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LD2979

Very low drop voltage regulators with inhibit

STMicroelectronics 

LD2979

Very low drop voltage regulators with inhibit

SOT23-5L

Features

• Very low dropout voltage (0.2 V typ. at 50 mA

load)

• Very low quiescent current (typ. 500 µA at 50

mA load)

• Output current up to 50 mA

• Logic-controlled electronic shutdown

• Output voltages of 3.0 and 3.3 V

• Internal current and thermal limit

• Supply voltage rejection: 63 dB (typ)

• Only 1 µF for stability

• Temperature range: -25 °C to 125 °C

• Package available: SOT23-5L

Datasheet - production data

Description

The LD2979 is a very low drop regulator available

in SOT23-5L.

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

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.

Order codes

LD2979M30TR

LD2979M33TR

Table 1. Device summary

Output voltages

3.0 V

3.3 V

November 2013

This is information on a product in full production.

DocID5721 Rev 15

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