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LP2951AC PDF预览

LP2951AC

更新时间: 2024-11-04 22:46:59
品牌 Logo 应用领域
ADMOS 稳压器
页数 文件大小 规格书
14页 145K
描述
100mA LOW DROPOUT VOLTAGE REGULATOR

LP2951AC 数据手册

 浏览型号LP2951AC的Datasheet PDF文件第2页浏览型号LP2951AC的Datasheet PDF文件第3页浏览型号LP2951AC的Datasheet PDF文件第4页浏览型号LP2951AC的Datasheet PDF文件第5页浏览型号LP2951AC的Datasheet PDF文件第6页浏览型号LP2951AC的Datasheet PDF文件第7页 
Advanced  
Monolithic  
Systems  
LP2950/LP2951  
100mA LOW DROPOUT VOLTAGE REGULATOR  
FEATURES  
APPLICATIONS  
· 5V, 3.3V, and 3V Versions at 100mA Output Current  
· High Accuracy Output Voltage  
· Extremely Low Quiescent Current  
· Battery Powered Systems  
· Portable Consumer Equipment  
· Cordless Telephones  
· Low Dropout Voltage  
· Extremely Tight Load and Line Regulation  
· Very Low Temperature Coefficient  
· Portable (Notebook) Computers  
· Portable Instrumentation  
· Radio Control Systems  
· Automotive Electronics  
· Avionics  
· Current and Thermal Limiting  
· Needs Minimum Capacitance (1mF) for Stability  
· Unregulated DC Positive Transients 60V  
ADDITIONAL FEATURES (LP2951 ONLY)  
· 1.24V to 29V Programmable Output  
· Error Flag Warning of Voltage Output Dropout  
· Logic Controlled Electronic Shutdown  
· Low-Power Voltage Reference  
GENERAL DESCRIPTION  
The LP2950 and LP2951 are micropower voltage regulators ideally suited for use in battery-powered systems. These devices  
feature very low quiescent current (typ.75µA), and very low dropout voltage (typ.45mV at light loads and 380mV at 100mA)  
thus prolonging battery life. The quiescent current increases only slightly in dropout. The LP2950/LP2951 has positive  
transient protection up to 60V and can survive unregulated input transient up to 20V below ground.  
The LP2950 and LP2951 were designed to include a tight initial tolerance (typ. 0.5%), excellent load and line regulation (typ.  
0.05%), and a very low output voltage temperature coefficient, making these devices useful as a low-power voltage reference.  
The LP2950 is offered in the 3-pin TO-92 package. LP2951 is available in 8-pin plastic SOIC and DIP packages and offers  
three major additional system features. An error flag output warns of a low output voltage, often due to failing batteries on  
input. The LP2951 also features the logic-compatible shutdown input which enables the regulator to be switched on and off.  
The LP2951 device may be pin-strapped for a 5V, 3.3V, or 3V output, or programmed from 1.24V to 29V with an external  
pair of resistors.  
ORDERING INFORMATION  
PACKAGE TYPE  
PIN CONNECTION  
8L SOIC/ 8L PDIP  
OPERATING  
TEMP. RANGE  
IND.  
OUTPUT  
SENSE  
1
2
3
4
8
7
6
5
INPUT  
TO-92  
8 LEAD PDIP 8 LEAD SOIC  
FEEDBACK  
VTAP  
LP2950ACN-X LP2951ACP-X LP2951ACS-X  
SHUTDOWN  
GROUND  
LP2950CN-X  
LP2951CP-X  
LP2951CS-X  
IND  
ERROR  
X = 3.3V, or 3V  
Top View  
TO-92  
OUTPUT  
GND  
INPUT  
Bottom View  
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140  

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