LP2980 Micropower 50 mA Ultra Low-Dropout Regulator
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.
Using an optimized VIP
™
(Vertically Integrated PNP) pro-
cess, the LP2980 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 an absolute minimum board space.
Minimum Part Count.
Requires only 1 µF of external ca-
pacitance on the regulator output.
Precision Output.
0.5% tolerance output voltages available
(A grade).
5.0V, 3.3V, and 3.0V versions available as standard prod-
ucts.
Features
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Ultra low dropout voltage
Output voltage accuracy 0.5% (A Grade)
Guaranteed 50 mA output current
Smallest possible size (SOT-23, micro SMD package)
Requires only 1 µF external capacitance
<
1 µA quiescent current when shutdown
Low ground pin current at all load currents
High peak current capability (150 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
DS012078-1
Connection Diagram and Ordering Information
5-Lead Small Outline Package (M5)
micro SMD, 5 Bump Package (BPA05)
DS012078-60
DS012078-3
Top View
See NS Package Number MF05A
For ordering information see
Table 1
Bottom View
See NS Package Number BPA05
VIP
™
is a trademark of National Semiconductor Corporation.
© 2000 National Semiconductor Corporation
DS012078
www.national.com