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LP2982AIM5-2.5 Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LP2982AIM5-2.5
Description  Micropower 50 mA Ultra Low-Dropout Regulator
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LP2982AIM5-2.5 Datasheet(HTML) 1 Page - National Semiconductor (TI)

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LP2982
Micropower 50 mA Ultra Low-Dropout Regulator
General Description
The LP2982 is a 50 mA, fixed-output voltage regulator de-
signed to provide ultra low dropout and lower noise in battery
powered applications.
Using an optimized VIP(Vertically Integrated PNP) pro-
cess, the LP2982 delivers unequaled performance in all
specifications critical to battery-powered designs:
Dropout Voltage: Typically 120 mV @ 50 mA load, and 7 mV
@ 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 absolute minimum board space.
Precision Output: 1.0% tolerance output voltages available
(A grade).
Low Noise: By adding an external bypass capacitor, output
noise can be reduced to 30 µV (typical).
Ten output voltage versions, from 2.5V to 5.0V, are available
as standard products.
Features
n
Ultra low dropout voltage
n
Guaranteed 50 mA output current
n
Typical dropout voltage 180 mV @ 80 mA
n
Smallest possible size (SOT-23, micro SMD package)
n
Requires minimum external components
n <
1 µA quiescent current when shutdown
n
Low ground pin current at all loads
n
Output voltage accuracy 1.0% (A Grade)
n
High peak current capability (150 mA typical)
n
Wide supply voltage range (16V max)
n
Low Z
OUT 0.3Ω typical (10 Hz to 1 MHz)
n
Overtemperature/overcurrent protection
n
−40˚C to +125˚C junction temperature range
n
Custom voltages available
Applications
n
Cellular Phone
n
Palmtop/Laptop Computer
n
Personal Digital Assistant (PDA)
n
Camcorder, Personal Stereo, Camera
Block Diagram
VIPis a trademark of National Semiconductor Corporation.
DS012679-1
March 2000
© 2000 National Semiconductor Corporation
DS012679
www.national.com


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