LD39150 Datasheet, PDF (1/19 Pages) STMicroelectronics – Ultra low drop BICMOS voltage regulator

LD39150
Ultra low drop BICMOS voltage regulator
Feature summary
■ 1.5A Guaranteed output current
■ Ultra low dropout voltage (200mV typ. @ 1.5A
load, 40mV typ. @300mA load)
■ Very low quiescent current (1mA typ. @ 1.5A
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, DPAK and DFN8 (4x4mm)
Typical application
■ Microprocessor power supply
■ DSPs power supply
■ Post regulators for switching suppliers
■ High efficiency linear regulator
PPAK
DPAK
DFN8 (4x4 mm)
Description
The LD39150 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
DPAK (T&R)
LD39150DT12-R
LD39150DT18-R
LD39150DT25-R
LD39150DT33-R
1. Available on request
January 2007
Part numbers
PPAK (T&R)
LD39150PT18-R
LD39150PT25-R
LD39150PT33-R
LD39150PT-R
DFN ⁽¹⁾
LD39150PU12R
LD39150PU18R
LD39150PU25R
LD39150PU33R
LD39150PU-R
Rev. 1
Output Voltage
1.22V
1.8V
2.5V
3.3V
ADJ From 1.22 to 5.0V
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