LP2980-ADJ Regulator Datasheet

LP2980-ADJ Datasheet, PDF, Equivalent


Part Number

LP2980-ADJ

Description

Micropower SOT/ 50 mA Ultra Low-Dropout Adjustable Voltage Regulator

Manufacture

National Semiconductor

Total Page 9 Pages
Datasheet
Download LP2980-ADJ Datasheet


LP2980-ADJ
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 Ultra low dropout voltage
n Output adjusts from 1.23V to 15V
n Guaranteed 50 mA output current
n Uses tiny SOT-23 package
n Requires few external components
n <1 µA quiescent current when shutdown
n Low ground pin current at all loads
n High peak current capability (150 mA typical)
n Wide supply voltage range (2.5V–16V)
n Overtemperature/overcurrent protection
n −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
Top View
See NS Package Number MA05B
For ordering Information, refer to Table 1 in this
DS100001-1
document
VIPis a trademark of National Semiconductor Corporation.
© 2000 National Semiconductor Corporation DS100001
www.national.com

LP2980-ADJ
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 OVER
FULL LOAD CURRENT RANGE (SEE APPLICATION HINTS).
Ordering Information
DS100001-3
TABLE 1. Package Marking and Ordering Information
Grade
Order Information
Package Marking
STD
LP2980IM5X-ADJ
L06B
STD
LP2980IM5-ADJ
L06B
For fixed output voltage versions, see LP2980 and LP2980LV datasheets.
Supplied as
3k Units on Tape and Reel
250 Units on Tape and Reel
www.national.com
2


Features LP2980-ADJ Micropower SOT, 50 mA Ultra L ow-Dropout Adjustable Voltage Regulator April 2000 LP2980-ADJ Micropower SOT , 50 mA Ultra Low-Dropout Adjustable Vo ltage Regulator General Description The LP2980-ADJ is a 50 mA adjustable volta ge regulator designed to provide ultra low dropout in battery powered applicat ions. Using an optimized VIP™ (vertic ally Integrated PNP) process, the LP298 0-ADJ delivers unequalled performance i n all specifications critical to batter y-powered designs: Adjustable Output: o utput voltage can be set from 1.23V to 15V. Precision Reference: 0.75% toleran ce. Dropout Voltage: typically 120 mV @ 50 mA load, and 7 mV @ 1 mA load. Grou nd 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. Smalles t Possible Size: SOT-23 package uses mi nimum board space. Features n n n n n n n n n n n Ultra low dropout voltage O utput adjusts from 1.23V to 15V Guaranteed 50 mA output current Uses.
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