SVR Vd Table 16. Symbol Parameter VO Output voltage ΔVO Line regulation ΔVO Load regulation Quiescent current Test conditions 39 50 µV 46 dB 1.7 V Typ. Max. Unit TJ = 25°C 7.68 8 8.32 V IO = 1 to 40 mA, VI = 10.5 to 23 V 7.6 8.4 IO = 1 to 70 mA, VI = 14 V 7.6 8.4 175 VI = 11 to 23 V, TJ = 25°C 125 IO = 1 to 100 mA, TJ = 25°C 80 IO = 1 to 40 mA, TJ = 25°C 40 TJ = 25°C 6 mA TJ = 125°C 5.5 mA IO = 1 to 40 mA 0.1 VI = 11 to 23 V 1.5 eN Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 12 to 23 V, f = 120 Hz IO = 40 mA, TJ = 25°C Dropout voltage V VI = 10.5 to 23 V, TJ = 25°C Quiescent current change 12/29 mA Min. ΔId Vd mV Electrical characteristics of L78L08AB and L78L08AC (refer to the test circuits, VI = 14 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, TJ = 0 to 125°C for L78L08AC, TJ = -40 to 125°C for L78L08AB, unless otherwise specified) Output voltage SVR mV Dropout voltage VO Id V mV mV mA 37 60 µV 45 dB 1.7 V L78LxxAB - L78LxxAC - L78LxxC Table 17. Symbol Electrical characteristics of L78L09AB and L78L09AC (refer to the test circuits, VI = 15 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, TJ = 0 to 125°C for L78L09AC, TJ = -40 to 125°C for L78L09AB, unless otherwise specified) Parameter VO Output voltage VO Output voltage ΔVO Line regulation ΔVO Load regulation Id Electrical characteristics Quiescent current Test conditions Min. Typ. Max. Unit TJ = 25°C 8.64 9 9.36 V IO = 1 to 40 mA, VI = 11.5 to 23 V 8.55 9.45 IO = 1 to 70 mA, VI = 15 V 8.55 9.45 VI = 11.5 to 23 V, TJ = 25°C 225 VI = 12 to 23 V, TJ = 25°C 150 IO = 1 to 100 mA, TJ = 25°C 80 IO = 1 to 40 mA, TJ = 25°C 40 TJ = 25°C 6 mA TJ = 125°C 5.5 mA IO = 1 to 40 mA 0.1 VI = 12 to 23 V 1.5 ΔId Quiescent current change eN Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 12 to 23 V, f = 120 Hz IO = 40 mA, TJ = 25°C SVR Vd Table 18. Symbol Parameter VO Output voltage ΔVO Line regulation ΔVO Load regulation Quiescent current Test conditions mA 37 70 µV 44 dB 1.7 V Min. Typ. Max. Unit TJ = 25°C 9.6 10 10.4 V IO = 1 to 40 mA, VI = 12.5 to 23 V 9.5 10.5 IO = 1 to 70 mA, VI = 16 V 9.5 10.5 230 VI = 13 to 23 V, TJ = 25°C 170 IO = 1 to 100 mA, TJ = 25°C 80 IO = 1 to 40 mA, TJ = 25°C 40 TJ = 25°C 6 mA TJ = 125°C 5.5 mA IO = 1 to 40 mA 0.1 VI = 13 to 23 V 1.5 Quiescent current change eN Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 14 to 23 V, f = 120 Hz IO = 40 mA, TJ = 25°C Dropout voltage V VI = 12.5 to 23 V, TJ = 25°C ΔId Vd mV Electrical characteristics of L78L10AC (refer to the test circuits, VI = 16 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, TJ = 0 to 125°C for L78L10AC, TJ = -40 to 125°C for L78L10AB, unless otherwise specified) Output voltage SVR mV Dropout voltage VO Id V mV mV mA 37 60 µV 45 dB 1.7 V 13/29 Electrical characteristics Table 19. Symbol Electrical characteristics of L78L12AB and L78L12AC (refer to the test circuits, VI = 19 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, TJ = 0 to 125°C for L78L12AC, TJ = -40 to 125°C for L78L12AB, unless otherwise specified) Parameter VO Output voltage VO Output voltage ΔVO Line regulation ΔVO Load regulation Id L78LxxAB - L78LxxAC - L78LxxC Quiescent current Test conditions Min. Typ. Max. Unit TJ = 25°C 11.5 12 12.5 V IO = 1 to 40 mA, VI = 14.5 to 27 V 11.4 12.6 IO = 1 to 70 mA, VI = 19 V 11.4 12.6 VI = 14.5 to 27 V, TJ = 25°C 250 VI = 16 to 27 V, TJ = 25°C 200 IO = 1 to 100 mA, TJ = 25°C 100 IO = 1 to 40 mA, TJ = 25°C 50 TJ = 25°C 6.5 mA TJ = 125°C 6 mA VI = 16 to 27 V 1.5 eN Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 15 to 25 V, f = 120 Hz IO = 40 mA, TJ = 25°C Table 20. Symbol Parameter VO Output voltage ΔVO Line regulation ΔVO Load regulation Quiescent current Test conditions 42 dB 1.7 V Typ. Max. Unit TJ = 25°C 14.4 15 15.6 V IO = 1 to 40 mA, VI = 17.5 to 30 V 14.25 15.75 IO = 1 to 70 mA, VI = 23 V 14.25 15.75 300 VI = 20 to 30 V, TJ = 25°C 250 IO = 1 to 100 mA, TJ = 25°C 150 IO = 1 to 40 mA, TJ = 25°C 75 TJ = 25°C 6.5 mA TJ = 125°C 6 mA mV mV IO = 1 to 40 mA 0.1 VI = 20 to 30 V 1.5 eN 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 IO = 40 mA, TJ = 25°C Dropout voltage V VI = 17.5 to 30 V, TJ = 25°C Quiescent current change 14/29 µV Min. ΔId Vd 37 80 Electrical characteristics of L78L15AB and L78L15AC (refer to the test circuits, VI = 23 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, TJ = 0 to 125°C for L78L15AC, TJ = -40 to 125°C for L78L15AB, unless otherwise specified) Output voltage SVR mA Dropout voltage VO Id mV 0.1 Quiescent current change Vd mV IO = 1 to 40 mA ΔId SVR V mA 34 90 µV 39 dB 1.7 V L78LxxAB - L78LxxAC - L78LxxC Table 21. Symbol Electrical characteristics of L78L18AC (refer to the test circuits, VI = 27 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, TJ = 0 to 125°C for L78L18AC, TJ = -40 to 125°C for L78L18AB, unless otherwise specified) Parameter VO Output voltage VO Output voltage ΔVO Line regulation ΔVO Load regulation Id Electrical characteristics Quiescent current Test conditions Min. Typ. Max. Unit TJ = 25°C 17.3 18 18.7 V IO = 1 to 40 mA, VI = 22 to 33 V 17.1 18.9 IO = 1 to 70 mA, VI = 27 V 17.1 18.9 VI = 22 to 33 V, TJ = 25°C 320 VI = 22 to 33 V, TJ = 25°C 270 IO = 1 to 100 mA, TJ = 25°C 170 IO = 1 to 40 mA, TJ = 25°C 85 TJ = 25°C 6.5 mA TJ = 125°C 6 mA VI = 23 to 33 V 1.5 eN Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 23 to 33 V, f = 120 Hz IO = 40 mA, TJ = 25°C Table 22. Symbol Parameter VO Output voltage ΔVO Line regulation ΔVO Load regulation Quiescent current Test conditions TJ = 25°C µV 38 dB 1.7 V Typ. Max. Unit 23 24 25 V 22.8 25.2 IO = 1 to 70 mA, VI = 33 V 22.8 25.2 V VI = 27 to 38 V, TJ = 25°C 350 VI = 28 to 38 V, TJ = 25°C 300 IO = 1 to 100 mA, TJ = 25°C 200 IO = 1 to 40 mA, TJ = 25°C 100 TJ = 25°C 6.5 mA TJ = 125°C 6 mA mV mV IO = 1 to 40 mA 0.1 VI = 28 to 38 V 1.5 Quiescent current change eN Output noise voltage B =10 Hz to 100 kHz, TJ = 25°C Supply voltage rejection VI = 29 to 33 V, f = 120 