I’d like to power two 3.3V, 3W, LEDs off of the Jetson Nano. Pin 1 and Pin 17 provide 3.3V output, but is there a current limit on these pins? Assuming I’m using a barrel jack connection to power the Nano, could I get ~1A out of each of them?
It is OK for 1A output.
Is 1A the max? Is there a max, or is it whatever is left from the power supply?
The power supply capability of 3.3v is about 3A, but as it is also routed to other devices, not all can be for pin 1 and 17. So you can take it as ~3A in max, but sure be sufficient for 1A on pins.