LM78LXX Series 3-Terminal Positive Regulators General Description Features The LM78LXX series of three terminal positive regulators is available with several fixed output voltages making them useful in a wide range of applications. When used as a zener diode/resistor combination replacement, the LM78LXX usually results in an effective output impedance improvement of two orders of magnitude, and lower quiescent current. These regulators can provide local on card regulation, eliminating the distribution problems associated with single point regulation. The voltages available allow the LM78LXX to be used in logic systems, instrumentation, HiFi, and other solid state electronic equipment. The LM78LXX is available in the metal three-lead TO-39(H) package, the plastic TO-92 (Z) package, and the plastic SO-8 (M) package. With adequate heat sinking the regulator can deliver 100 mA output current. Current limiting is included to limit the peak output current to a safe value. Safe area protection for the output transistors is provided to limit internal power dissipation. If internal power dissipation becomes too high for the heat sinking provided, the thermal shutdown circuit takes over preventing the IC from overheating. Y Y Y Y Y Y Y Y Output voltage tolerances of g 5% (LM78LXXAC) over the temperature range Output current of 100 mA Internal thermal overload protection Output transistor safe area protection Internal short circuit current limit Available in plastic TO-92 and metal TO-39 and plastic SO-8 low profile packages No external components Output voltages of 5.0V, 6.2V, 8.2V, 9.0V, 12V, 15V Connection Diagrams (TO-39) Metal Can Package (H) (TO-92) Plastic Package (Z) SO-8 Plastic (M) (Narrow Body) TL/H/7744 – 3 TL/H/7744 – 2 TL/H/7744–1 Bottom View Top View Order Number LM78L05ACH, LM78L12ACH or LM78L15ACH See NS Package Number H03A Order Number LM78L05ACM, LM78L12ACM or LM78L15ACM See NS Package Number M08A C1995 National Semiconductor Corporation TL/H/7744 Bottom View Order Number LM78L05ACZ, LM78L09ACZ, LM78L12ACZ, LM78L15ACZ, LM78L62ACZ or LM78L82ACZ See NS Package Number Z03A RRD-B30M115/Printed in U. S. A. LM78LXX Series 3-Terminal Positive Regulators February 1995 Absolute Maximum Ratings (Note 1) Storage Temperature If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. Power Dissipation (Note 5) Input Voltage b 65§ C to a 150§ C Operating Junction Temperature 0§ C to a 125§ C Lead Temperature (Soldering, 10 seconds) ESD Susceptibility (Note 2) Internally Limited 35V 265§ C 2 kV LM78LXXAC Electrical Characteristics Limits in standard typeface are for TJ e 25§ C, bold typeface applies over the 0§ C to a 125§ C temperature range. Limits are guaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless otherwise specified: IO e 40 mA, CI e 0.33 mF, CO e 0.1 mF. LM78L05AC Unless otherwise specified, VIN e 10V Symbol VO DVO Parameter Conditions Output Voltage Line Regulation DVO Load Regulation IQ Quiescent Current DIQ Quiescent Current Change 1 mA s IO s 70 mA (Note 3) 4.75 5.25 7V s VIN s 20V 18 75 8V s VIN s 20V 10 54 1 mA s IO s 100 mA 20 60 1 mA s IO s 40 mA 5 30 3 1.0 1 mA s IO s 40 mA 0.1 Ripple Rejection f e 120 Hz 8V s VIN s 16V VIN (Min) Minimum Value of Input Voltage Required to Maintain Line Regulation IO e 5 mA 47 V mV mA 40 mV 62 dB 140 mA b 0.65 mV/§ C 6.7 2 Units 5 8V s VIN s 20V DVIN DVOUT Peak Output Current 5.2 5.25 f e 10 Hz to 100 kHz (Note 4) Average Output Voltage Tempco Max 5 4.75 Output Noise Voltage DVO DT Typ 4.8 7V s VIN s 20V 1 mA s IO s 40 mA (Note 3) Vn IPK Min 7 V LM78LXXAC Electrical Characteristics Limits in standard typeface are for TJ e 25§ C, bold typeface applies over the 0§ C to a 125§ C