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LP2950CZ-3.3RA PDF预览

LP2950CZ-3.3RA

更新时间: 2024-11-09 05:00:03
品牌 Logo 应用领域
安森美 - ONSEMI 稳压器调节器输出元件
页数 文件大小 规格书
24页 194K
描述
100 mA, Low Power Low Dropout Voltage Regulator

LP2950CZ-3.3RA 数据手册

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LP2950, LP2951, NCV2951  
100 mA, Low Power Low  
Dropout Voltage Regulator  
The LP2950 and LP2951 are micropower voltage regulators that are  
specifically designed to maintain proper regulation with an extremely  
low input−to−output voltage differential. These devices feature a very  
low quiescent bias current of 75 mA and are capable of supplying  
output currents in excess of 100 mA. Internal current and thermal  
limiting protection is provided.  
The LP2951 has three additional features. The first is the Error  
Output that can be used to signal external circuitry of an out of  
regulation condition, or as a microprocessor power−on reset. The  
second feature allows the output voltage to be preset to 5.0 V, 3.3 V or  
3.0 V output (depending on the version) or programmed from 1.25 V  
to 29 V. It consists of a pinned out resistor divider along with direct  
access to the Error Amplifier feedback input. The third feature is a  
Shutdown input that allows a logic level signal to turn−off or turn−on  
the regulator output.  
http://onsemi.com  
TO−92  
Z SUFFIX  
CASE 29  
Pin: 1. Output  
2. Ground  
3. Input  
1
2
3
4
DPAK  
DT SUFFIX  
CASE 369C  
2
3
1
PIN CONNECTIONS  
Due to the low input−to−output voltage differential and bias current  
specifications, these devices are ideally suited for battery powered  
computer, consumer, and industrial equipment where an extension of  
useful battery life is desirable. The LP2950 is available in the three  
pin case 29 and DPAK packages, and the LP2951 is available in the  
eight pin dual−in−line, SOIC−8 and Micro8 surface mount packages.  
The ‘Asuffix devices feature an initial output voltage tolerance  
0.5%.  
Pin: 1. Input  
2. Ground  
3. Output  
1
2
3
(Top View)  
Heatsink surface (shown as terminal 4 in  
case outline drawing) is connected to Pin 2.  
Features  
Pb−Free Packages are Available  
SOIC−8  
D SUFFIX  
CASE 751  
8
Low Quiescent Bias Current of 75 mA  
1
1
Low Input−to−Output Voltage Differential of 50 mV at 100 mA and  
380 mV at 100 mA  
PDIP−8  
N SUFFIX  
CASE 626  
5.0 V, 3.3 V or 3.0 V 0.5% Allows Use as a Regulator or Reference  
Extremely Tight Line and Load Regulation  
8
Requires Only a 1.0 mF Output Capacitor for Stability  
Internal Current and Thermal Limiting  
Micro8E  
DM SUFFIX  
CASE 846A  
8
1
NCV Prefix for Automotive and Other Applications Requiring Site  
and Control Changes  
PIN CONNECTIONS  
LP2951 Additional Features  
1
2
3
4
8
7
6
5
Output  
Sense  
Input  
Error Output Signals an Out of Regulation Condition  
Output Programmable from 1.25 V to 29 V  
Logic Level Shutdown Input  
Feedback  
Shutdown  
GND  
V
Tap  
O
Error Output  
(See Following Page for Device Information.)  
(Top View)  
ORDERING & MARKING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on pages 14 and 16 of this data sheet.  
See general marking information in the device marking  
section on page 18 of this data sheet.  
©
Semiconductor Components Industries, LLC, 2006  
1
Publication Order Number:  
December, 2006 − Rev. 19  
LP2950/D  

LP2950CZ-3.3RA 替代型号

型号 品牌 替代类型 描述 数据表
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完全替代

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LP2950ACZ-3.3RAG ONSEMI

完全替代

100 mA, Low Power Low Dropout Voltage Regulator
LP2950ACZ-3.3G ONSEMI

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100 mA, Low Power Low Dropout Voltage Regulator

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