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MC34063A/MC33063A
SMPS Controller
Features
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Operation from 3.0 to 40V input
Short circuit current limiting
Low standby current
Output switch current of 1.5A without external transistors
Output voltage adjustable
Frequency of operation from 100Hz to 100KHz
Step up, Step down or inverting switching regulators
Description
The MC34063A/MC33063A is a monolithic regulator sub
system intended for use as DC to DC converter. This device
contains a temperature compensated bandgap reference, a
duty cycle control oscillator, driver and high current output
switch. It can be used for step down, step up or inverting
switching regulators as well as for series pass regulators.
8-DIP
1
8-SOP
1
Internal Block Diagram
Rev. 1.0.2
©2001 Fairchild Semiconductor Corporation
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
