
This project is a 8-12Vdc to +48Vdc DC-DC converter based on
MC34063 switching regulator.
It's a simple project of a DC-DC converter to make a
phantom power supply for professional microphones.
It can deliver 15-20mA at 48VDC. It 's based on
MC34063 DC-DC step-up, step-down and boost
converter. Input is between 8-12V DC and the output
+48VDC/10-20mA.

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PCB dimensions

PCB top layer

PCB component placement

3D PCB renderings

Download project
files in Eagle format
Download board Gerber files