LD2979Z38 Ver la hoja de datos (PDF) - STMicroelectronics

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LD2979Z38

VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT

STMicroelectronics 

LD2979

SERIES

VERY LOW DROP

VOLTAGE REGULATORS WITH INHIBIT

s VERY LOW DROPOUT VOLTAGE

(0.2V TYP. AT 50mA LOAD)

s VERY LOW QUIESCENT CURRENT

(TYP. 500µA AT 50mA LOAD)

s OUTPUT CURRENT UP TO 50mA

s LOGIC-CONTROLLED ELECTRONIC

SHUTDOWN

s OUTPUT VOLTAGES OF 2.85; 3.0; 3.2; 3.3;

3.8; 5.0V

s INTERNAL CURRENT AND THERMAL LIMIT

s SUPPLY VOLTAGE REJECTION: 63dB (TYP)

s ONLY 1µF FOR STABILITY

s SELECTION AT 25°C

s TEMPERATURE RANGE: -25°C TO 125°C

s PACKAGE AVAILABLE: SOT23-5L AND

TO-92

DESCRIPTION

The LD2979 series are very Low Drop regulators

available in SOT23-5L and TO-92.

The very low drop-voltage and the very low

quiescent current make them particularly suitable

for low noise, low power applications and in

battery powered systems.

Shutdown Logic Control function is available on

five pin version (TTL compatible). This means that

SOT23-5L

TO-92

when the device is used as local regulator, it is

possible to put a part of the board in standby,

decreasing the total power consumption.

SCHEMATIC DIAGRAM

February 2003

1/10

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