Power converter running hot when using display

Development Boards Artemis
1

Hi,

I got a RedBoard Artemis ATP to start developing for a project. The peripherals I want to use are a 9" display from 4D Systems plus a few qwiic sensors.

I can run everything fine off of the USB-C connector on the RedBoard.

If I try to run things using a 12V supply connected to the RedBoard, the power converter chip gets quite hot.

If I unplug the display from the board, it runs cool.

According to the 4D docs, the display should be drawing 500-600mA

Is this expected?

Thanks!

2

Yep, that’s normal.

The more voltage you need to drop in the regulator and current you’re putting through it, the hotter it’s going to run.

Dropping down to 7 volts would be recommended to keep things running cool.