LM78LXX Series 3-Terminal Positive Regulators General Description 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 plastic TO-92 (Z) package, the plastic SO-8 (M) package and a chip sized package (8-Bump micro SMD) using National’s micro SMD package technology. 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 pro- tection 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. Features n LM78L05 in micro SMD package n Output voltage tolerances of ± 5% over the temperature range n Output current of 100 mA n Internal thermal overload protection n Output transistor safe area protection n Internal short circuit current limit n Available in plastic TO-92 and plastic SO-8 low profile packages n No external components n Output voltages of 5.0V, 6.2V, 8.2V, 9.0V, 12V, 15V Connection Diagrams SO-8 Plastic (M) (Narrow Body) (TO-92) Plastic Package (Z) DS007744-3 DS007744-2 Bottom View Top View 8-Bump micro SMD micro SMD Marking Orientation DS007744-24 Top View (Bump Side Down) DS007744-33 Top View © 2000 National Semiconductor Corporation DS007744 www.national.com LM78LXX Series 3-Terminal Positive Regulators January 2000 LM78LXX Series Absolute Maximum Ratings (Note 1) Operating Junction Temperature SO-8 micro SMD Soldering Information Infrared or Convection (20 sec.) Wave Soldering (10 sec.) ESD Susceptibility (Note 2) 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 Storage Temperature Internally Limited 35V −65˚C to +150˚C 0˚C to 125˚C −40˚C to 85˚C 235˚C 260˚C (lead time) 1kV LM78LXX Electrical Characteristics Limits in standard typeface are for TJ = 25˚C, Bold typeface applies over 0˚C to 125˚C for SO-8 package and −40˚C to 85˚C for micro SMD package. Limits are guaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless otherwise specified: IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF. LM78L05 Unless otherwise specified, VIN = 10V Symbol VO ∆VO ∆VO Parameter Line Regulation Load Regulation IQ Quiescent Current ∆IQ Quiescent Current Change Vn Conditions Output Voltage Output Noise Voltage Ripple Rejection Min Typ Max 4.8 5 5.2 7V ≤ VIN ≤ 20V 1 mA ≤ IO ≤ 40 mA (Note 3) 4.75 5.25 1 mA ≤ IO ≤ 70 mA (Note 3) 4.75 5.25 7V ≤ VIN ≤ 20V 18 75 8V ≤ VIN ≤ 20V 10 54 1 mA ≤ IO ≤ 100 mA 20 60 1 mA ≤ IO ≤ 40 mA 5 30 3 1.0 1 mA ≤ IO ≤ 40 mA f = 10 Hz to 100 kHz (Note 4) f = 120 Hz 8V ≤ VIN ≤ 16V 0.1 Peak Output Current IPK Average Output Voltage Tempco VIN (Min) Minimum Value of Input Voltage Required to Maintain Line Regulation θJA Thermal Resistance (8-Bump micro SMD) IO = 5 mA V mV 5 8V ≤ VIN ≤ 20V 47 Units mA 40 µV 62 dB 140 mA −0.65 mV/˚C 6.7 7 230.9 V ˚C/W LM78L62AC Unless otherwise specified, VIN = 12V Symbol VO ∆VO ∆VO www.national.com Parameter Conditions Output Voltage Line Regulation Load Regulation Min Typ Max 5.95 6.2 6.45 8.5V ≤ VIN ≤ 20V 1 mA ≤ IO ≤ 40 mA (Note 3) 5.9 6.5 1 mA ≤ IO ≤ 70 mA (Note 3) 5.9 6.5 8.5V ≤ VIN ≤ 20V 65 175 9V ≤ VIN ≤ 20V 55 125 1 mA ≤ IO ≤ 100 mA 13 80 1 mA ≤ IO ≤ 40 mA 6 40 2 Units V mV (Continued) Unless otherwise specified, VIN = 12V Symbol Parameter IQ Quiescent Current ∆IQ Quiescent Current Change Vn Output Noise Voltage Ripple Rejection Conditions Min Average Output Voltage Tempco VIN (Min) Max 2 5.5 8V ≤ VIN ≤ 20V 1.5 1 mA ≤ IO ≤ 40 mA f = 10 Hz to 100 kHz (Note 4) f = 120 Hz 10V ≤ VIN ≤ 20V 