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 +3.3V & +5V 1A Regulator Board

Circuits and Layouts

 

Circuit:

In order to power some general microcontroller projects and a small number of supporting devices a simple linear power supply was required, to this end a 7805 regulator(+5V 1Amax)and a LM1117-3.3 regulator (+3.3V 800mAmax)were employed as below:

 

 Stripboard:

Once the design was finalised it was transferred onto strip-board.

 As Built:

The as built circuit appeared as below and supplies regulated +3.3V and +5V from a fused +12V supply.