LM2931BZ33 datasheet(1/19 Pages) STMICROELECTRONICS

Il numero della parte	LM2931BZ33

Spiegazioni elettronici	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT FUNCTION

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March 2004

s

VERY LOW DROPOUT VOLTAGE (0.15V

TYP. AT 10mA LOAD)

s

LOW QUIESCENT CURRENT (TYP. 2.5mA,

AT 100mA LOAD)

s

OUTPUT CURRENT UP TO 100mA

s

ADJUSTABLE (FROM VOUT =2.5V ONLY

SO-8) AND FIXED (3.3V & 5V) OUTPUT

VOLTAGE VERSION

s

INTERNAL CURRENT AND THERMAL LIMIT

s

LOAD DUMP PROTECTION UP TO 60V

s

REVERSE TRANSIENT PROTECTION UP

TO -50V

s

TEMPERATURE RANGE: -40 TO 125°C

s

PACKAGE AVAILABLE: TO-92, DPAK,

TO-220, SO-8 (WITH INHIBIT CONTROL)

DESCRIPTION

The LM2931 series are very low drop regulators.

The very low drop voltage and the low quiescent

current make them particular suitable for low

noise, low power applications and in battery

powered systems. In the 8 pin configuration

(SO-8), fully compatible to the older L78L00

family, a shut down Logic Control function is

available.

This means that when the device is used as a

local regulator is possible to put a part of the board

in

stand-by

decreasing

the

total

power

consumption. Ideal for automotive application the

LM2931

is

protected

from

reverse

battery

installations or 2 battery jumps. During the

transient, such as a a load dump (60V) when the

input voltage can exceed the specified maximum

operating input voltage (26V), the regulator will

automatically shut down to protect both internal

circuit and the load.

LM2931

SERIES

VERY LOW DROP

VOLTAGE REGULATORS WITH INHIBIT FUNCTION

SCHEMATIC DIAGRAM

TO-220

SO-8

TO-92

DPAK

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