LM78LXX

LM78LXX Series 3-Terminal Positive Regulators February 2005 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 100mA 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 100mA 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 n See AN-1112 for micro SMD considerations Connection Diagrams SO-8 Plastic (M) (Narrow Body) (TO-92) Plastic Package (Z) 00774403 00774402 Top View 8-Bump micro SMD Bottom View micro SMD Marking Orientation 00774424 Top View (Bump Side Down) 00774433 Top View © 2005 National Semiconductor Corporation DS007744 www.national.com LM78LXX Series Ordering Information Package Order Number LM78L05IBP microSMD LM78L05IBPX LM78L09ITP LM78L09ITPX SOIC Narrow LM78L05ACM LM78L05ACMX LM78L12ACM LM78L12ACMX LM78L15ACM LM78L15ACMX TO-92 LM78L05ACZ LM78L62ACZ LM78L82ACZ LM78L09ACZ LM78L12ACZ LM78L15ACZ Output Voltage 5V 5V 9V 9V 5V 5V 12V 12V 15V 15V 5V 6.2V 8.2V 9V 12V 15V NSC Drawing BPA08AAB BPA08AAB TPA08AAA TPA08AAA M08A M08A M08A M08A M08A M08A Z03A Z03A Z03A Z03A Z03A Z03A Supplied As Reel of 250 Reel of 3000 Reel of 250 Reel of 3000 Rail of 95 Reel of 2500 Rail of 95 Reel of 2500 Rail of 95 Reel of 2500 Box of 1800 Box of 1800 Box of 1800 Box of 1800 Box of 1800 Box of 1800 www.national.com 2 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 ESD Susceptibility (Note 2) Internally Limited 35V −65˚C to +150˚C 1kV Operating Junction Temperature SO-8, TO-92 micro SMD Soldering Information Infrared or Convection (20 sec.) Wave Soldering (10 sec.) 235˚C 260˚C (lead time) 0˚C to 125˚C −40˚C to 85˚C LM78LXX Electrical Characteristics Limits in standard typeface are for TJ = 25˚C, Bold typeface applies over 0˚C to 125˚C for SO-8 and TO-92 packages, 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 = 40mA, CI = 0.33µF, CO = 0.1µF. LM78L05 Unless otherwise specified, VIN = 10V Symbol VO Output Voltage 7V ≤ VIN ≤ 20V 1mA ≤ IO ≤ 40mA (Note 3) 1mA ≤ IO ≤ 70mA (Note 3) ∆V O ∆V O IQ ∆IQ Vn Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection 8V ≤ VIN ≤ 20V 1mA ≤ IO ≤ 40mA f = 10 Hz to 100 kHz (Note 4) f = 120 Hz 8V ≤ VIN ≤ 16V 47 40 62 140 IO = 5mA −0.65 6.7 230.9 7 7V ≤ VIN ≤ 20V 8V ≤ VIN ≤ 20V 1mA ≤ IO ≤ 100mA 1mA ≤ IO ≤ 40mA 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 µV dB mA mV/˚C V ˚C/W mA mV 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) LM78L62AC Unless otherwise specified, VIN = 12V Symbol VO Output Voltage 8.5V ≤ VIN ≤ 20V 1mA ≤ IO ≤ 40mA (Note 3) 1mA ≤ IO ≤ 70mA (Note 3) Parameter Conditions Min 5.95 5.9 Typ 6.2 Max 6.45 6.5 Units V 5.9 6.5 3 www.national.com LM78LXX Series LM78LXX Electrical Characteristics Limits in standard typeface are for TJ = 25˚C, Bold typeface applies over 0˚C to 125˚C for SO-8 and TO-92 packages, 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 = 40mA, CI = 0.33µF, CO = 0.1µF. (Continued) LM78L62AC Symbol ∆VO ∆VO IQ ∆IQ Vn Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection 8V ≤ VIN ≤ 20V 1mA ≤ IO ≤ 40mA f = 10 Hz to 100 kHz (Note 4) f = 120 Hz 10V ≤ VIN ≤ 20V 40 50 46 140 IO = 5mA −0.75 7.9 (Continued) Unless otherwise specified, VIN = 12V Parameter Conditions 8.5V ≤ VIN ≤ 20V 9V ≤ VIN ≤ 20V 1mA ≤ IO ≤ 100mA 1mA ≤ IO ≤ 40mA Min Typ 65 55 13 6 2 Max 175 125 80 40 5.5 1.5 0.1 µV dB mA mV/˚C V mA mV Units IPK Peak Output Current Average Output Voltage Tempco VIN (Min) Minimum Value of Input Voltage Required to Maintain Line Regulation LM78L82AC Unless otherwise specified, VIN = 14V Symbol VO Output Voltage 11V ≤ VIN ≤ 23V 1mA ≤ IO ≤ 40mA (Note 3) 1mA ≤ IO ≤ 70mA (Note 3) ∆VO ∆V O IQ ∆IQ Vn Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection 12V ≤ VIN ≤ 23V 1mA ≤ IO ≤ 40mA f = 10 Hz to 100 kHz (Note 4) f = 120 Hz 12V ≤ VIN ≤ 22V 39 60 45 140 IO = 5mA −0.8 9.9 11V ≤ VIN ≤ 23V 12V ≤ VIN ≤ 23V 1mA ≤ IO ≤ 100mA 1mA ≤ IO ≤ 40mA 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 µV dB mA mV/˚C V mA mV IPK Peak Output Current Average Output Voltage Tempco VIN (Min) Minimum Value of Input Voltage Required to Maintain Line Regulation www.national.com 4 LM78LXX Series LM78LXX Electrical Characteristics Limits in standard typeface are for TJ = 25˚C, Bold typeface applies over 0˚C to 125˚C for SO-8 and TO-92 packages, 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 = 40mA, CI = 0.33µF, CO = 0.1µF. (Continued) LM78L09AC Unless otherwise specified, VIN = 15V Symbol VO Output Voltage 11.5V ≤ VIN ≤ 24V 1mA ≤ IO ≤ 40mA (Note 3) 1mA ≤ IO ≤ 70mA (Note 3) ∆V O ∆V O IQ ∆I Q