avatar

The Great Search: 12V to 5V 2+ Amp buck converter

Adafruit Industries
Adafruit Industries
Episode • Jul 24, 2023 • 17m
This week we're working on reviving our old floppy hacking projects by making a dev board that will let us connect to various old-school disk drives to either control or emulate them (https://github.com/adafruit/Adafruit_Floppy).

These devices used lots of motors and solenoids to spin and eject the discs, so we will need to be able to provide them with a good amount of current.

For 3 1/2" floppy drives, 5 Volts at 1 Amp or so is not unusual, and we expect larger disk drives may need even more power. For the other motors, we'll want to have a 12 V power supply input, so we need to convert 12V to 5V, and at these currents, an LDO like the 1117-series (https://www.digikey.com/short/z8vtf00m) will have to dissipate way more heat than we'd be able to get rid of - that's when a buck converter is a great alternative.

Let's find a powerful and affordable converter that can provide 2A or more.

See the chosen part on DigiKey https://www.digikey.com/short/4wfzc22j

Visit the Adafruit shop online - http://www.adafruit.com