DATA SHEET
LND48XX
400mA Low Dropout Voltage Regulators
GENERAL DESCRIPTION
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.
FEATURES
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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.
APPLICATIONS
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High-efficiency linear regulator
Battery powered systems
Portable/palm top/ notebook
Computers
Portable consumer equipment
Portable instrumentation
Automotive Electronics
SMPS Post Regulator
PIN DIAGRAM
Output
Common
Input
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TO – 220 Package
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Linear Dimensions, Inc.
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445 East Ohio Street, Chicago IL 60611 USA
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tel 312.321.1810
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fax 312.321.1830
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LINEAR_DIMENSIONS [ LINEAR DIMENSIONS SEMICONDUCTOR ]
