L78M00 SERIES POSITIVE VOLTAGE REGULATORS .. .. . OUTPUT CURRENT TO 0.5A OUTPUT VOLTAGES OF 5; 6; 8; 9; 10; 12; 15; 18; 20; 24V THERMAL OVERLOAD PROTECTION SHORT CIRCUIT PROTECTION OUTPUT TRANSISTOR SOA PROTECTION DESCRIPTION The L78M00 series of three-terminal positive regulators is available in TO-220, ISOWATT220, SOT-82, SOT-194 and DPAK packages and with 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 0.5A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. 3 1 SOT-82 TO-220 SOT-194 DPAK (TO-252) ISOWATT220 BLOCK DIAGRAM April 1994 1/19 L78M00 SERIES ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit 35 40 V V Vi DC Input Voltage (for V o = 5 to 18V) (for V o = 20, 24V) Io Output Current Internally limited Internally limited Ptot Power Dissipation T stg Storage Temperature Top Operating Junction Temperature – 65 to + 150 °C 0 to + 150 °C THERMAL DATA Symbol Parameter Rthj-case Thermal Resistance Junction-case Rthj-amb Thermal Resistance Junction-ambient Max Max SOT-82 SOT-194 DPAK TO-220 ISOWATT220 8 100 3 50 4 60 Unit o C/W C/W o CONNECTION DIAGRAM AND ORDERING NUMBERS (top view) TO-220/ISOWATT22 0 SOT82/194 DPAK Order Code Output Voltage TO-220 ISOWATT220 SOT-82 SOT-194 DPAK L78M05CV L78M06CV L78M08CV L78M09CV L78M10CV L78M12CV L78M15CV L78M18CV L78M20CV L78M24CV L78M05CP L78M06CP L78M08CP L78M09CP L78M10CP L78M12CP L78M15CP L78M18CP L78M20CP L78M24CP L78M05CX L78M06CX L78M08CX L78M09CX L78M10CX L78M12CX L78M15CX L78M18CX L78M20CX L78M24CX L78M05CS L78M06CS L78M08CS L78M09CS L78M10CS L78M12CS L78M15CS L78M18CS L78M20CS L78M24CS L78M05CDT L78M06CDT L78M08CDT L78M09CDT L78M10CDT L78M12CDT L78M15CDT L78M18CDT L78M20CDT L78M24CDT 2/19 5V 6V 8V 9V 10V 12V 15V 18V 20V 24V L78M00 SERIES APPLICATION CIRCUIT SCHEMATIC DIAGRAM 3/19 L78M00 SERIES TEST CIRCUITS Figure 1 : DC Parameters. Figure 3 : Ripple Rejection. 4/19 Figure 2 : Load Regulation. L78M00 SERIES ELECTRICAL CHARACTERISTICS FOR L78M05C (refer to the test circuits, Tj = 25 oC, Vi = 10V, Io = 350 mA, Ci = 0.33 µF, Co = 0.1 µF unless otherwise specified) Symbol Parameter Test Conditions Vo Output Voltage Vo Output Voltage Io = 5 mA to 350 mA Vi = 7 to 20 V ∆Vo Line Regulation Io = 200 mA Io = 200 mA ∆Vo Load Regulation Io = 5 to 500 mA Io = 5 to 200 mA Min. Typ. Max. Unit 4.8 5 5.2 V 4.75 5 5.25 V 100 50 mV mV 100 50 mV mV 6 mA Vi = 7 to 25 V Vi = 8 to 25 V Tj = 25 oC Tj = 25 oC Id Quiescent Current ∆Id Quiescent Current Change Io = 5 to 350 mA 0.5 mA ∆Id Quiescent Current Change Io = 200 mA Vi = 8 to 25 V 0.8 mA ∆Vo ∆T Output Voltage Drift Io = 5 mA eN Output Noise Voltage B = 10Hz to 100KHz Supply Voltage