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LP2951A PDF预览

LP2951A

更新时间: 2024-11-25 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

LP2951A 数据手册

 浏览型号LP2951A的Datasheet PDF文件第2页浏览型号LP2951A的Datasheet PDF文件第3页浏览型号LP2951A的Datasheet PDF文件第4页浏览型号LP2951A的Datasheet PDF文件第5页 
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:  
VOUTVOLTS  
PACKAGE  
ADJ  
SO-8  
(1) Add suffix ‘TR’ for tape and reel.  
ABSOLUTE MAXIMUM RATINGS  
Parameter  
Symbol Maximum Units  
Supply Voltage  
VIN  
-0.3 to 30  
-0.3 to 30  
V
V
Shutdown Input  
Voltage  
PIN CONFIGURATION  
Error Comp. Output  
Voltage  
-0.3 to 30  
V
Power Dissipation  
Internally  
Limited  
PD  
TJ  
W
Operating Junction  
Temperature Range  
-40 to 125  
-65 to 150  
260  
°C  
°C  
°C  
Storage  
Temperature Range  
TSTG  
TLEAD  
Lead Temperature  
(Soldering) 5 Sec  
1
© 1998 SEMTECH CORP.  
652 MITCHELL ROAD NEWBURY PARK CA 91320  

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