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LP2951CS-L-3.3 PDF预览

LP2951CS-L-3.3

更新时间: 2024-11-08 14:34:15
品牌 Logo 应用领域
西伯斯 - SIPEX 光电二极管输出元件调节器
页数 文件大小 规格书
13页 380K
描述
Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 29V Max, 0.45V Dropout, BIPolar, PDSO8, SOIC-8

LP2951CS-L-3.3 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:SOIC-8Reach Compliance Code:compliant
风险等级:5.62最大回动电压 1:0.45 V
JESD-30 代码:R-PDSO-G8JESD-609代码:e3
长度:4.9 mm湿度敏感等级:1
功能数量:1端子数量:8
工作温度TJ-Max:125 °C工作温度TJ-Min:-40 °C
最大输出电流 1:0.1 A最大输出电压 1:29 V
最小输出电压 1:1.24 V标称输出电压 1:3.3 V
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260认证状态:Not Qualified
调节器类型:FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR座面最大高度:1.75 mm
表面贴装:YES技术:BIPOLAR
端子面层:TIN端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:3.9 mm
Base Number Matches:1

LP2951CS-L-3.3 数据手册

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LP2950/LP2951  
100mA Low Dropout Voltage Regulators  
FEATURES  
5.0V and 3.3V Versions at 100mA Output  
Very Low Quiescent Current  
APPLICATIONS  
Battery Powered Systems  
Cordless Telephones  
Low Dropout Voltage: 380mV at 100mA  
Extremely Tight Load and Line Regulation  
Very Low Temperature Coefficient  
Current & Thermal Limiting  
Radio Control Systems  
Portable/Palm Top/Notebook Computers  
Portable Consumer Equipment  
Portable Instrumentation  
Avionics  
Need Only 1 µF for Stability  
Offered in TO-92 (LP2950) & SOIC (LP2951)  
Direct Replacement For LP2950/LP2951  
SMPS Post-Regulator  
Voltage Reference  
Automotive Electronics  
LP2951 versions only  
Error Flag Warns of Output Dropout  
Logic-Controlled Electronic Shutdown  
Output Programmable From 1.24 to 29V  
PRODUCT DESCRIPTION  
The LP2950 and LP2951 are low power voltage regulators. These devices are an excellent choice for use in battery-powered  
applications such as cordless telephones, radio control systems, and portable computers. The LP2950 and LP2951 feature low  
quiescent current and low dropout voltage (typ. 50mV at light load and 380 mV at 100mA). This includes a tight initial tolerance  
(0.5% typ.), extremely good load and line regulation (0.05% typ.), and very low output temperature coefficient (20 ppm/¡C typ.),  
making the LP2950/LP2951 useful as a low-power voltage reference.  
The error flag output feature is used as a power-on reset for warning of a low output voltage, due to a falling input voltage. The logic-  
compatible shutdown feature enables the regulator to be switched ON and OFF. The LP2950 is offered in a 3-pin TO-92 package  
compatible with other 5V, 3.3V regulators. The LP2951 is available in an 8-lead SOIC package.  
Block diagram of LP2951  
UNREGULATED DC  
5V @ 100mA  
MAX  
1
7
8
+
INPUT  
FEEDBACK  
OUTPUT  
2
SENSE  
180k  
+
_
6
ERROR  
3
FROM  
CMOS OR  
TTL  
AMPLIFIER  
330k  
5V TAP  
SHUTDOWN  
+
60 mV  
60k  
1µF  
.
5
______  
ERROR  
+
+
_
.
ERROR DETECTION  
COMPARATOR  
TO CMOS OR  
TTL  
1.23V  
+
4
REFERENCE  
GROUND  
Rev. 8/6/01  
LP2950/51 100mA Low Dropout Voltage Regulators  
©Copyright 2001 Sipex Corporation  
1

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