Skip to product information
1 of 4


MC34063A DC-DC Converter SMD IC

MC34063A DC-DC Converter SMD IC

SKU SKU Code: # MM201

Regular price
Regular price Sale price
Sale Sold out
Shipping calculated at checkout.

In stock

View full details


The  MC34063A  Series is a  monolithic control circuit containing the primary functions required for DC–to–DC converters. These devices 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 series was specifically designed to be incorporated in inStep–Down and  Step–Up and  Voltage–Inverting applications with a minimum number of external components.  Refer to  Application  NotesAN920A/D and AN954/D for additional design information.

MC34063 Pinout Configuration

Pin Number Pin Name Description
1 Switch Collector Collector pin of Internal transistors (Output Voltage pin)
2 Switch Emitter Emitter pin of Internal Transistors
3 Timing Capacitor Connect to a capacitor which decides the switching frequency
4 Ground Connected to ground
5 Comparator Inverting Input Used to set the output voltage
6 Vcc Input voltage is fed to this pin
7 Ipeak Sense Used to set the output current
8 Driver Collector Collector pin of switching transistor

Power Supply Voltage 40Vdc
Switch Collector Voltage 40Vdc
Switch Emitter Voltage  40Vdc
Switch Collector to Emitter Voltage 40Vdc
Driver Collector Voltage 40Vdc
Driver Collector Current  100mA
Switch Current 1.5A
Operating Ambient Temperature Range 0 to +70