NVIDIA Jetson Nano 4GB Dev Kit does not consistently power on when powering from DC jack

[soyazhek]

Hello,

I’m having some difficulty consistently powering on my Jetson Nano Dev Kit. It works consistently and properly when I’m powering it from a 5V 4A power adapter from the DC jack.

However, if I try to power it from the DC jack off of a buck converter, it doesn’t consistently boot up. The keyword is consistently because it boots up properly sometimes. In the times it does not boot up, it still gets ~5V at its 5V rails and DC jack.

My buck converter configuration is as follows: 2 cell LiPo battery → switch → buck → DC jack → nano.

The problem with inconsistent boot is also present when I turn the switch off and on.

Any help is greatly appreciated.

[Trumany]

Basically it looks like supply capability issue of your converter or battery supply since nano works fine with adapter. Maybe you can try other buck/battery or add some super capacitors to the 5V side.