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LP2957A - 5V Low-Dropout Regulator

This page provides the datasheet information for the LP2957A, a member of the LP2957 5V Low-Dropout Regulator family.

Description

The LP2957 is a 5V micropower voltage regulator with electronic shutdown, error flag, very low quiescent current (150 µA typical at 1 mA load), and very low dropout voltage (470 mV typical at 250 mA load current).

Features

  • n 5V output within 1.4% over t.

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Full PDF Text Transcription

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LP2957/LP2957A 5V Low-Dropout Regulator for µP Applications June 1998 LP2957/LP2957A 5V Low-Dropout Regulator for µP Applications General Description The LP2957 is a 5V micropower voltage regulator with electronic shutdown, error flag, very low quiescent current (150 µA typical at 1 mA load), and very low dropout voltage (470 mV typical at 250 mA load current). Output can be wired for snap-on/snap-off operation to eliminate transition voltage states where µP operation may be unpredictable. Output crowbar (50 mA typical pull-down current) will bring down the output quickly when the regulator snaps off or when the shutdown function is activated. The part has tight line and load regulation (0.04% typical) and low output temperature coefficient (20 ppm/˚C typical).
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