LP2966EP

Enhanced Plastic Dual 150mA Ultra Low-Dropout

Regulator

General Description

The LP2966EP dual ultra low-dropout (LDO) regulator oper-

ates from a +2.70V to +7.0V input supply. Each output

delivers 150mA over full temperature range. The IC operates

with extremely low drop-out voltage and quiescent current,

which makes it very suitable for battery powered and por-

table applications. Each LDO in the LP2966EP has indepen-

dent shutdown capability. The LP2966EP provides low noise

performance with low ground pin current in an extremely

small MSOP-8 package (refer to package dimensions and

connection diagram for more information on MSOP-8 pack-

age). A wide range of preset voltage options are available for

each output. In addition to the voltage combinations listed in

the ordering information table, many more are available

upon request with minimum orders. In all, 256 voltage com-

binations are possible.

ENHANCED PLASTIC

•

Extended Temperature Performance of −40˚C to +125˚C

•

Baseline Control - Single Fab & Assembly Site

•

Process Change Notification (PCN)

•

Qualification & Reliability Data

•

Solder (PbSn) Lead Finish is standard

•

Enhanced Diminishing Manufacturing Sources (DMS)

Support

Key Specifications

Dropout Voltage: Varies linearly with load current. Typically

0.9 mV at 1mA load current and 135mV at 150mA load

current.

Ground Pin Current: Typically 300µA at 1mA load current

and 340µA at 100mA load current (with one shutdown pin

pulled low).

Shutdown Mode: Less than 1µA quiescent current when

both shutdown pins are pulled low.

Error Flag: Open drain output, goes low when the corre-

sponding output drops 10% below nominal.

Precision Output Voltage: Multiple output voltage options

available ranging from 1.8V to 5.0V with a guaranteed accu-

Features

n

Ultra low drop-out voltage

n

Low ground pin current

1µA quiescent current in shutdown mode

n

Independent shutdown of each LDO regulator

n

n

Guaranteed 150mA output current at each output

n

Low output noise

n

Error Flags indicate status of each output

n

Available in MSOP-8 surface mount packages

n

Low output capacitor requirements (1µF)

n

Operates with Low ESR ceramic capacitors in most

applications

n

Over temperature/over current protection

Applications

n

GPS systems

n

Selected Military Applications

n

Selected Avionics Applications

Ordering Information

PART NUMBER

VID PART NUMBER

NS PACKAGE NUMBER (Note 3)

LP2966MX3325EP

V62/04638-01

MUA08A

(Note 1) (Note 2)

TBD

TBD

Note 1: For the following (Enhanced Plastic) versions, check for availability: LP2966MM1818EP, LP2966MM1828EP, LP2966MM1830EP,

LP2966MM1833EP,

LP2966MM2518EP,

LP2966MM2525EP,

LP2966MM2828EP,

LP2966MM2830EP,

LP2966MM3030EP,

LP2966MM3325EP,

LP2966MM3333EP,

LP2966MM3336EP,

LP2966MM3636EP,

LP2966MM5050EP,

LP2966MX1818EP,

LP2966MX1828EP,

LP2966MX1830EP,

LP2966MX1833EP,

LP2966MX2518EP,

LP2966MX2525EP,

LP2966MX2828EP,

LP2966MX2830EP,

LP2966MX3030EP,

LP2966MX3333EP,

LP2966MX3336EP, LP2966MX3636EP, LP2966MX5050EP. Parts listed with an "X" are provided in Tape & Reel and parts without an "X" are in Rails.

Note 2: FOR ADDITIONAL ORDERING AND PRODUCT INFORMATION, PLEASE VISIT THE ENHANCED PLASTIC WEB SITE AT: www.national.com/

mil

Note 3: Refer to package details under Physical Dimensions

May 2004

© 2004 National Semiconductor Corporation

DS200993

www.national.com