0.1 40 Peak Output Current IPK Typ IO = 5 mA Minimum Value of Input Voltage Required to Maintain Line Regulation Units mA 50 µV 46 dB 140 mA −0.75 mV/˚C 7.9 V LM78L82AC Unless otherwise specified, VIN = 14V Symbol VO Parameter Conditions Output Voltage Min Typ Max 7.87 8.2 8.53 11V ≤ VIN ≤ 23V 1 mA ≤ IO ≤ 40 mA (Note 3) 7.8 8.6 1 mA ≤ IO ≤ 70 mA (Note 3) 7.8 8.6 ∆VO Line Regulation 11V ≤ VIN ≤ 23V 80 175 12V ≤ VIN ≤ 23V 70 125 ∆VO Load Regulation 1 mA ≤ IO ≤ 100 mA 15 80 IQ Quiescent Current ∆IQ Quiescent Current Change 1 mA ≤ IO ≤ 40 mA Vn Output Noise Voltage Ripple Rejection Average Output Voltage Tempco VIN (Min) 40 5.5 12V ≤ VIN ≤ 23V 1.5 1 mA ≤ IO ≤ 40 mA f = 10 Hz to 100 kHz (Note 4) f = 120 Hz 12V ≤ VIN ≤ 22V 0.1 39 Peak Output Current IPK 8 2 IO = 5 mA Minimum Value of Input Voltage Required to Maintain Line Regulation Units V mV mA 60 µV 45 dB 140 mA −0.8 mV/˚C 9.9 V LM78L09AC Unless otherwise specified, VIN = 15V Symbol VO Parameter Conditions Output Voltage Min Typ Max 8.64 9.0 9.36 11.5V ≤ VIN ≤ 24V 1 mA ≤ IO ≤ 40 mA (Note 3) 8.55 9.45 1 mA ≤ IO ≤ 70 mA (Note 3) 8.55 9.45 3 Units V www.national.com LM78LXX Series LM78L62AC LM78LXX Series LM78L09AC (Continued) Unless otherwise specified, VIN = 15V Symbol ∆VO Parameter Line Regulation ∆VO Load Regulation IQ Quiescent Current ∆IQ Quiescent Current Change Vn Typ Max 11.5V ≤ VIN ≤ 24V Conditions Min 100 200 13V ≤ VIN ≤ 24V 90 150 1 mA ≤ IO ≤ 100 mA 20 90 1 mA ≤ IO ≤ 40 mA 10 45 2 5.5 11.5V ≤ VIN ≤ 24V 1.5 1 mA ≤ IO ≤ 40 mA 0.1 Output Noise Voltage Ripple Rejection f = 120 Hz 15V ≤ VIN ≤ 25V 38 Peak Output Current IPK Average Output Voltage Tempco VIN (Min) IO = 5 mA Minimum Value of Input Voltage Required to Maintain Line Regulation Units mV mA 70 µV 44 dB 140 mA −0.9 mV/˚C 10.7 V LM78L12AC Unless otherwise specified, VIN = 19V Symbol VO ∆VO Parameter Conditions Output Voltage Line Regulation ∆VO Load Regulation IQ Quiescent Current ∆IQ Quiescent Current Change Min Typ Max 11.5 12 12.5 14.5V ≤ VIN ≤ 27V 1 mA ≤ IO ≤ 40 mA (Note 3) 11.4 12.6 1 mA ≤ IO ≤ 70 mA (Note 3) 11.4 12.6 14.5V ≤ VIN ≤ 27V 30 180 16V ≤ VIN ≤ 27V 20 110 1 mA ≤ IO ≤ 100 mA 30 100 1 mA ≤ IO ≤ 40 mA 10 50 3 5 16V ≤ VIN ≤ 27V 1 1 mA ≤ IO ≤ 40 mA Vn IPK Peak Output Current Average Output Voltage Tempco VIN (Min) www.national.com f = 120 Hz 15V ≤ VIN ≤ 25 IO = 5 mA Minimum Value of Input Voltage Required to Maintain Line Regulation mV mA 40 80 µV 54 dB 140 mA −1.0 mV/˚C 13.7 4 V 0.1 Output Noise Voltage Ripple Rejection Units 14.5 V Unless otherwise specified, VIN = 23V Symbol VO Parameter Conditions Output Voltage ∆VO Line Regulation ∆VO Load Regulation IQ Quiescent Current ∆IQ Quiescent Current Change Min Typ Max 14.4 15.0 15.6 17.5V ≤ VIN ≤ 30V 1 mA ≤ IO ≤ 40 mA (Note 3) 14.25 15.75 1 mA ≤ IO ≤ 70 mA (Note 3) 14.25 15.75 17.5V ≤ VIN ≤ 30V 37 250 20V ≤ VIN ≤ 30V 25 140 1 mA ≤ IO ≤ 100 mA 35 150 1 mA ≤ IO ≤ 40 mA 12 75 3 5 20V ≤ VIN ≤ 30V Vn f = 120 Hz 18.5V ≤ VIN ≤ 28.5V Peak Output Current IPK Average Output Voltage Tempco VIN (Min) IO = 5 mA Minimum Value of Input Voltage Required to Maintain Line Regulation mV 0.1 Output Noise Voltage Ripple Rejection V mA 1 1 mA ≤ IO ≤ 40 mA Units 37 90 µV 51 dB 140 mA −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 kΩ in series with 100 pF. Note 3: Power dissipation ≤ 0.75W. Note 