Rejection Io = 300 mA Vi = 8 to 18 V SVR Vd Dropout Voltage Isc Short Circuit Current Iscp Short Circuit Peack Current Tj = 0 to 125 oC f = 120 Hz -0.5 mV/oC 40 µV 62 Vi = 35 V dB 2 V 300 mA 700 mA o ELECTRICAL CHARACTERISTICS FOR L78M06C (refer to the test circuits, Tj = 25 C, Vi = 11V, Io = 350 mA, Ci = 0.33 µF, Co = 0.1 µF unless otherwise specified) Symbol Parameter Test Conditions Vo Output Voltage Vo Output Voltage Io = 5 mA to 350 mA Vi = 8 to 21 V ∆Vo Line Regulation Io = 200 mA Io = 200 mA ∆Vo Load Regulation Io = 5 to 500 mA Io = 5 to 200 mA Min. Typ. Max. Unit 5.75 6 6.25 V 5.7 6 6.3 V 100 50 mV mV 120 60 mV mV 6 mA Vi = 8 to 25 V Vi = 9 to 25 V Tj = 25 oC Tj = 25 oC Id Quiescent Current ∆Id Quiescent Current Change Io = 5 to 350 mA 0.5 mA ∆Id Quiescent Current Change Io = 200 mA Vi = 9 to 25 V 0.8 mA ∆Vo ∆T Output Voltage Drift Io = 5 mA eN Output Noise Voltage B = 10Hz to 100KHz Supply Voltage Rejection Io = 300 mA Vi = 9 to 19 V SVR Vd Dropout Voltage Isc Short Circuit Current Iscp Short Circuit Peack Current Vi = 35 V Tj = 0 to 125 oC f = 120 Hz -0.5 mV/oC 45 µV 59 dB 2 V 270 mA 700 mA 5/19 L78M00 SERIES ELECTRICAL CHARACTERISTICS FOR L78M08C (refer to the test circuits, Tj = 25 oC, Vi = 14V, Io = 350 mA, Ci = 0.33 µF, Co = 0.1 µF unless otherwise specified) Symbol Parameter Test Conditions Vo Output Voltage Vo Output Voltage Io = 5 mA to 350 mA Vi = 10.5 to 23 V ∆Vo Line Regulation Io = 200 mA Io = 200 mA ∆Vo Load Regulation Io = 5 to 500 mA Io = 5 to 200 mA Min. Typ. Max. Unit 7.7 8 8.3 V 7.6 8 8.4 V 100 50 mV mV 160 80 mV mV 6 mA Vi = 10.5 to 25 V Vi = 11 to 25 V Tj = 25 oC Tj = 25 oC Id Quiescent Current ∆Id Quiescent Current Change Io = 5 to 350 mA 0.5 mA ∆Id Quiescent Current Change Io = 200 mA Vi = 10.5 to 25 V 0.8 mA ∆Vo ∆T Output Voltage Drift Io = 5 mA eN Output Noise Voltage B = 10Hz to 100KHz Supply Voltage Rejection Io = 300 mA f = 120 Hz Vi = 11.5 to 21.5 V SVR Vd Dropout Voltage Isc Short Circuit Current Iscp Short Circuit Peack Current Tj = 0 to 125 oC -0.5 mV/oC 52 µV 56 Vi = 35 V dB 2 V 250 mA 700 mA o ELECTRICAL CHARACTERISTICS FOR L78M09C (refer to the test circuits, Tj = 25 C, Vi = 15V, Io = 350 mA, Ci = 0.33 µF, Co = 0.1 µF unless otherwise specified) Symbol Parameter Test Conditions Vo Output Voltage Vo Output Voltage Io = 5 mA to 350 mA Vi = 11.5 to 24 V ∆Vo Line Regulation Io = 200 mA Io = 200 mA ∆Vo Load Regulation Io = 5 to 500 mA Io = 5 to 200 mA Min. Typ. Max. Unit 8.65 9 9.35 V 8.55 9 9.45 V 100 50 mV mV 180 90 mV mV 6 mA Vi = 11.5 to 25 V Vi = 12 to 25 V Tj = 25 oC Tj = 25 oC Id Quiescent Current ∆Id Quiescent Current Change Io = 5 