LND48XX

400mA Low Dropout Voltage Regulators

TO – 220 Package

DATA SHEET

GENERAL DESCRIPTION

•

400mA output within 2% over

temperature

•

Very low quiescent current

•

Low dropout voltage (420mV Typ)

•

Extremely tight load and line regulation

•

Very low temperature coefficient

•

Current and thermal limiting

•

Unregulated DC input can withstand –

20V reverse battery and +60V positive

transients

•

Direct replacement for SGS-Thomson-

L48XX Series, but has lower ground

current, higher accuracy of output

voltage and extremely tight load and

line regulation. The 5 pin version

(adjust model) and 4 pin version (fixed

model) have a shutdown input.

FEATURES

This series of fixed-voltage monolithic

micropower voltage regulators is designed for a

wide range of applications. This device is an

excellent choice for use in battery-powered

application. Furthermore, the quiescent current

increases only slightly at dropout, which

prolongs battery life.

This series of fixed-voltage regulators features

very low quiescent current(100mA Typ.) and

very low drop output voltage (Typ. 60mV at light

load and 420mV at 400mA). This includes a

tight initial tolerance of 0.5%typ. Extremely good

load and line regulation of 0.05% typ., and very

low output temperature coefficient. This series

of fixed-voltage regulators is offered in 3-pin TO-

220 package compatible with other fixed voltage

regulators. Adjust model is offered in 5-pin TO-

220 package and fixed model with shutdown

input is offered in 4-pin TO-220 package.

APPLICATIONS

•

High-efficiency linear regulator

•

Battery powered systems

•

Portable/palm top/ notebook

Computers

•

Portable consumer equipment

•

Portable instrumentation

•

Automotive Electronics

•

SMPS Post Regulator

• Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • www.lineardimensions.com •

PIN DIAGRAM

Output

Common

Input