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LP2980AIM5X-4.5 PDF预览

LP2980AIM5X-4.5

更新时间： 2024-11-21 22:57:31
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器调节器光电二极管输出元件
页数 文件大小 规格书
18页 426K
描述
Micropower 50 mA Ultra Low-Dropout Regulator

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LP2980AIM5X-4.5 数据手册

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April 2000  
LP2980  
Micropower 50 mA Ultra Low-Dropout Regulator  
General Description  
The LP2980 is a 50 mA, fixed-output voltage regulator de-  
signed specifically to meet the requirements of  
battery-powered applications.  
Features  
n Ultra low dropout voltage  
n Output voltage accuracy 0.5% (A Grade)  
n Guaranteed 50 mA output current  
™
Using an optimized VIP (Vertically Integrated PNP) pro-  
n Smallest possible size (SOT-23, micro SMD package)  
n Requires only 1 µF external capacitance  
cess, the LP2980 delivers unequaled performance in all  
specifications critical to battery-powered designs:  
<
n
1 µA quiescent current when shutdown  
@
Dropout Voltage. Typically 120 mV 50 mA load, and 7 mV  
n Low ground pin current at all load currents  
n High peak current capability (150 mA typical)  
n Wide supply voltage range (16V max)  
n Fast dynamic response to line and load  
n Low ZOUT over wide frequency range  
n Overtemperature/overcurrent protection  
n −40˚C to +125˚C junction temperature range  
@
1 mA load.  
@
Ground Pin Current. Typically 375 µA 50 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-23 and micro SMD packages  
use an absolute minimum board space.  
Minimum Part Count. Requires only 1 µF of external ca-  
pacitance on the regulator output.  
Applications  
n Cellular Phone  
Precision Output. 0.5% tolerance output voltages available  
(A grade).  
n Palmtop/Laptop Computer  
n Personal Digital Assistant (PDA)  
n Camcorder, Personal Stereo, Camera  
5.0V, 3.3V, and 3.0V versions available as standard prod-  
ucts.  
Block Diagram  
DS012078-1  
Connection Diagram and Ordering Information  
5-Lead Small Outline Package (M5)  
micro SMD, 5 Bump Package (BPA05)  
DS012078-60  
DS012078-3  
Bottom View  
See NS Package Number BPA05  
Top View  
See NS Package Number MF05A  
For ordering information see Table 1  
™
VIP is a trademark of National Semiconductor Corporation.  
© 2000 National Semiconductor Corporation  
DS012078  
www.national.com  
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