LP2981 Regulator Datasheet

LP2981 Datasheet, PDF, Equivalent


Part Number

LP2981

Description

Micropower 100 mA Ultra Low-Dropout Regulator

Manufacture

National Semiconductor

Total Page 16 Pages
Datasheet
Download LP2981 Datasheet


LP2981
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
n Ultra low dropout voltage
n Output voltage accuracy 0.75% (A Grade)
n Guaranteed 100 mA output current
n Smallest possible size (SOT-23, micro SMD package)
n < 1 µA quiescent current when shutdown
n Low ground pin current at all load currents
n High peak current capability (300 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
Applications
n Cellular Phone
n Palmtop/Laptop Computer
n Personal Digital Assistant (PDA)
n Camcorder, Personal Stereo, Camera
Block Diagram
DS012506-1
VIPis a trademark of National Semiconductor Corporation.
© 2000 National Semiconductor Corporation DS012506
www.national.com

LP2981
Connection Diagrams
5-Lead Small Outline Package (M5)
micro SMD, 5 Bump Package (BPA05)
DS012506-2
Top View
See NS Package Number MF05A
For ordering information see Table 1
Ordering Information
DS012506-50
Bottom View
See NS Package Number BPA05
TABLE 1. Package Marking and Order Information
Output Voltage
Grade
(V)
5-Lead Small Outline Package (M5)
2.5 A
2.5 A
2.5 STD
2.5 STD
2.7 A
2.7 A
2.7 STD
2.7 STD
2.8 A
2.8 A
2.8 STD
2.8 STD
2.9 A
2.9 A
2.9 STD
2.9 STD
3.0 A
3.0 A
3.0 STD
3.0 STD
3.1 A
3.1 A
3.1 STD
3.1 STD
3.2 A
3.2 A
3.2 STD
3.2 STD
3.3 A
3.3 A
3.3 STD
3.3 STD
Order Information
LP2981AIM5X-2.5
LP2981AIM5-2.5
LP2981IM5X-2.5
LP2981IM5-2.5
LP2981AIM5X-2.7
LP2981AIM5-2.7
LP2981IM5X-2.7
LP2981IM5-2.7
LP2981AIM5X-2.8
LP2981AIM5-2.8
LP2981IM5X-2.8
LP2981IM5-2.8
LP2981AIM5X-2.9
LP2981AIM5-2.9
LP2981IM5X-2.9
LP2981IM5-2.9
LP2981AIM5X-3.0
LP2981AIM5-3.0
LP2981IM5X-3.0
LP2981IM5-3.0
LP2981AIM5X-3.1
LP2981AIM5-3.1
LP2981IM5X-3.1
LP2981IM5-3.1
LP2981AIM5X-3.2
LP2981AIM5-3.2
LP2981IM5X-3.2
LP2981IM5-3.2
LP2981AIM5X-3.3
LP2981AIM5-3.3
LP2981IM5X-3.3
LP2981IM5-3.3
Package
Marking
L0CA
L0CA
L0CB
L0CB
L0DA
L0DA
L0DB
L0DB
L77A
L77A
L77B
L77B
L0VA
L0VA
L0VB
L0VB
L05A
L05A
L05B
L05B
L38A
L38A
L38B
L38B
L35A
L35A
L35B
L35B
L04A
L04A
L04B
L04B
Supplied as:
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
www.national.com
2


Features LP2981 Micropower 100 mA Ultra Low-Dropo ut Regulator March 2000 LP2981 Microp ower 100 mA Ultra Low-Dropout Regulator General Description The LP2981 is a 10 0 mA, fixed-output voltage regulator de signed specifically to meet the require ments of battery-powered applications. Using an optimized VIP™ (Vertically I ntegrated PNP) process, the LP2981 deli vers unequaled performance in all speci fications critical to battery-powered d esigns: 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 c urrent when ON/ OFF pin is pulled low. Smallest Possible Size. SOT-23and micro SMD packages use an absolute minimum b oard space. Precision Output. 0.75% tol erance output voltages available (A gra de). Eleven voltage options, from 2.5V to 5.0V, are available as standard prod ucts. Features n n n n n n n n n n n n Ultra low dropout voltage Output voltage accuracy 0.75% (A Grade) G.
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