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LP2981IM5X-3.3 参数 Datasheet PDF下载

LP2981IM5X-3.3图片预览
型号: LP2981IM5X-3.3
PDF下载: 下载PDF文件 查看货源
内容描述: 微百毫安超低压差稳压器 [Micropower 100 mA Ultra Low-Dropout Regulator]
分类和应用: 稳压器
文件页数/大小: 16 页 / 409 K
品牌: NSC [ NATIONAL SEMICONDUCTOR ]
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LP2981 Micropower 100 mA Ultra Low-Dropout Regulator
March 2000
LP2981
Micropower 100 mA Ultra Low-Dropout Regulator
General Description
The LP2981 is a 100 mA, fixed-output voltage regulator de-
signed specifically to meet the requirements of
battery-powered applications.
Using an optimized VIP
(Vertically Integrated PNP) pro-
cess, the LP2981 delivers unequaled performance in all
specifications critical to battery-powered designs:
Dropout Voltage.
Typically 200 mV
@
100 mA load, and
7 mV
@
1 mA load.
Ground Pin Current.
Typically 600 µA
@
100 mA load, and
80 µA
@
1 mA load.
Sleep Mode.
Less than 1 µA quiescent current when ON/
OFF pin is pulled low.
Smallest Possible Size.
SOT-23and micro SMD packages
use an absolute minimum board space.
Precision Output.
0.75% tolerance output voltages avail-
able (A grade).
Eleven voltage options, from 2.5V to 5.0V, are available as
standard products.
Features
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Ultra low dropout voltage
Output voltage accuracy 0.75% (A Grade)
Guaranteed 100 mA output current
Smallest possible size (SOT-23, micro SMD package)
<
1 µA quiescent current when shutdown
Low ground pin current at all load currents
High peak current capability (300 mA typical)
Wide supply voltage range (16V max)
Fast dynamic response to line and load
Low Z
OUT
over wide frequency range
Overtemperature/overcurrent protection
−40˚C to +125˚C junction temperature range
Applications
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Cellular Phone
Palmtop/Laptop Computer
Personal Digital Assistant (PDA)
Camcorder, Personal Stereo, Camera
Block Diagram
DS012506-1
VIP
is a trademark of National Semiconductor Corporation.
© 2000 National Semiconductor Corporation
DS012506
www.national.com