to 350 mA 0.5 mA ∆Id Quiescent Current Change Io = 200 mA Vi = 11.5 to 25 V 0.8 mA ∆Vo ∆T Output Voltage Drift Io = 5 mA eN Output Noise Voltage B = 10Hz to 100KHz Supply Voltage Rejection Io = 300 mA f = 120 Hz Vi = 12.5 to 23 V SVR Vd Dropout Voltage Isc Short Circuit Current Iscp Short Circuit Peack Current 6/19 Vi = 35 V Tj = 0 to 125 oC -0.5 mV/oC 58 µV 56 dB 2 V 250 mA 700 mA L78M00 SERIES ELECTRICAL CHARACTERISTICS FOR L78M10C (refer to the test circuits, Tj = 25 oC, Vi = 16V, Io = 350 mA, Ci = 0.33 µF, Co = 0.1 µF unless otherwise specified) Symbol Parameter Test Conditions Vo Output Voltage Vo Output Voltage Io = 5 mA to 350 mA Vi = 12.5 to 25 V ∆Vo Line Regulation Io = 200 mA Io = 200 mA ∆Vo Load Regulation Io = 5 to 500 mA Io = 5 to 200 mA Min. Typ. Max. Unit 9.6 10 10.4 V 9.5 10 10.5 V 100 50 mV mV 200 100 mV mV 6 mA Vi = 12.5 to 30 V Vi = 13 to 30 V Tj = 25 oC Tj = 25 oC Id Quiescent Current ∆Id Quiescent Current Change Io = 5 to 350 mA 0.5 mA ∆Id Quiescent Current Change Io = 200 mA Vi = 12.5 to 30 V 0.8 mA ∆Vo ∆T Output Voltage Drift Io = 5 mA eN Output Noise Voltage B = 10Hz to 100KHz Supply Voltage Rejection Io = 300 mA f = 120 Hz Vi = 13.5 to 24 V SVR Vd Dropout Voltage Isc Short Circuit Current Iscp Short Circuit Peack Current Tj = 0 to 125 oC -0.5 mV/oC 64 µV 56 Vi = 35 V dB 2 V 245 mA 700 mA o ELECTRICAL CHARACTERISTICS FOR L78M12C (refer to the test circuits, Tj = 25 C, Vi = 19V, Io = 350 mA, Ci = 0.33 µF, Co = 0.1 µF unless otherwise specified) Symbol Parameter Test Conditions Vo Output Voltage Vo Output Voltage Io = 5 mA to 350 mA Vi = 14.5 to 27 V ∆Vo Line Regulation Io = 200 mA Io = 200 mA ∆Vo Load Regulation Io = 5 to 500 mA Io = 5 to 200 mA Min. Typ. Max. Unit 11.5 12 12.5 V 11.4 12 12.6 V 100 50 mV mV 240 120 mV mV 6 mA Vi = 14.5 to 30 V Vi = 16 to 30 V Tj = 25 oC Tj = 25 oC Id Quiescent Current ∆Id Quiescent Current Change Io = 5 to 350 mA 0.5 mA ∆Id Quiescent Current Change Io = 200 mA Vi = 14.5 to 30 V 0.8 mA ∆Vo ∆T Output Voltage Drift Io = 5 mA eN Output Noise Voltage B = 10Hz to 100KHz Supply Voltage Rejection Io = 300 mA f = 120 Hz Vi = 15 to 25 V SVR Vd Dropout Voltage Isc Short Circuit Current Iscp Short Circuit Peack Current Vi = 35 V Tj = 0 to 125 oC -1 mV/oC 75 µV 55 dB 2 V 240 mA 700 mA 7/19 L78M00 SERIES ELECTRICAL CHARACTERISTICS FOR L78M15C (refer to the test circuits, Tj = 25 oC, Vi = 23V, Io = 350 mA, Ci = 0.33 µF, Co = 0.1 µF unless otherwise specified) Symbol Parameter Test Conditions Vo Output Voltage Vo Output Voltage Io = 5 mA to 350 mA Vi = 17.5 to 30 V ∆Vo Line Regulation Io = 200 mA Io = 200 mA ∆Vo Load Regulation Io = 5 