LP2980-ADJ Micropower SOT, 50 mA Ultra Low-Dropout Adjustable Voltage Regulator
April 2000
LP2980-ADJ
Micropower SOT, 50 mA Ultra Low-Dropout Adjustable
Voltage Regulator
General Description
The LP2980-ADJ is a 50 mA adjustable voltage regulator de-
signed to provide ultra low dropout in battery powered appli-
cations.
Using an optimized VIP
™
(vertically Integrated PNP) pro-
cess, the LP2980-ADJ delivers unequalled performance in
all specifications critical to battery-powered designs:
Adjustable Output:
output voltage can be set from 1.23V to
15V.
Precision Reference:
0.75% tolerance.
Dropout Voltage:
typically 120 mV
@
50 mA load, and 7 mV
@
1 mA load.
Ground Pin Current:
typically 320 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 package uses minimum
board space.
Features
n
n
n
n
n
n
n
n
n
n
n
Ultra low dropout voltage
Output adjusts from 1.23V to 15V
Guaranteed 50 mA output current
Uses tiny SOT-23 package
Requires few external components
<
1 µA quiescent current when shutdown
Low ground pin current at all loads
High peak current capability (150 mA typical)
Wide supply voltage range (2.5V–16V)
Overtemperature/overcurrent protection
−40˚C to +125˚C Junction temperature range
Applications
n
Cellular Phone
n
Palmtop/Laptop Computer
n
Camcorder, Personal Stereo, Camera
Block Diagram
Connection Diagram
5-Lead Small Outline Package (M5)
DS100001-2
DS100001-1
Top View
See NS Package Number MA05B
For ordering Information, refer to
Table 1
in this
document
VIP
™
is a trademark of National Semiconductor Corporation.
© 2000 National Semiconductor Corporation
DS100001
www.national.com
NSC [ NATIONAL SEMICONDUCTOR ]
