5V is one of the most widely used supply voltage in electronics. It is the standard voltage for all USB powered devices. Single board computers such as the Raspberry Pi and Beaglebone Black are also powered by 5V supply. There are many LED drives that needs 5V as well.
This buck converter gives you a fixed 5V DC output when 7V-24V supply is connected to the input terminals. So, if you need 5V from a higher voltage old power supply, car power socket or battery, this module is for you.
The + and - terminals are marked on the underside of the board. Pay attention when making connection as connecting to the wrong terminal might damage the board. There is a status LED to indicate when the board is powered. The output connector is type A female USB socket, making it very useful to power USB devices.
Because of the compact size and wide input voltage range, you can use this buck converter to make a portable power source. There are four mounting holes, so you can screw in this module to anywhere you want.