to 500 mA Io = 5 to 200 mA Min. Typ. Max. Unit 14.4 15 15.6 V 14.25 15 15.75 V 100 50 mV mV 300 150 mV mV 6 mA Vi = 17.5 to 30 V Vi = 20 to 30 V Tj = 25 oC Tj = 25 oC Id Quiescent Current ∆Id Quiescent Current Change Io = 5 to 350 mA 0.5 mA ∆Id Quiescent Current Change Io = 200 mA Vi = 17.5 to 30 V 0.8 mA ∆Vo ∆T Output Voltage Drift Io = 5 mA eN Output Noise Voltage B = 10Hz to 100KHz Supply Voltage Rejection Io = 300 mA f = 120 Hz Vi = 18.5 to 28.5 V SVR Vd Dropout Voltage Isc Short Circuit Current Iscp Short Circuit Peack Current Tj = 0 to 125 oC -1 mV/oC 90 µV 54 Vi = 35 V dB 2 V 240 mA 700 mA o ELECTRICAL CHARACTERISTICS FOR L78M18C (refer to the test circuits, Tj = 25 C, Vi = 26V, Io = 350 mA, Ci = 0.33 µF, Co = 0.1 µF unless otherwise specified) Symbol Parameter Test Conditions Vo Output Voltage Vo Output Voltage Io = 5 mA to 350 mA Vi = 20.5 to 33 V ∆Vo Line Regulation Io = 200 mA Io = 200 mA ∆Vo Load Regulation Io = 5 to 500 mA Io = 5 to 200 mA Min. Typ. Max. Unit 17.3 18 18.7 V 17.1 18 18.9 V 100 50 mV mV 360 180 mV mV 6 mA Vi = 21 to 33 V Vi = 24 to 33 V Tj = 25 oC Tj = 25 oC Id Quiescent Current ∆Id Quiescent Current Change Io = 5 to 350 mA 0.5 mA ∆Id Quiescent Current Change Io = 200 mA Vi = 21 to 33 V 0.8 mA ∆Vo ∆T Output Voltage Drift Io = 5 mA eN Output Noise Voltage B = 10Hz to 100KHz Supply Voltage Rejection Io = 300 mA f = 120 Hz Vi = 22 to 32 V SVR Vd Dropout Voltage Isc Short Circuit Current Iscp Short Circuit Peack Current 8/19 Vi = 35 V o Tj = 0 to 125 C -1.1 mV/oC 100 µV 53 dB 2 V 240 mA 700 mA L78M00 SERIES ELECTRICAL CHARACTERISTICS FOR L78M20C (refer to the test circuits, Tj = 25 oC, Vi = 29V, Io = 350 mA, Ci = 0.33 µF, Co = 0.1 µF unless otherwise specified) Symbol Parameter Test Conditions Vo Output Voltage Vo Output Voltage Io = 5 mA to 350 mA Vi = 23 to 35 V ∆Vo Line Regulation Io = 200 mA Io = 200 mA ∆Vo Load Regulation Io = 5 to 500 mA Io = 5 to 200 mA Min. Typ. Max. Unit 19.2 20 20.8 V 19 20 21 V 100 50 mV mV 400 200 mV mV 6 mA Vi = 23 to 35 V Vi = 24 to 35 V Tj = 25 oC Tj = 25 oC Id Quiescent Current ∆Id Quiescent Current Change Io = 5 to 350 mA 0.5 mA ∆Id Quiescent Current Change Io = 200 mA Vi = 23 to 35 V 0.8 mA ∆Vo ∆T Output Voltage Drift Io = 5 mA eN Output Noise Voltage B = 10Hz to 100KHz Supply Voltage Rejection Io = 300 mA f = 120 Hz Vi = 24 to 34 V SVR Vd Dropout Voltage Isc Short Circuit Current Iscp Short Circuit Peack Current o Tj = 0 to 125 C -1.1 mV/oC 110 µV 53 Vi = 35 V dB 2 V 240 mA 700 mA o ELECTRICAL CHARACTERISTICS FOR L78M24C (refer to the test circuits, Tj = 25 C, Vi = 33V, Io = 350 mA, Ci = 0.33 µF, Co = 0.1 µF unless