Hi, I’ve been trying to power the Jetson Nano with various 5V voltage regulators from Pololu with no success. I was wondering if you guys have a Nano on hand, and have tried powering one with the Pololu regulators? I’m wondering if there is something in the electrical design of the jetson nano boards that conflicts with pololu’s regulators that I don’t quite understand.
I’ve tried the following products from Pololu:
5V 5A D24V50F5
5V 9A D24V90F5
I am powering the Nano via pins 2,4 for 5V, and 6, 9 for GND as noted here. The forum post claims that each pin takes up to 3A, but that is actually incorrect and according to the Jetson Nano manual/datasheet, each pin should be expected to take in 2.5A, which should be inline with both regulators I tried from Pololu. Additionally, when I try powering the nano directly from a benchtop power supply, I see that the current averages 0.5A-1A, which should be well within the limits of both regulators. I unfortunately don’t have an oscilloscope on hand to inspect the voltage at a high resolution.
In all cases when powering from the regulator, the Nano would boot up, and after a few seconds shutdown. The time it takes to shutdown is always the same, and I think it is the same time as when the USB peripherals receive power. I have tried putting a 1uF and 10 uF capacitor between 5V/GND, but that didn’t do anything.