UTCMC34063A
UTCMC34063A is DC TO DC CONVERTER CONTROLLER manufactured by Unisonic Technologies.
DESCRIPTION
The UTC MC34063A is a monolithic regulator subsystem, intended for use as DC to DC converter. This device contains a temperature pensated band gap 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.
SOP-8
FEATURES
- Operation from 3.0V to 40V.
- Short circuit current limiting.
- Low standby current.
- Output switch current of 1.5A without external transistors.
- Frequency of operation from 100Hz to 100k Hz.
- Step-up, step-down or inverting switch regulators.
DIP-8
PIN CONFIGURATION
Switch Collector Switch Emitter Timing Capacitor 1 8 Driver Collector
Lpk Sense
Vcc
Gnd
5 parator Inverting input
BLOCK DIAGRAM
E SWITCH COLLECTOR T2 S Q R T1 SWITCH EMITTER D C Is A TIMING CAPACITOR CT
OSCILLATOR
DRIVE COLLECTOR
Ipeak SENSE
Vcc
P. GND
1.25Vref B
PARATOR INVERTING...
