LP2992

www.ti.com

SNVS171G – NOVEMBER 2001 – REVISED MARCH 2013

LP2992 Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and

WSON Packages Designed for Use with Very Low ESR Output Capacitors

Check for Samples: LP2992

1

FEATURES

DESCRIPTION

The LP2992 is a 250 mA, fixed-output voltage

2

•

Ultra Low Dropout Voltage

regulator designed to provide ultra low-dropout and

•

Specified 250 mA Output Current

low noise in battery powered applications.

•

Smallest Possible Size (SOT-23, WSON

Using an optimized VIP (Vertically Integrated PNP)

Package)

process, the LP2992 delivers unequaled performance

•

Requires Minimum External Components

in

all

specifications

critical

to

battery-powered

designs:

•

Stable with Low-ESR Output Capacitor

•

<1 µA Quiescent Current when Shut Down

Dropout Voltage: Typically 450 mV @ 250 mA load,

and 5 mV @ 1 mA load.

•

Low Ground Pin Current at all Loads

•

Output Voltage Accuracy 1% (A Grade)

Ground Pin Current: Typically 1500 µA @ 250 mA

load, and 75 µA @ 1 mA load.

•

High Peak Current Capability

•

Wide Supply Voltage Range (16V Max)

Enhanced Stability: The LP2992 is stable with

output capacitor ESR as low as 5 m

Ω, which allows

•

the use of ceramic capacitors on the output.

•

Overtemperature/overcurrent Protection

Sleep Mode: Less than 1 µA quiescent current when

•

−40°C to +125°C Junction Temperature Range

ON/OFF pin is pulled low.

•

Custom Voltages Available

Smallest

Possible

Size:

SOT-23

and

WSON

packages use absolute minimum board space.

APPLICATIONS

Precision Output: 1% tolerance output voltages

•

Cellular Phone

available (A grade).

•

Palmtop/Laptop Computer

Low Noise: By adding a 10 nF bypass capacitor,

•

Personal Digital Assistant (PDA)

output noise can be reduced to 30 µV (typical).

•

Camcorder, Personal Stereo, Camera

Multiple voltage options, from 1.5V to 5.0V, are

available as standard products. Consult factory for

custom voltages.

Block Diagram

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2001–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.