Micropower 50 mA Ultra Low-Dropout Regulator In
SOT-23 and micro SMD Packages
The LP2980 is a 50 mA, fixed-output voltage regulator de-
signed specifically to meet the requirements of battery-
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
5.0V, 3.3V, and 3.0V versions available as standard prod-
n Ultra low dropout voltage
n Output voltage accuracy 0.5% (A Grade)
n Guaranteed 50 mA output current
n Smallest possible size (SOT-23, micro SMD package)
n Requires only 1 µF external capacitance
n < 1 µA quiescent current when shutdown
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
n Cellular Phone
n Palmtop/Laptop Computer
n Personal Digital Assistant (PDA)
n Camcorder, Personal Stereo, Camera
VIP™ is a trademark of National Semiconductor Corporation.
© 2006 National Semiconductor Corporation DS012078