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MC34063 Series Datasheet

MC34063

DC/DC switching regulator converter

The MC33063A and MC34063A devices are easy-to use ICs containing all the primary circuitry needed for building simple DC-DC converters.These devices primarily consist of an internal temperature-compensated reference, a comparator, an oscillator,a PWM controller with active current limiting, a driver,a PWM controller with active current limiting, a driver require minimal external components to build converters in the boost, buck, and inverting topologies.

MC34063 Pin Configuration and Function

MC34063 Pin Configuration and Function


Pin Number

Pin Name

Description

1

Switch Collector

High-current
  internal switch collector input.

2

Switch Emitter

High-current
  internal switch emitter output.

3

Timing Capacitor

Attach a timing capacitor to change the   switching frequency.

4

GND

Ground

5

Comparator Inverting Input

Attach to a resistor divider network to   create a feedback loop.

6

VCC

Logic supply voltage. Tie to VIN.

7

IPK

Current-limit sense input.

8

Driver Collector

Darlington pair driving transistor   collector input.


MC34063 Series Datasheet

Part No
Picture
Manufacturer
Package
Description
Datasheet
MC34063AD
MC34063AD
TI
SOIC

Inverting Regulator 1.5A Boost/Buck/Inverting Switching Regulator Conv DC-DC 3V to 40V Inv/Step Up/Step Down Single-Out 1.25V to 40V 1.5A 8Pin SOIC Tube

MC34063ADR2G
MC34063ADR2G
ON Semiconductor
SOIC

Conv DC-DC 3V to 40V Non-Inv/Inv/Step Up/Step Down Single-Out 1.25V to 40V 1.5A 8Pin SOIC N T/R

MC34063ABD-TR
MC34063ABD-TR
ST Microelectronics
SO

Buck, Boost Switching Regulator IC Positive or Negative Adjustable 1.25V 1 Output 1.5A (Switch) 8-SOIC (0.154", 3.9mm Width)

MC34063EBD-TR
MC34063EBD-TR
ST Microelectronics
SOIC

Buck, Boost Switching Regulator IC Positive or Negative Adjustable 1.25V 1 Output 1.5A (Switch) 8-SOIC (0.154", 3.9mm Width)

MC34063AP
MC34063AP
TI
DIP

Conv DC-DC 3V to 40V Inv/Step Up/Step Down Single-Out 1.25V to 40V 1.5A 8Pin PDIP Tube

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