temperature range. Limits are guaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless otherwise specified: IO e 40 mA, CI e 0.33 mF, CO e 0.1 mF. (Continued) LM78L62AC Unless otherwise specified, VIN e 12V Symbol VO DVO Parameter Conditions Output Voltage Line Regulation DVO Load Regulation IQ Quiescent Current DIQ Quiescent Current Change 6.2 6.45 1 mA s IO s 70 mA (Note 3) 5.9 6.5 8.5V s VIN s 20V 65 175 9V s VIN s 20V 55 125 1 mA s IO s 100 mA 13 80 1 mA s IO s 40 mA 6 40 2 5.5 8V s VIN s 20V 1.5 1 mA s IO s 40 mA 0.1 DVIN DVOUT Ripple Rejection f e 120 Hz 10V s VIN s 20V IPK Peak Output Current Minimum Value of Input Voltage Required to Maintain Line Regulation 5.95 6.5 f e 10 Hz to 100 kHz (Note 4) VIN (Min) Max 5.9 Output Noise Voltage Average Output Voltage Tempco Typ 8.5V s VIN s 20V 1 mA s IO s 40 mA (Note 3) Vn DVO DT Min IO e 5 mA 3 40 Units V mV mA 50 mV 46 dB 140 mA b 0.75 mV/§ C 7.9 V LM78LXXAC Electrical Characteristics Limits in standard typeface are for TJ e 25§ C, bold typeface applies over the 0§ C to a 125§ C temperature range. Limits are guaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless otherwise specified: IO e 40 mA, CI e 0.33 mF, CO e 0.1 mF. (Continued) LM78L82AC Unless otherwise specified, VIN e 14V Symbol VO DVO Parameter Conditions Output Voltage Line Regulation DVO Load Regulation IQ Quiescent Current DIQ Quiescent Current Change 8.2 8.53 1 mA s IO s 70 mA (Note 3) 7.8 8.6 11V s VIN s 23V 80 175 12V s VIN s 23V 70 125 1 mA s IO s 100 mA 15 80 1 mA s IO s 40 mA 8 40 2 5.5 12V s VIN s 23V 1.5 1 mA s IO s 40 mA 0.1 DVIN DVOUT Ripple Rejection f e 120 Hz 12V s VIN s 22V IPK Peak Output Current Minimum Value of Input Voltage Required to Maintain Line Regulation 7.87 8.6 f e 10 Hz to 100 kHz (Note 4) VIN (Min) Max 7.8 Output Noise Voltage Average Output Voltage Tempco Typ 11V s VIN s 23V 1 mA s IO s 40 mA (Note 3) Vn DVO DT Min IO e 5 mA 4 39 Units V mV mA 60 mV 45 dB 140 mA b 0.8 mV/§ C 9.9 V LM78LXXAC Electrical Characteristics Limits in standard typeface are for TJ e 25§ C, bold typeface applies over the 0§ C to a 125§ C temperature range. Limits are guaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless otherwise specified: IO e 40 mA, CI e 0.33 mF, CO e 0.1 mF. (Continued) LM78L09AC Unless otherwise specified, VIN e 15V Symbol VO DVO Parameter Conditions Output Voltage Line Regulation DVO Load Regulation IQ Quiescent Current DIQ Quiescent Current Change Vn Output Noise Voltage DVIN DVOUT Ripple Rejection IPK Peak Output Current DVO DT Average Output Voltage Tempco VIN (Min) Minimum Value of Input Voltage Required to Maintain Line Regulation Min Typ Max 8.64 9.0 9.36 11.5V s VIN s 24V 1 mA s IO s 40 mA (Note 3) 8.55 9.45 1 mA s IO s 70 mA (Note 3) 8.55 9.45 11.5V s VIN s 24V 100 200 13V s VIN s 24V 90 150 1 mA s IO s 100 mA 20 90 1 mA s IO s 40 mA 10 45 2 5.5 11.5V s VIN s 24V 1.5 1 mA s IO s 40 mA 0.1 f e 120 Hz 15V s VIN s 25V IO e 5 mA 5 38 Units V mV mA 70 mV 44 dB 140 mA b 0.9 mV/§ C 10.7 V LM78LXXAC Electrical Characteristics Limits in standard typeface are for TJ e 25§ C, bold typeface applies over the 0§ C to a 125§ C temperature range. Limits are guaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless otherwise specified: IO e 40 mA, CI e 0.33 mF, CO e 0.1 mF. (Continued) LM78L12AC Unless otherwise specified, VIN e 19V Symbol VO DVO Parameter Output Voltage Line Regulation DVO Load Regulation IQ Quiescent Current DIQ Conditions Quiescent Current Change Min Typ Max 11.5 12 12.5 14.5V s VIN s 27V 1 mA s IO s 40 mA (Note 3) 11.4 12.6 1 mA s IO s 70 mA (Note 3) 11.4 12.6 14.5V s VIN s 27V 30 180 16V s VIN s 27V 20 110 1 mA s IO s 100 mA 30 100 1 mA s IO s 40 mA 10 50 3 5 16V s VIN