LND34063A Datasheet, PDF (1/7 Pages) Linear Dimensions Semiconductor – DC-to-DC Converter Control Circuits

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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.
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
LND34063A
Driver
Collector
I _pk
Sense
V
CC
Comparator
Inverting
Input
• Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel [phone] • fax [phone] • www.lineardimensions.com •