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DATA SHEET
LND34063A
DC-to-DC Converter Control Circuits
GENERAL DESCRIPTION
The LND34063A is a monolithic control circuit
containing the primary functions required for
DC-to-DC converters This device consist of an
internal temperature compensated reference,
comparator, controlled duty cycle oscillator
with an active current limit circuit, driver and
high current output switch. This device was
specifically designed to be incorporated in
Step-down and Step-up and Voltage-Inverting
applications with a minimum number of
external components.
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FEATURES
Operation from 3.0V to 40V Input
Low Standby Current
Current Limiting
Output Switch Current to 1.5A
Frequency Operation to 100kHz
Precision 2% Reference
PIN CONNECTIONS
Switch
Collector
Switch
Emitter
Timing
Capacitor
Ground
Driver
Collector
LND34063A
Ipk
Sense
V
CC
Comparator
Inverting
Input
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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 ]