Vn Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection f = 120 Hz 15V ≤ VIN ≤ 25V 38 11.5V ≤ VIN ≤ 24V 1mA ≤ IO ≤ 40mA 70 44 140 IO = 5mA −0.9 10.7 11.5V ≤ VIN ≤ 24V 13V ≤ VIN ≤ 24V 1mA ≤ IO ≤ 100mA 1mA ≤ IO ≤ 40mA Parameter Conditions Min 8.64 8.55 Typ 9.0 Max 9.36 9.45 Units V 8.55 100 90 20 10 2 9.45 200 150 90 45 5.5 1.5 0.1 µV dB mA mV/˚C V mA mV IPK Peak Output Current Average Output Voltage Tempco VIN (Min) Minimum Value of Input Voltage Required to Maintain Line Regulation LM78L12AC Unless otherwise specified, VIN = 19V Symbol VO Output Voltage 14.5V ≤ VIN ≤ 27V 1mA ≤ IO ≤ 40mA (Note 3) 1mA ≤ IO ≤ 70mA (Note 3) ∆V O ∆V O IQ ∆I Q Vn Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection f = 120 Hz 15V ≤ VIN ≤ 25 40 16V ≤ VIN ≤ 27V 1mA ≤ IO ≤ 40mA 80 54 140 IO = 5mA −1.0 14.5V ≤ VIN ≤ 27V 16V ≤ VIN ≤ 27V 1mA ≤ IO ≤ 100mA 1mA ≤ IO ≤ 40mA 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 mA mV IPK Peak Output Current Average Output Voltage Tempco 5 www.national.com LM78LXX Series LM78LXX Electrical Characteristics Limits in standard typeface are for TJ = 25˚C, Bold typeface applies over 0˚C to 125˚C for SO-8 and TO-92 packages, 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 = 40mA, CI = 0.33µF, CO = 0.1µF. (Continued) LM78L12AC Symbol VIN (Min) (Continued) Unless otherwise specified, VIN = 19V Parameter Minimum Value of Input Voltage Required to Maintain Line Regulation Conditions Min Typ 13.7 Max 14.5 Units V LM78L15AC Unless otherwise specified, VIN = 23V Symbol VO Output Voltage 17.5V ≤ VIN ≤ 30V 1mA ≤ IO ≤ 40mA (Note 3) 1mA ≤ IO ≤ 70mA (Note 3) ∆VO ∆VO IQ ∆IQ Vn Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection f = 120 Hz 18.5V ≤ VIN ≤ 28.5V 37 20V ≤ VIN ≤ 30V 1mA ≤ IO ≤ 40mA 90 51 140 IO = 5mA −1.3 16.7 17.5 17.5V ≤ VIN ≤ 30V 20V ≤ VIN ≤ 30V 1mA ≤ IO ≤ 100mA 1mA ≤ IO ≤ 40mA 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 IPK Peak Output Current Average Output Voltage Tempco VIN (Min) Minimum Value of Input Voltage Required to Maintain Line Regulation 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 100pF. Note 3: Power dissipation ≤ 0.75W. Note 4: Recommended minimum load capacitance of 0.01µF 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 www.national.com 6 LM78LXX Series Typical Performance Characteristics Maximum Average Power Dissipation (Z Package) Peak Output Current 00774414 00774416 Dropout Voltage Ripple Rejection 00774417 00774418 Output Impedance Quiescent Current 00774419 00774420 7 www.national.com LM78LXX Series Typical Performance Characteristics (Continued) Quiescent Current 00774421 Equivalent Circuit LM78LXX 00774407 www.national.com 8 LM78LXX Series Typical Applications Fixed Output Regulator 00774408 *Required if the regulator is located more than 3" from the power supply filter. **See (Note 4) in the electrical characteristics table. Adjustable Output Regulator 00774409 VOUT = 5V + (5V/R1 + IQ) R2 5V/R1 > 3 IQ, load regulation (Lr) ≈ [(R1 + R2)/R1] (Lr of LM78L05) Current Regulator 00774410 IOUT = (VOUT/R1) + IQ > IQ = 1.5mA over line and load changes 5V, 500mA Regulator with Short Circuit Protection 00774411 *Solid tantalum. **Heat sink Q1. ***Optional: Improves ripple rejection and transient response. Load Regulation: 0.6% 0 ≤ IL ≤ 250mA pulsed with tON = 50ms. 9 www.national.com LM78LXX Series Typical Applications (Continued) ± 15V, 100mA Dual Power Supply 00774412 *Solid tantalum. Variable Output Regulator 0.5V-18V 00774413 *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 www.national.com 10 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 A1 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 for LM78L05IBP Only NS Package Number BPA08AAB X1 = 1.285mm X2 = 1.285mm X3 = 0.850mm 11 www.national.com LM78LXX Series Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 8-Bump micro SMD for LM78L09ITP Only NS Package Number TPA08AAA X1 = 1.285mm X2 = 1.285mm X3 = 0.500mm www.national.com 12 LM78LXX Series Physical Dimensions inches (millimeters) unless otherwise noted (Continued) S.O. Package (M) NS Package Number M08A 13 www.national.com LM78LXX Series 3-Terminal Positive Regulators Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Molded Offset TO-92 (Z) NS Package Number Z03A 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. For the most current product information visit us at www.national.com. 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. 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