UTCMC34063 - Unisonic Technologies

UTCMC34063 DC TO DC CONVERTER CONTROLLER

The UTC MC34063 is a monolithic regulator subsystem, intended for use as DC to DC converter. This device contains a temperature compensated 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 .

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 100kHz.
*Step-up, step-down or inverting switch regulators. DIP-8 PIN CONFIGURATION Switch Collector Switch Emitter Timing Capacitor 1 8 Driver Collector 2 7 Lpk Sense 3 6 Vcc Gnd 4 5 Comparator Inverting input BLOCK DIAGRAM E SWITCH COLLECTOR T2 S Q R T1 SWITCH EMITTER D C Is A TIMING CAPACITOR CT OSCILLATOR 1 8 DRIVE COLLECTOR 2 7 Ipeak SENSE 3 6 Vcc COMP. GND 4 1.25Vref B 5 COMPARATOR.