Voltage Regulator. LP2983 Datasheet

LP2983 Datasheet PDF

Part Number



Micropower 150 mA Voltage Regulator


National Semiconductor

Total Page 11 Pages
Download LP2983 Datasheet

October 2001
Micropower 150 mA Voltage Regulator in SOT-23
Package For Output Voltages 1.2V
Designed for Use with Very Low ESR Output Capacitors
General Description
The LP2983 is a 150 mA, fixed-output voltage regulator
designed to provide tight voltage regulation in applications
with output voltages 1.2V.
Using an optimized VIP(Vertically Integrated PNP) pro-
cess, the LP2983 delivers unequalled performance in all
critical specifications:
Ground Pin Current: Typically 825 µA @ 150 mA load, and
75 µA @ 1 mA load.
Enhanced Stability: The LP2983 is stable with output ca-
pacitor ESR down to zero, which allows the use of ceramic
capacitors on the output.
Smallest Possible Size: SOT-23 package uses absolute
minimum board space.
Precision Output: 1% tolerance output voltages available
(A grade).
n Guaranteed 150 mA output current
n Smallest possible size (SOT-23 package)
n Requires minimum external components
n Stable with low-ESR output capacitor
n Low ground pin current at all loads
n Output voltage accuracy 1% (A Grade)
n High peak current capability
n Wide supply voltage range (16V max)
n Low ZOUT: 0.3typical (10 Hz to 1 MHz)
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
Block Diagram
VIPis a trademark of National Semiconductor Corporation.
© 2001 National Semiconductor Corporation DS200291

Basic Application Circuit
*ON/OFF input must be actively terminated. Tie to VIN if this function is not to be used.
**Minimum capacitance is shown to ensure stability (may be increased without limit). Ceramic capacitor required for output (see Application Hints).
Connection Diagram
5-Lead Small Outline Package (M5)
Top View
See NS Package Number MF05A
For ordering information see Table 1

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