Hz IO = 40 mA, TJ = 25°C Dropout voltage Min. IO = 1 to 40 mA, VI = 27 to 38 V ΔId Vd 33 120 Electrical characteristics of L78L24AB and L78L24AC (refer to the test circuits, VI = 33 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF, TJ = 0 to 125°C for L78L24AC, TJ = -40 to 125°C for L78L24AB, unless otherwise specified) Output voltage SVR mA Dropout voltage VO Id mV 0.1 Quiescent current change Vd mV IO = 1 to 40 mA ΔId SVR V mA 31 200 µV 37 dB 1.7 V 15/29 Typical performance L78LxxAB - L78LxxAC - L78LxxC 5 Typical performance Figure 4. L78L05/12 output voltage vs ambient temperature Figure 5. L78L05/12/24 load characteristics Figure 6. L78L05/12/24 thermal shutdown Figure 7. L78L05/12 quiescent current vs output current Figure 8. L78L05 quiescent current vs input voltage Figure 9. L78L05/12/24 output characteristics 16/29 L78LxxAB - L78LxxAC - L78LxxC Figure 10. L78L05/12/24 ripple rejection Typical performance Figure 11. L78L05 dropout characteristics Figure 12. L78Lxx short circuit output current 17/29 Typical application 6 Typical application Figure 13. High output current short circuit protected Figure 14. Edit boost circuit Figure 15. Current regulator 18/29 L78LxxAB - L78LxxAC - L78LxxC L78LxxAB - L78LxxAC - L78LxxC Typical application Figure 16. Adjustable output regulator 19/29 Package mechanical data 7 L78LxxAB - L78LxxAC - L78LxxC 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. 20/29 L78LxxAB - L78LxxAC - L78LxxC Package mechanical data SO-8 mechanical data Dim. mm. Min. Typ. inch. Max. Min. Typ. Max. A 1.35 1.75 0.053 0.069 A1 0.10 0.25 0.04 0.010 A2 1.10 1.65 0.043 0.065 B 0.33 0.51 0.013 0.020 C 0.19 0.25 0.007 0.010 D 4.80 5.00 0.189 0.197 E 3.80 4.00 0.150 0.157 e 1.27 0.050 H 5.80 6.20 0.228 0.244 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.050 k ddd 8° (max.) 0.1 0.04 0016023/C 21/29 Package mechanical data L78LxxAB - L78LxxAC - L78LxxC SOT-89 mechanical data mm. mils. Dim. Min. Typ. Max. Min. Typ. Max. A 1.4 1.6 55.1 63.0 B 0.44 0.56 17.3 22.0 B1 0.36 0.48 14.2 18.9 C 0.35 0.44 13.8 17.3 C1 0.35 0.44 13.8 17.3 D 4.4 4.6 173.2 181.1 D1 1.62 1.83 63.8 72.0 E 2.29 2.6 90.2 102.4 e 1.42 1.57 55.9 61.8 e1 2.92 3.07 115.0 120.9 H 3.94 4.25 155.1 167.3 L 0.89 1.2 35.0 47.2 P025H 22/29 L78LxxAB - L78LxxAC - L78LxxC Package mechanical data TO-92 mechanical data mm. mils. Dim. Min. Typ. Max. Min. Typ. Max. A 4.32 4.95 170.1 194.9 b 0.36 0.51 14.2 20.1 D 4.45 4.95 175.2 194.9 E 3.30 3.94 129.9 155.1 e 2.41 2.67 94.9 105.1 e1 1.14 1.40 44.9 55.1 L 12.7 15.49 500.0 609.8 R 2.16 2.41 85.0 94.9 S1 0.92 1.52 36.2 59.8 W 0.41 0.56 16.1 22.0 α 5° 5° 0102782/D 23/29 Package mechanical data L78LxxAB - L78LxxAC - L78LxxC Tape & reel SO-8 mechanical data mm. inch. Dim. Min. A Max. Min. 330 13.2 Typ. Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 24/29 Typ. 0.504 22.4 0.519 0.882 Ao 8.1 8.5 0.319 0.335 Bo 5.5 5.9 0.216 0.232 Ko 2.1 2.3 0.082 0.090 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.319 L78LxxAB - L78LxxAC - L78LxxC Package mechanical data Tape & reel SOT-89 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 4.70 4.80 4.90 0.185 0.189 0.193 Bo 4.30 4.40 4.50 0.169 0.173 0.177 Ko 1.70 1.80 1.90 0.067 0.071 0.075 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 25/29 Package mechanical data L78LxxAB - L78LxxAC - L78LxxC Tape & reel for TO-92 mechanical data Dim. A1 T T1 T2 d P0 P2 F1, F2 delta H W W0 W1 W2 H H0 H1 D0 t L1 delta P u Φ1 Φ2 mm. Min. inch. Typ. Max. Min. 4.80 3.80 1.60 2.30 0.48 12.5 5.65 2.44 17.5 5.7 8.5 Typ. Max. 0.189 0.150 0.063 0.091 0.019 2.54 ±2 18.00 0.50 18.50 15.50 12.9 7.05 2.94 0.492 0.222 0.096 19.0 6.3 9.25 0.689 0.224 0.335 0.508 0.278 0.116 0.100 0.079 0.709 0.748 0.248 0.364 0.20 0.728 18.70 16.50 0.610 4.2 0.150 25.00 0.726 0.650 0.984 3.8 0.90 3 ±1 50 360 30 0.165 0.035 0.118 0.039 1.968 14.173 1.181 delta P T A1 T2 H1 T1 delta H H H0 d L W2 l1 W0 W W1 F1 F2 D0 P2 P0 DRAWING NOT IN SCALE 26/29 t L78LxxAB - L78LxxAC - L78LxxC 8 Order codes Table 23. Order codes Order codes Packaging Part numbers SO-8 TO92 (BAG) (1) L78L33C L78L33CD-TR 3.3 V L78L33AC L78L33ACD13TR L78L33ACZ L78L33ACUTR 3.3 V L78L33AB L78L33ABD-TR L78L33ABZ L78L33ABUTR 3.3 V L78L05C L78L05CD13TR L78L05CZ L78L05AC L78L05ACD13TR L78L05ACZ L78L05ACUTR 5V L78L05AB L78L05ABD13TR L78L05ABZ L78L05ABUTR 5V L78L06AC L78L06ACD13TR L78L06ACZ L78L06ACUTR 6V L78L06AB L78L06ABD13TR L78L06ABZ L78L06ABUTR 6V L78L08C L78L08CD13TR L78L08AC L78L08ACD13TR L78L08ACZ L78L08ACUTR 8V L78L08AB L78L08ABD13TR L78L08ABZ L78L08ABUTR 8V L78L09C L78L09CD13TR L78L09AC L78L09ACD13TR L78L09ACZ L78L09ACUTR 9V L78L09AB L78L09ABD13TR L78L09ABZ L78L09ABUTR 9V L78L10ACUTR 10 V 5V 8V 9V L78L10AC L78L12C L78L12CD13TR L78L12AC L78L12ACD13TR L78L12ACZ L78L12ACUTR 12 V L78L12AB L78L12ABD-TR L78L12ABZ L78L12ABUTR 12 V L78L15C L78L15CD-TR L78L15AC L78L15ACD13TR L78L15AB 1. Output voltage SOT-89 12 V 15 V L78L15ACZ L78L15ACUTR 15 V L78L15ABZ L78L15ABUTR 15 V L78L18C L78L18CD13TR 18 V L78L18AC L78L18ACD13TR L78L24C L78L24CD-TR L78L24AC L78L24ACD-TR L78L24ACZ L78L24ACUTR 24 V L78L24AB L78L24ABD13TR L78L24ABZ L78L24ABUTR 24 V L78L18ACUTR 18 V 24 V Available in Ammopak with the suffix "-AP" or in Tape & Reel with the suffix "TR". Please note that in these cases pins are shaped according to Tape & Reel specifications. 27/29 Revision history L78LxxAB - L78LxxAC - L78LxxC 9 Revision history Table 24. Document revision history Date Revision 14-Mar-2005 9 Add tape & reel for TO-92. 15-Mar-2005 10 Add note on Table 3. 23-Dec-2005 11 Mistake on ordering Table in header. 12-Sep-2006 12 Order codes updated. 07-Jun-2007 13 Order codes updated. 18-Sep-2007 14 Added Table 1 in cover page. 15-Jul-2008 15 Modified: Table 1 on page 1 and Table 23 on page 27. 18-Aug-2008 16 Modified Figure 12 on page 17. 28/29 Changes L78LxxAB - L78LxxAC - L78LxxC 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. 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