4: Recommended minimum load capacitance of 0.01 µF to limit high frequency noise. Note 5: Typical thermal resistance values for the packages are: Z Package: θJC = 60 ˚C/W, = θJA = 230 ˚C/W M Package: θJA = 180 ˚C/W micro SMD Package: θJA = 230.9˚C/W 5 www.national.com LM78LXX Series LM78L15AC LM78LXX Series Typical Performance Characteristics Maximum Average Power Dissipation (Z Package) Dropout Voltage Peak Output Current DS007744-17 DS007744-16 DS007744-14 Ripple Rejection Output Impedance DS007744-18 DS007744-19 Quiescent Current DS007744-21 www.national.com Quiescent Current 6 DS007744-20 LM78LXX Series Equivalent Circuit LM78LXX DS007744-7 Typical Applications Fixed Output Regulator DS007744-8 *Required if the regulator is located more than 3" from the power supply filter. **See (Note 4) in the electrical characteristics table. 7 www.national.com LM78LXX Series Typical Applications (Continued) Adjustable Output Regulator DS007744-9 VOUT = 5V + (5V/R1 + IQ) R2 5V/R1 > 3 IQ, load regulation (Lr) ≈ [(R1 + R2)/R1] (Lr of LM78L05) Current Regulator DS007744-10 IOUT = (VOUT/R1) + IQ > IQ = 1.5 mA over line and load changes 5V, 500 mA Regulator with Short Circuit Protection DS007744-11 *Solid tantalum. **Heat sink Q1. ***Optional: Improves ripple rejection and transient response. Load Regulation: 0.6% 0 ≤ IL ≤ 250 mA pulsed with tON = 50 ms. ± 15V, 100 mA Dual Power Supply DS007744-12 *Solid tantalum. www.national.com 8 LM78LXX Series Typical Applications (Continued) Variable Output Regulator 0.5V-18V DS007744-13 *Solid tantalum. VOUT = VG + 5V, R1 = (−VIN/IQ LM78L05) VOUT = 5V (R2/R4) for (R2 + R3) = (R4 + R5) A 0.5V output will correspond to (R2/R4) = 0.1 (R3/R4) = 0.9 9 www.national.com LM78LXX Series Physical Dimensions inches (millimeters) unless otherwise noted NOTES: UNLESS OTHERWISE SPECIFIED 1. EPOXY COATING 2. 63Sn/37Pb EUTECTIC BUMP 3. RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD. 4. PIN 1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION. REMAINING PINS ARE NUMBERED COUNTERCLOCKWISE. 5. XXX IN DRAWING NUMBER REPRESENTS PACKAGE SIZE VARIATION WHERE X1 IS PACKAGE WIDTH, X2 IS PACKAGE LENGTH AND X3 IS PACKAGE HEIGHT. 6. REFERENCE JEDEC REGISTRATION MO-211, VARIATION BC. 8-Bump micro SMD Order Number LM78L05IBP or LM78L05IBPX NS Package Number BPA08AAA X1 = 1.285 X2 = 1.285 X3 = 0.7 www.national.com 10 LM78LXX Series Physical Dimensions inches (millimeters) unless otherwise noted (Continued) S.O. Package (M) Order Number LM78L05ACM, LM78L12ACM or LM78L15ACM NS Package Number M08A Molded Offset TO-92 (Z) Order Number LM78L05ACZ, LM78L09ACZ, LM78L12ACZ, LM78L15ACZ, LM78L62ACZ or LM78L82ACZ NS Package Number Z03A 11 www.national.com LM78LXX Series 3-Terminal Positive Regulators Notes 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 AND GENERAL COUNSEL 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. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: [email protected] www.national.com National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: [email protected] Deutsch Tel: +49 (0) 1 80-530 85 85 English Tel: +49 (0) 1 80-532 78 32 Français Tel: +49 (0) 1 80-532 93 58 Italiano Tel: +49 (0) 1 80-534 16 80 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 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