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LM2940IMP-5.0 |LM2940IMP50NSCN/a14avai1A Low Dropout Regulator
LM2940IMPX-8.0 |LM2940IMPX80NSN/a20000avai1A Low Dropout Regulator
LM2940LDX-8.0 |LM2940LDX80N/a100avai1A Low Dropout Regulator
LM2940SX-12 |LM2940SX12NSN/a95avai1A Low Dropout Regulator


LM2940IMPX-8.0 ,1A Low Dropout Regulatorapplications, the LM2940 and all regulated circuitry areprotected from reverse battery installation ..
LM2940LD-10 ,1A Low Dropout RegulatorFEATURES SECTIONoProcessing Subgrp Description Temp ( C)MIL-STD-883, Method 5004 1 Static tests ..
LM2940LD-12 ,1A Low Dropout RegulatorFeatures- Dropout voltage typically 0.5V @ Io = 1A - Output current in excess of 1A - Output voltag ..
LM2940LD-15 ,1A Low Dropout Regulatorapplications, the LM2940 and all regulated circuitry areprotected from reverse battery installation ..
LM2940LD-5.0 ,1A Low Dropout Regulatorfeatures such as short circuit and thermal overload protection are alsoprovided. Industry Part Numb ..
LM2940LD-5.0 ,1A Low Dropout Regulatorfeatures such as short circuit andentire temperature range. Furthermore, a quiescent currentthermal ..
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LM2940IMP-5.0-LM2940IMPX-8.0-LM2940LDX-8.0-LM2940SX-12
1A Low Dropout Regulator
Original Creation Date: 07/22/96
Last Update Date: 10/08/99
Last Major Revision Date: 07/22/96MNLM2940-12-X REV 1A1
MICROCIRCUIT DATA SHEET
1A LOW DROPOUT REGULATOR
General Description

The LM2940 positive voltage regulator features the ability to source 1A of ouput current
with a dropout voltage of typically 0.5V and a maximum of 1V over the entire temperature
range. Furthermore, a quiescent current reduction circuit has been included which reduces
the ground current when the differential between the input voltage and the output voltage
exceeds approximately 3V. The quiescent current with 1A of output current and an
input-output differential of 5V is therefore only 30 mA. Higher quiescent currents only
exist when the regulator is in the dropout mode (Vin - Vout < 3V).
Designed also for vehicular applications, the LM2940 and all regulated circuitry are
protected from reverse battery installations or 2-battery jumps. During line transients,
such as load dump when the input voltage can momentarily exceed the specified maximum
operating voltage, the regulator will automaically shut down to protect both the internal
circuits and the load. The LM2940 cannot be harmed by temporary mirror-image insertion.
Familiar regulator features such as short circuit and thermal overload protection are also
provided.
NS Part Numbers

LM2940J-12/883
LM2940K-12/883
LM2940WG-12/883
Industry Part Number

LM2940
Prime Die

LM2940
Controlling Document

SEE FEATURE SECTION
Processing

MIL-STD-883, Method 5004
Quality Conformance Inspection

MIL-STD-883, Method 5005
Subgrp Description Temp ( C)
o Static tests at +25 Static tests at +125 Static tests at -55 Dynamic tests at +25 Dynamic tests at +125 Dynamic tests at -55 Functional tests at +25 Functional tests at +125 Functional tests at -55 Switching tests at +25 Switching tests at +125 Switching tests at -55
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