In the past, I always avoided projects that require split rail power because of the extra effort needed to get that negative rail. To solve this problem, I designed a simple +5V to -5V switching converter PCB to provide a negative rail from USB. Once connected to power, the right power rail of the breadboard will be +5V and the left power rail will be -5V.

Features

• USB type C connector!
• Up to 250mA on the -5V rail

This module is designed to sit on top of a breadboard, providing power from USB C for your breadboard projects. There are times that a -5V rail isn't needed, so I designed this module so that the -5V output can be disabled. By changing the setting of the jumper, the left power rail can be either +5V or -5V. Also, there are red LED and green LED to indicate the active voltage is -5V and +5V, respectively. For more information and testing data, please refer to the datasheet.