Breadboard Power Module

Breadboard Power Module

Jan. 27, 2016

A simple source of +5 volts and +3.3 volts for digital experiments and +/- 5 volts for analog experiments with an on/off switch. Also includes LED's to show that outputs are powered.

Needs a regulated 5 volt DC power plug input. Uses a LD1117 LDO voltage regulator to generate a 1 amp 3.3 volt output and a LT1617 voltage inverter to convert 5 volts into a 100 mA -5 volt output.

Design

Pin headers are supplied for breadboard output. They are not labelled but are in the same order as terminal block output. Terminal block output is supplied for connecting heavier wires. The board fabrication company did not understand the tab shaped pins on the stock DC power jack footprint so the last revision of the board switches to a custom footprint with very large holes. Switching the input to a USB connector would make sense especially with the current ubiquity of 5 volt USB chargers.

Files

The Kicad files are here.