78L05

LM78LXX Series 3-Terminal Positive Regulators January 2000 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 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. 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 Top View 8-Bump micro SMD Bottom View 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 Absolute Maximum Ratings (Note 1) 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 Operating Junction Temperature SO-8 micro SMD Soldering Information Infrared or Convection (20 sec.) Wave Soldering (10 sec.) ESD Susceptibility (Note 2) 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 Output Voltage 7V ≤ VIN ≤ 20V 1 mA ≤ IO ≤ 40 mA (Note 3) 1 mA ≤ IO ≤ 70 mA (Note 3) ∆VO ∆VO IQ ∆IQ Vn Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection IPK Peak Output Current Average Output Voltage Tempco VIN (Min) θJA Minimum Value of Input Voltage Required to Maintain Line Regulation Thermal Resistance (8-Bump micro SMD) IO = 5 mA 8V ≤ VIN ≤ 20V 1 mA ≤ IO ≤ 40 mA f = 10 Hz to 100 kHz (Note 4) f = 120 Hz 8V ≤ VIN ≤ 16V 7V ≤ VIN ≤ 20V 8V ≤ VIN ≤ 20V 1 mA ≤ IO ≤ 100 mA 1 mA ≤ IO ≤ 40 mA Parameter Conditions Min 4.8 4.75 Typ 5 Max 5.2 5.25 Units V 4.75 18 10 20 5 3 5.25 75 54 60 30 5 1.0 0.1 40 µV dB mA mV/˚C 7 V ˚C/W mA mV 47 62 140 −0.65 6.7 230.9 LM78L62AC Unless otherwise specified, VIN = 12V Symbol VO Output Voltage 8.5V ≤ VIN ≤ 20V 1 mA ≤ IO ≤ 40 mA (Note 3) 1 mA ≤ IO ≤ 70 mA (Note 3) ∆VO ∆VO Line Regulation Load Regulation 8.5V ≤ VIN ≤ 20V 9V ≤ VIN ≤ 20V 1 mA ≤ IO ≤ 100 mA 1 mA ≤ IO ≤ 40 mA www.national.com 2 Parameter Conditions Min 5.95 5.9 Typ 6.2 Max 6.45 6.5 Units V 5.9 65 55 13 6 6.5 175 125 80 40 mV LM78LXX Series LM78L62AC Symbol IQ ∆IQ Vn (Continued) Unless otherwise specified, VIN = 12V Parameter Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection IPK Peak Output Current Average Output Voltage Tempco VIN (Min) Minimum Value of Input Voltage Required to Maintain Line Regulation IO = 5 mA 8V ≤ VIN ≤ 20V 1 mA ≤ IO ≤ 40 mA f = 10 Hz to 100 kHz (Note 4) f = 120 Hz 10V ≤ VIN ≤ 20V Conditions Min Typ 2 Max 5.5 1.5 0.1 50 40 46 140 −0.75 7.9 µV dB mA mV/˚C V mA Units LM78L82AC Unless otherwise specified, VIN = 14V Symbol VO Output Voltage 11V ≤ VIN ≤ 23V 1 mA ≤ IO ≤ 40 mA (Note 3) 1 mA ≤ IO ≤ 70 mA (Note 3) ∆VO ∆VO IQ ∆IQ Vn Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection IPK Peak Output Current Average Output Voltage Tempco VIN (Min) Minimum Value of Input Voltage Required to Maintain Line Regulation IO = 5 mA 12V ≤ VIN ≤ 23V 1 mA ≤ IO ≤ 40 mA f = 10 Hz to 100 kHz (Note 4) f = 120 Hz 12V ≤ VIN ≤ 22V 11V ≤ VIN ≤ 23V 12V ≤ VIN ≤ 23V 1 mA ≤ IO ≤ 100 mA 1 mA ≤ IO ≤ 40 mA Parameter Conditions Min 7.87 7.8 Typ 8.2 Max 8.53 8.6 Units V 7.8 80 70 15 8 2 8.6 175 125 80 40 5.5 1.5 0.1 60 µV dB mA mV/˚C V mA mV 39 45 140 −0.8 9.9 LM78L09AC Unless