s 27V 1 1 mA s IO s 40 mA Vn Output Noise Voltage DVIN DVOUT Ripple Rejection IPK Peak Output Current DVO DT Average Output Voltage Tempco VIN (Min) Minimum Value of Input Voltage Required to Maintain Line Regulation f e 120 Hz 15V s VIN s 25V IO e 5 mA V mV mA 0.1 40 80 mV 54 dB 140 mA b 1.0 mV/§ C 13.7 6 Units 14.5 V LM78LXXAC Electrical Characteristics Limits in standard typeface are for TJ e 25§ C, bold typeface applies over the 0§ C to a 125§ C temperature range. Limits are guaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless otherwise specified: IO e 40 mA, CI e 0.33 mF, CO e 0.1 mF. (Continued) LM78L15AC Unless otherwise specified, VIN e 23V Symbol VO DVO Parameter Output Voltage Line Regulation DVO Load Regulation IQ Quiescent Current DIQ Conditions Quiescent Current Change Min Typ Max 14.4 15.0 15.6 17.5V s VIN s 30V 1 mA s IO s 40 mA (Note 3) 14.25 15.75 1 mA s IO s 70 mA (Note 3) 14.25 15.75 17.5V s VIN s 30V 37 250 20V s VIN s 30V 25 140 1 mA s IO s 100 mA 35 150 1 mA s IO s 40 mA 12 75 3 5 20V s VIN s 30V 1 1 mA s IO s 40 mA Vn Output Noise Voltage DVIN DVOUT Ripple Rejection IPK Peak Output Current DVO DT Average Output Voltage Tempco VIN (Min) Minimum Value of Input Voltage Required to Maintain Line Regulation f e 120 Hz 18.5V s VIN s 28.5V IO e 5 mA Units V mV mA 0.1 37 90 mV 51 dB 140 mA b 1.3 mV/§ C 16.7 17.5 V Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device outside of its stated operating conditions. Note 2: Human body model, 1.5 kX in series with 100 pF. Note 3: Power dissipation s 0.75W. Note 4: Recommended minimum load capacitance of 0.01 mF to limit high frequency noise. Note 5: Typical thermal resistance values for the packages are: H Package: Rth(J-C) e 26 § C/W, Rth(J-A) e 120 § C/W Z Package: Rth(J-C) e 60 § C/W, Rth(J-A) e 230 § C/W M Package: Rth(J-A) e 180 § C/W 7 Typical Performance Characteristics Maximum Average Power Dissipation (Z Package) Maximum Average Power Dissipation (H Package) Peak Output Current TL/H/7744 – 4 Dropout Voltage Ripple Rejection Output Impedance TL/H/7744 – 5 Quiescent Current Quiescent Current TL/H/7744 – 6 8 Equivalent Circuit LM78LXX TL/H/7744 – 7 Typical Applications Fixed Output Regulator Adjustable Output Regulator TL/H/7744 – 8 *Required if the regulator is located more than 3× from the power supply filter. TL/H/7744 – 9 ** See Note 4 in the electrical characteristics table. VOUT e 5V a (5V/R1 a IQ) R2 5V/R1 l 3 IQ, load regulation (Lr) & [(R1 a R2)/R1] (Lr of LM78L05) 9 Typical Applications (Continued) Current Regulator IOUT e (VOUT/R1) a IQ TL/H/7744 – 10 l IQ e 1.5 mA over line and load changes 5V, 500 mA Regulator with Short Circuit Protection *Solid tantalum. TL/H/7744 – 11 **Heat sink Q1. ***Optional: Improves ripple rejection and transient response. Load Regulation: 0.6% 0 s IL s 250 mA pulsed with tON e 50 ms. g 15V, 100 mA Dual Power Supply TL/H/7744 – 12 *Solid tantalum. Variable Output Regulator 0.5V-18V TL/H/7744 – 13 *Solid tantalum. VOUT e VG a 5V, R1 e ( b VIN/IQ LM78L05) VOUT e 5V (R2/R4) for (R2 a R3) e (R4 a R5) A 0.5V output will correspond to (R2/R4) e 0.1 (R3/R4) e 0.9 10 Physical Dimensions inches (millimeters) Metal Can Package (H) Order Number LM78L05ACH, LM78L12ACH or LM78L15ACH NS Package Number H03A S.O. Package (M) Order Number LM78L05ACM, LM78L12ACM or LM78L15ACM NS Package Number M08A 11 LM78LXX Series 3-Terminal Positive Regulators Physical Dimensions inches (millimeters) (Continued) Molded Offset TO-92 (Z) Order Number LM78L05ACZ, LM78L09ACZ, LM78L62ACZ, LM78L82ACZ, LM78L12ACZ or LM78L15ACZ NS Package Number Z03A LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 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