LP2951A

更新时间： 2024-11-04 22:46:59

品牌	Logo	应用领域
商升特 - SEMTECH		/
页数	文件大小	规格书
5页	115K
描述
150mA ADJUSTABLE VOLTAGE REGULATOR

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LP2951A 数据手册

150mA ADJUSTABLE

VOLTAGE REGULATOR

LP2951A

March 17, 1998

TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com

DESCRIPTION

FEATURES

The LP2951A is an improved version of the LP2951

and features tighter tolerance on the output voltage

and reference voltage specifications. Both the LP2951

and LP2951A feature 150mA output current capability.

The LP2951 series of low power voltage regulators

have low quiescent current and low dropout voltage.

The quiescent current increases minimally during

dropout conditions thereby extending battery life.

•= ^{Guaranteed 150mA current}

•= Adjustable output voltage - 1.24V to 29V

•= Accurate 5V output @150mA

•= Low dropout voltage - 450mV @ 150mA

•= Regulator or reference functions

•= Direct replacement for LP2951AC, MIC2951-02,

AS2951AC

Available in the eight lead SOIC package, the LP2951

series includes features such as shutdown and low

output voltage detect (typically due to low battery con-

ditions) . This function may also be used as a power on

reset function when triggered by CMOS or TTL inputs.

The circuit can be used as a fixed voltage 5 volt regula-

tor or adjusted between 1.24 volts and 29 volts using

external resistor pairs.

APPLICATIONS

•= Microcontroller supplies

•= Linear regulators

•= Adjustable supplies

•= Switching power supplies - post-regulation

•= Portable modems

•= Battery powered systems

•= Cellular telephones

•= Voltage references

BLOCK DIAGRAM

ORDERING INFORMATION

DEVICE⁽¹⁾

LP2951ACM

Note:

V_OUTVOLTS

PACKAGE

ADJ

SO-8

(1) Add suffix ‘TR’ for tape and reel.

ABSOLUTE MAXIMUM RATINGS

Parameter

Symbol Maximum Units

Supply Voltage

V_IN

-0.3 to 30

Shutdown Input

Voltage

PIN CONFIGURATION

Error Comp. Output

Voltage

-0.3 to 30

Power Dissipation

Internally

Limited

P_D

T_J

Operating Junction

Temperature Range

-40 to 125

-65 to 150

260

°C

Storage

Temperature Range

T_STG

T_LEAD

Lead Temperature

(Soldering) 5 Sec

652 MITCHELL ROAD NEWBURY PARK CA 91320

12 3 4 5

中文翻译

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