LM340LAZ-5.0

LM140L LM340L Series 3-Terminal Positive Regulators February 1995 LM140L LM340L Series 3-Terminal Positive Regulators General Description The LM140L series of three terminal positive regulators is available with several fixed output voltages making them useful in a wide range of applications The LM140LA is an improved version of the LM78LXX series with a tighter output voltage tolerance (specified over the full military temperature range) higher ripple rejection better regulation and lower quiescent current The LM140LA regulators have g 2% VOUT specification 0 04% V line regulation and 0 01% mA load regulation When used as a zener diode resistor combination replacement the LM140LA 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 LM140LA to be used in logic systems instrumentation Hi-Fi and other solid state electronic equipment Although designed primarily as fixed voltage regulators these devices can be used with external components to obtain adjustable voltages and currents The LM140LA LM340LA are available in the low profile metal three lead TO-39 (H) and the LM340LA are also available in the plastic TO-92 (Z) 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 transistor is provided to limit internal power dissipation If internal power dissipation becomes too high for the heat sinking provided the thermal shut-down circuit takes over preventing the IC from overheating For applications requiring other voltages see LM117L Data Sheet Features Y Y Y Y Y Y Y Y Line regulation of 0 04% V Load regulation of 0 01% mA Output voltage tolerances of g 2% at Tj e 25 C and g 4% over the temperature range (LM140LA) g 3% over the temperature range (LM340LA) Output current of 100 mA Internal thermal overload protection Output transistor safe area protection Internal short circuit current limit Available in metal TO-39 low profile package (LM140LA LM340LA) and plastic TO-92 (LM340LA) Output Voltage Options LM140LA-5 0 LM140LA-12 LM140LA-15 5V 12V 15V LM340LA-5 0 LM340LA-12 LM340LA-15 5V 12V 15V Connection Diagrams TO-39 Metal Can Package (H) TL H 7782 – 2 Bottom View Order Number LM140LAH-5 0 LM140LAH-5 0 883 LM140LAH-12 LM140LAH-12 883 LM140LAH-15 LM140LAH-15 883 LM340LAH-5 0 LM340LAH-12 or LM340LAH-15 See NS Package Number H03A TO-92 Plastic Package (Z) TL H 7782 – 3 Bottom View Order Number LM340LAZ-5 0 LM340LAZ-12 or LM340LAZ-15 See NS Package Number Z03A C1995 National Semiconductor Corporation TL H 7782 RRD-B30M115 Printed in U S A Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications (Note 4) Input Voltage 35V Internal Power Dissipation (Note 1) Internally Limited Operating Temperature Range LM140LA LM340LA Maximum Junction Temperature Storage Temperature Range Metal Can (H package) Molded TO-92 Lead Temperature (Soldering 10 sec ) Metal Can Plastic TO-92 b 55 C to a 125 C 0 C to a 70 C a 150 C b 65 C to a 150 C b 55 C to a 150 C a 300 C a 230 C Electrical Characteristics Test conditions unless otherwise specified TA e b55 C to a 125 C (LM140LA) TA e 0 C to a 70 C (LM340LA) IO e 40 mA CIN e 0 33 mF CO e 0 01 mF Output Voltage Option Input Voltage (unless otherwise noted) Symbol VO Parameter Output Voltage Output Voltage Over Temp (Note 3) Tj e 25 C LM140LA IO e 1 b 100 mA Conditions 5 0V 10V Min Typ Max 49 48 5 Min 12V 19V Typ Max 12 Min 15V 23V Typ Max 15 15 3 15 6 V Units 5 1 11 75 52 11 5 12 25 14 7 12 5 14 4 (7 2 – 20) LM340LA IO e 1 b 100 mA or IO e 1 b 40 mA and VIN e ( )V IO e 40 mA VIN e ( )V IO e 100 mA VIN e ( )V 4 85 (7 – 20) 18 (7 – 25) 18 (7 5 – 25) 5 20 12 Tj e 25 C Tj e 125 C DLoad IO e 1 b 40 mA DLine VIN e ( )V 3 45 42 01 05 (7 5 – 25) 40 55 62 (7 5 – 18) 47 20 40 30 30 (14 5 – 27) (17 6 – 30) 15 45 5 15 11 65 12 35 14 55 (14 3 – 27) 30 (14 2 – 30) 30 (14 5 – 30) 10 30 24 3 45 42 01 05 (14 3 – 30) 80 54 (14 5 – 25) 45 40 80 65 65 (17 5 – 30) 37 (17 3 – 30) 37 (17 5 – 30) 12 35 30 31 45 42 01 05 (17 5 – 30) 90 52 mV dB mA 50 100 mV 1000 hrs mA 70 mV 70 D VO Line Regulation Tj e 25 C Load Regulation Tj e 25 C IO e 1 b 40 mA IO e 1 b 100 mA Long Term Stability IO Quiescent Current D IQ Quiescent Tj e 25 C Current Change VN DVIN DVOUT Output Noise Voltage Tj e 25 C (Note 2) f e 10 Hz–10 kHz Ripple Rejection f e 120 Hz VIN e ( )V (17 5 – 28 5) Input Voltage Required to Maintain Line Regulation Tj e 25 C IO e 40 mA 7 14 2 17 3 V Note 1 Thermal resistance of H-package is typically 26 C W ijC 250 C W ijA still air and 94 C W ijA 400 lf min of air For the Z-package is 60 C W ijC 232 C W ijA still air and 88 C W ijA at 400 lf min of air The maximum junction temperature shall not exceed 125 C on electrical parameters Note 2 It is recommended that a minimum load capacitor of 0 01 mF be used to limit the high frequency noise bandwidth Note 3 The temperature coefficient of VOUT is typically within 0 01% VO C Note 4 A military RETS specification is available upon request At the time of printing the LM140LA-5 0 -12 and -15 RETS specifications complied with the Min and Max limits in this table The LM140LAH-5 0 LM140LAH-12 and LM140LAH-15 may also be procured as Standard Military Drawings 2 Typical Performance Characteristics Maximum Average Power Dissipation Maximum Average Power Dissipation (Metal Can Package) Maximum Average Power Dissipation (Plastic Package) Peak Output Current Dropout Voltage Output Impedance Ripple Rejection Quiescent Current Quiescent Current TL H 7782 – 4 Typical Applications Fixed Output Regulator Adjustable Output Regulator TL H 7782 – 5 Required if the regulator is located far from the power supply filter See note 3 in the electrical characteristics table TL H 7782 – 6 VOUT e 5V a (5V R1 a IO) R2 5V R1 e 3 IO load regulation (L ) (R1 a R2) R1 (L of LM140LA-5 0) 3 Equivalent Circuit TL H 7782 – 1 4 Physical Dimensions inches (millimeters) TO-39 Metal Can Package (H) Order Number LM140LAH-5 0 LM140LAH-5 0 883 LM140LAH-12 LM140LAH-12 883 LM140LAH-15 LM140LAH-15 883 LM340LAH-5 0 LM340LAH-12 or LM340LAH-15 NS Package Number H03A 5 LM140L LM340L Series 3-Terminal Positive Regulators Physical Dimensions inches (millimeters) (Continued) TO-92 Plastic Package (Z) Order Number LM340LAZ-5 0 LM340LAZ-12 or LM340LAZ-15 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 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81-043-299-2309 Fax 81-043-299-2408 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