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LP2951ACD-3.0G PDF预览

LP2951ACD-3.0G

更新时间： 2024-11-27 00:47:19
品牌 Logo 应用领域
安森美 - ONSEMI /
页数 文件大小 规格书
22页 188K
描述
100 mA, Low Power Low Dropout Voltage Regulator

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LP2951ACD-3.0G 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.  
www.onsemi.com  
TO−92  
CASE 29  
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.  
Pin: 1. Output  
2. Ground  
3. Input  
1
2
3
BENT LEAD  
TAPE & REEL  
AMMO PACK  
1
2
3
STRAIGHT LEAD  
BULK PACK  
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 ‘A’ suffix devices feature an initial output voltage tolerance  
0.5%.  
4
Pin: 1. Input  
2
1
2. Ground  
3. Output  
3
1
2
3
DPAK  
CASE 369C  
(Top View)  
Heatsink surface (shown as terminal 4 in  
case outline drawing) is connected to Pin 2.  
Features  
• Low Quiescent Bias Current of 75 mA  
• Low Input−to−Output Voltage Differential of 50 mV at 100 mA and  
380 mV at 100 mA  
SOIC−8  
CASE 751  
8
1
1
• 5.0 V, 3.3 V or 3.0 V 0.5% Allows Use as a Regulator or Reference  
PDIP−8  
CASE 626  
• Extremely Tight Line and Load Regulation  
• Requires Only a 1.0 mF Output Capacitor for Stability  
• Internal Current and Thermal Limiting  
8
Micro8E  
• NCV Prefix for Automotive and Other Applications Requiring  
Unique Site and Control Change Requirements; AEC−Q100  
Qualified and PPAP Capable  
8
CASE 846A  
1
• These Devices are Pb−Free and RoHS Compliant  
PIN CONNECTIONS  
1
2
3
4
8
7
6
5
Output  
Sense  
Input  
LP2951 Additional Features  
Feedback  
• Error Output Signals an Out of Regulation Condition  
• Output Programmable from 1.25 V to 29 V  
• Logic Level Shutdown Input  
Shutdown  
GND  
V
O
Tap  
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 15 of this data sheet.  
See general marking information in the device marking  
section on page 17 of this data sheet.  
© Semiconductor Components Industries, LLC, 2015  
1
Publication Order Number:  
April, 2015 − Rev. 28  
LP2950/D  
1234567...22

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LP2951ACD-3.0G 替代型号

型号 品牌 替代类型 描述 数据表
LP2951ACD-3.0R2G ONSEMI

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