otherwise specified) Symbol Parameter Test Conditions Vo Output Voltage Vo Output Voltage Io = 5 mA to 350 mA Vi = 27 to 38 V ∆Vo Line Regulation Io = 200 mA Io = 200 mA ∆Vo Load Regulation Io = 5 to 500 mA Io = 5 to 200 mA Min. Typ. Max. Unit 23 24 25 V 22.8 24 25.2 V 100 50 mV mV 480 240 mV mV 6 mA Vi = 27 to 38 V Vi = 28 to 38 V Tj = 25 oC Tj = 25 oC Id Quiescent Current ∆Id Quiescent Current Change Io = 5 to 350 mA 0.5 mA ∆Id Quiescent Current Change Io = 200 mA Vi = 27 to 38 V 0.8 mA ∆Vo ∆T Output Voltage Drift Io = 5 mA eN Output Noise Voltage B = 10Hz to 100KHz Supply Voltage Rejection Io = 300 mA f = 120 Hz Vi = 28 to 38 V SVR Vd Dropout Voltage Isc Short Circuit Current Iscp Short Circuit Peack Current Vi = 35 V o Tj = 0 to 125 C -1.2 mV/oC 170 µV 50 dB 2 V 240 mA 700 mA 9/19 L78M00 SERIES Figure 4 : Dropout Voltage vs. Junction Temperature. Figure 5 : Dropout Characteristics. Figure 6 : Peak Output Current vs. Input-Output Differential Voltage. Figure 7 : Output Voltage vs. Junction Temperature. Figure 8 : Supply Voltage Rejection vs. Frequency. Figure 9 : Quiescent Current vs. Junction Temperature. 10/19 L78M00 SERIES Figure 10 : Load Transient Response. Figure 11 : Line Transient Response. Figure 12 : Quiescent Current vs. Input Voltage. Figure 13 : Fixed Output Regulator. Notes : 1. 2. 3. Figure 14 : Constant Current Regulator. IO = VXX R1 To specify an output voltage, substitute voltage value for ”XX”. Although no output capacitor is needed for stability, it does improve transient response. Required if regulator is located an appreciable dis-tance from power supply filter. Figure 15 : Circuit for Increasing Output Voltage. IR1 ≥ 5 Id + Id VO = VXX (1 + R2 R1 ) + Id R2 11/19 L78M00 SERIES Figure 16 : Adjustable Output Regulator (7 to 30V). Figure 17 : 0.5 to 10V Regulator. VO = VXX Figure 18 : High Current Voltage Regulator. R1 = IREQ – R4 R1 Figure 19 : High Output Current with Short Circuit Protection. VBEQ1 IQ1 βQ1 IO = IREG + Q1 [IREG – VBEQ1 R1 RSC = ] Figure 20 : Tracking Voltage Regulator. VBEQ2 ISC Figure 21 : High Input Voltage Circuit. VIN = VZ - VBE 12/19 L78M00 SERIES Figure 22 : Reducing Power Dissipation with Dropping Resistor. R= Figure 23 : Power AM Modulator (unity voltage gain, Io ≤ 0.5). Vi(min) - VXX - VDROP(max) IO(max) + Id(max) Note : The circuit performs well up to 100KHz. Figure 24 : Adjustable Output Voltage with Temperature Compensation. Note :Q2 is connected as a diode i n order to compensat e the variation of the Q 1 VBE wi th the temperature. C allows a slow rise-ti me of the V O VO = VXX (1 + R2 R1 ) + VBE 13/19 L78M00 SERIES TO-220 