Step Up DC-DC Converter – 12V TO 28V DC 175mA

Rajkumar Sharma      http://www.rajkumarsharma.com  
14835

The Step-Up DC-DC Converter project provides 28V, 175mA output with input of 12V DC. The MC34063A IC is heart of the project from On semiconductor. The MC33063A is a monolithic control circuit containing the primary functions required for DC-DC converters. This device 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 IC specially designed to be incorporated step-down, step-up, and voltage-inverting applications with minimum number of external components.

Features

  • Input 12V DC
  • Output 28V, 175mA
  • Output Voltage ¬†Adjustable By On-board Preset
  • Header Connector for Output/Input Connections
  • Low Standby Current

Schematic

Parts List

PCB

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