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LM2940C - 1A Low Dropout Regulator

This page provides the datasheet information for the LM2940C, a member of the LM2 1A Low Dropout Regulator family.

Description

The LM2940/LM2940C positive voltage regulator

Features

  • the ability to source 1A of output 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 regu.

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Datasheet Details

Part number LM2940C
Manufacturer National Semiconductor
File Size 409.32 KB
Description 1A Low Dropout Regulator
Datasheet download datasheet LM2940C Datasheet
Additional preview pages of the LM2940C datasheet.

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Full PDF Text Transcription

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LM2940/LM2940C 1A Low Dropout Regulator March 2000 LM2940/LM2940C 1A Low Dropout Regulator General Description The LM2940/LM2940C positive voltage regulator features the ability to source 1A of output 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).
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