Datasheet > LD39150XX25

LD39150XX25

更新时间： 2024-02-29 07:34:20

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
19页	511K
描述
Ultra low drop BiCMOS voltage regulator

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LD39150XX25 数据手册

LD39150xx

Ultra low drop BiCMOS voltage regulator

Features

■ 1.5 A guaranteed output current

■ Ultra low dropout voltage (200 mV typ. @ 1.5 A

load, 40 mV typ. @ 300 mA load)

■ Very low quiescent current (1 mA typ. @ 1.5 A

DPAK

PPAK

load, 1 µA 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: 1.22 V, 1.8 V,

2.5 V, 3.3 V, ADJ. (see Table 1)

DFN6 (3x3 mm)

■ Temperature range: -40 to 125 °C

■ Fast dynamic response to line and load

Description

changes

The LD39150xx is a fast ultra low drop linear

regulator which operates from 2.5 V to 6 V input

supply.

■ Stable with ceramic capacitor (see Section 7.1,

Section 7.2 and Section 7.3)

■ Available in PPAK, DPAK and DFN6 (3x3 mm)

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

Typical application

■ Microprocessor power supply

■ DSPs power supply

■ Post regulators for switching suppliers

■ High efficiency linear regulator

independently of output load current.

Table 1.

Device summary

Order codes

Part numbers

Output voltages

DPAK (T&R)

PPAK (T&R)

DFN ⁽¹⁾

LD39150XX12

LD39150XX18

LD39150DT12-R

LD39150DT18-R

LD39150DT25-R

LD39150DT33-R

LD39150PU12R

LD39150PU18R

LD39150PU25R

LD39150PU33R

LD39150PU-R

1.22 V

LD39150PT18-R

LD39150PT25-R

LD39150PT33-R

LD39150PT-R

1.8 V

2.5 V

LD39150XX25

LD39150XX33

3.3 V

LD39150XX

ADJ from 1.22 to 5.0 V

1. Available on request.

January 2009

Rev 2

1/19

www.st.com

12 3 4 5 6 7...19

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