otherwise specified, VIN = 15V Symbol VO Output Voltage 11.5V ≤ VIN ≤ 24V 1 mA ≤ IO ≤ 40 mA (Note 3) 1 mA ≤ IO ≤ 70 mA (Note 3) Parameter Conditions Min 8.64 8.55 Typ 9.0 Max 9.36 9.45 Units V 8.55 9.45 3 www.national.com LM78LXX Series LM78L09AC Symbol ∆VO ∆VO IQ ∆IQ Vn (Continued) Unless otherwise specified, VIN = 15V Parameter Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection IPK Peak Output Current Average Output Voltage Tempco VIN (Min) Minimum Value of Input Voltage Required to Maintain Line Regulation IO = 5 mA f = 120 Hz 15V ≤ VIN ≤ 25V 38 11.5V ≤ VIN ≤ 24V 1 mA ≤ IO ≤ 40 mA 70 44 140 −0.9 10.7 Conditions 11.5V ≤ VIN ≤ 24V 13V ≤ VIN ≤ 24V 1 mA ≤ IO ≤ 100 mA 1 mA ≤ IO ≤ 40 mA Min Typ 100 90 20 10 2 Max 200 150 90 45 5.5 1.5 0.1 µV dB mA mV/˚C V mA mV Units LM78L12AC Unless otherwise specified, VIN = 19V Symbol VO Output Voltage 14.5V ≤ VIN ≤ 27V 1 mA ≤ IO ≤ 40 mA (Note 3) 1 mA ≤ IO ≤ 70 mA (Note 3) ∆VO ∆VO IQ ∆IQ Vn Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection IPK Peak Output Current Average Output Voltage Tempco VIN (Min) Minimum Value of Input Voltage Required to Maintain Line Regulation IO = 5 mA f = 120 Hz 15V ≤ VIN ≤ 25 40 16V ≤ VIN ≤ 27V 1 mA ≤ IO ≤ 40 mA 80 54 140 −1.0 13.7 14.5 14.5V ≤ VIN ≤ 27V 16V ≤ VIN ≤ 27V 1 mA ≤ IO ≤ 100 mA 1 mA ≤ IO ≤ 40 mA Parameter Conditions Min 11.5 11.4 Typ 12 Max 12.5 12.6 Units V 11.4 30 20 30 10 3 12.6 180 110 100 50 5 1 0.1 µV dB mA mV/˚C V mA mV www.national.com 4 LM78LXX Series LM78L15AC Unless otherwise specified, VIN = 23V Symbol VO Output Voltage 17.5V ≤ VIN ≤ 30V 1 mA ≤ IO ≤ 40 mA (Note 3) 1 mA ≤ IO ≤ 70 mA (Note 3) ∆VO ∆VO IQ ∆IQ Vn Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection IPK Peak Output Current Average Output Voltage Tempco VIN (Min) Minimum Value of Input Voltage Required to Maintain Line Regulation IO = 5 mA f = 120 Hz 18.5V ≤ VIN ≤ 28.5V 37 20V ≤ VIN ≤ 30V 1 mA ≤ IO ≤ 40 mA 90 51 140 −1.3 16.7 17.5 17.5V ≤ VIN ≤ 30V 20V ≤ VIN ≤ 30V 1 mA ≤ IO ≤ 100 mA 1 mA ≤ IO ≤ 40 mA Parameter Conditions Min 14.4 14.25 Typ 15.0 Max 15.6 15.75 Units V 14.25 37 25 35 12 3 15.75 250 140 150 75 5 1 0.1 µV dB mA mV/˚C V mA mV 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 Typical Performance Characteristics Maximum Average Power Dissipation (Z Package) Peak Output Current Dropout Voltage DS007744-17 DS007744-16 DS007744-14 Ripple Rejection Output Impedance Quiescent Current DS007744-18 DS007744-19 DS007744-20 Quiescent Current DS007744-21 www.national.com 6 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: support@nsc.com www.national.com National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: europe.support@nsc.com 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. National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: sea.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.