MECHANICAL DATA mm DIM. MIN. TYP. inch MAX. MIN. TYP. MAX. A 4.8 0.189 C 1.37 0.054 D 2.4 2.8 0.094 0.110 D1 1.2 1.35 0.047 0.053 E 0.35 0.55 0.014 0.022 F 0.8 1.05 0.031 0.041 F2 1.15 1.4 0.045 0.055 G 4.95 5.21 0.195 5.08 H2 H3 0.200 10.4 10.05 L2 10.4 0.409 0.396 16.2 26.7 0.205 0.409 0.638 L3 26.3 27.1 1.035 L5 2.6 3 0.102 1.051 1.067 0.118 L6 15.1 15.8 0.594 0.622 L7 6 6.6 0.236 0.260 Dia. 3.65 3.85 0.144 0.152 P011D 14/19 L78M00 SERIES ISOWATT220 MECHANICAL DATA mm DIM. MIN. inch MAX. MIN. A 4.4 4.6 0.173 0.181 B 2.5 2.7 0.098 0.106 D 2.5 2.75 0.098 0.108 E 0.4 0.7 0.015 0.027 F 0.75 1 0.030 0.039 F1 1.15 1.7 0.045 0.067 F2 1.15 1.7 0.045 0.067 G 4.95 5.2 0.195 0.204 G1 2.4 2.7 0.094 0.106 H 10 10.4 0.393 0.409 L2 TYP. TYP. 16 MAX. 0.630 28.6 30.6 1.126 1.204 L4 9.8 10.6 0.385 0.417 L6 15.9 16.4 0.626 0.645 L7 9 9.3 0.354 0.366 Ø 3 3.2 0.118 0.126 B D A E L3 L3 L6 F F1 L7 F2 H G G1 Ø 1 2 3 L2 L4 P011G 15/19 L78M00 SERIES SOT-82 MECHANICAL DATA mm DIM. MIN. inch TYP. MAX. MIN. TYP. MAX. A 7.4 7.8 0.291 0.307 B 10.5 11.3 0.413 0.445 b 0.7 0.9 0.028 0.035 b1 0.49 0.75 0.019 0.030 C 2.4 2.7 0.04 0.106 c1 1.2 0.047 D 15.7 0.618 e 2.2 0.087 e3 4.4 0.173 F 3.8 0.150 H 2.54 0.100 C D H B F A c1 b e b1 e3 16/19 P032A L78M00 SERIES SOT-194 MECHANICAL DATA mm DIM. MIN. inch MAX. MIN. A 7.4 TYP. 7.8 0.291 TYP. 0.307 B 10.5 11.3 0.413 0.445 b 0.7 0.9 0.028 0.035 b1 0.49 0.75 0.019 0.030 C 2.4 2.7 0.094 0.106 c1 1.2 0.047 c2 1.3 0.051 D 6 0.236 e 2.2 0.087 e3 4.4 0.173 F 3.8 0.150 H MAX. 2.54 P 0.100 45° (typ.) S 4 0.157 S1 2 0.079 T 0.1 0.004 C B F A H T D P S1 S C1 b1 b e c2 e3 P032B 17/19 L78M00 SERIES TO-252 (DPAK) MECHANICAL DATA mm DIM. MIN. TYP. inch MAX. MIN. TYP. A 2.2 2.4 0.086 0.094 A1 0.9 1.1 0.035 0.043 B 0.64 0.8 0.025 0.031 B1 3.4 3.6 0.133 0.141 B2 5.2 5.4 0.204 0.212 B3 0.9 0.035 B4 1.9 2.1 0.074 0.082 C 0.48 0.6 0.018 0.023 C1 0.45 0.6 0.017 0.023 D 6 6.2 0.236 0.244 E 6.4 6.6 0.252 0.260 G 4.4 4.6 0.173 0.181 H 9.35 10.1 0.368 0.397 L 2.55 3.05 0.100 0.120 L1 0.6 1 0.023 0.039 L2 0.8 0.031 L3 0.8 1.2 0.031 0.047 L4 0.3 0.45 0.012 0.017 L3 1 L1 =G= 2 = = B4 B1 = = B2 = = E = = 3 L4 B L D B3 L2 A1 C1 C A H 18/19 MAX. L78M00 SERIES Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specificationsmentioned in this publication are subject to change without notice. This publication supersedes and r eplaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use ascritical componentsin life s upport devices or systems without express written approval of SGS-THOMSON Microelectonics. 1994 SGS-THOMSON Microelectronics - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A 19/19