LD39300PT25-R View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

LD39300PT25-R

Ultra low drop BICMOS voltage regulator

STMicroelectronics 

LD39300

Ultra low drop BICMOS voltage regulator

Feature summary

■ 3A Guaranteed output current

■ Ultra low dropout voltage (200mV typ. @ 3A

load, 40mV typ. @600mA load)

■ Very low quiescent current (1.2mA typ. @ 3A

load, 1µA max @ 25°C in off mode)

■ Logic-controlled electronic shutdown

■ Current and thermal internal limit

■ ±1.5% Output voltage tolerance @ 25°C

■ Fixed and ADJ output voltages: 1.22V, 1.8V,

2.5V, 3.3V, ADJ. (*see order code)

■ Temperature range: -40 to 125°C

■ Fast dynamic response to line and load

changes

■ Stable with ceramic capacitor (see paragraph

7.1, 7.2, 7.3)

■ Available in PPAK and DPAK

Typical application

■ Microprocessor power supply

■ DSPs power supply

■ Post regulators for switchin suppliers

■ High efficiency linear regulator

PPAK

DPAK

Description

The LD39300 is a fast ultra low drop linear

regulator which operates from 2.5V to 6V input

supply.

A wide range of output options are available. The

low drop voltage, low noise, and ultra low

quiescent current make it suitable for low voltage

microprocessor and memory applications. The

device is developed on a BiCMOS process which

allows low quiescent current operation

independently of output load current.

Order codes

Part numbers

DPAK

LD39300DT12-R

LD39300DT18-R

LD39300DT25-R

LD39300DT33-R

PPAK

LD39300PT18-R

LD39300PT25-R

LD39300PT33-R

LD39300PT-R

January 2007

Rev. 1

Output voltage

1.22V

1.8V

2.5V

3.3V

ADJ From 1.22 to 5.0V

1/17

www.st.com

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