Reference manual for the Artekit AK-USBSUPPLY-C board.


The Artekit AK-USBSUPPLY-C board takes power from an external power supply through an USB type C cable and delivers 3.3V and 5V through two dedicated pins. This board can be used to supply 5V and/or 3.3V to other peripherals and boards by using a standard wall charger, USB hub or a PC USB port.

An Artekit AK-USBSUPPLY-C board.

Features and Characteristics

  • Simultaneous 3.3V and 5V power outputs on separated rails.
  • 3.3V DC @ max. 800mA.
  • 5V DC @ max. 3A.
  • Operating temperature: -20ºC/+80ºC
  • Compact size.
  • Indicator LED.

The CC1 and CC2 pins of the mounted USB-C connector are connected to ground through two 5.1K Ohm resistors. This means that when the AK-USBSUPPLY-C board is connected to a host capable of detecting the board’s power capabilities (wall charger or hub with USB-C standard, for example) it can deliver up to 3A on the 5V rail and 800mA on the 3.3V rail (the board mounts an STMicroelectronics LD1117 low-dropout regulator for generating 3.3V, with a maximum output current of 800mA). When used with a USB 2.0 host or power supply, the board can deliver maximum 500mA on both the 3.3V and 5V rails.


AK-USBSUPPLY-C hardware overview.

The AK-USBSUPPLY-C board is very easy to use. It just requires connecting the board to a host or a wall charger through a USB-C cable. The LED will turn-on when the board is operating correctly and supplying power.

AK-USBSUPPLY-C connected to a host.

Board dimensions

AK-USBSUPPLY-C board dimensions.

Additional resources