Can you explain your use case on this?
If USB is plugged in, I don’t care about the power consumption. But if I remove it, I would like to power down the RP2040 and so the BUCK2. That didn’t work, at least not in my tests so far.
If USB is not plugged in, and I don’t disable BUCK2, my quiescent current is about 800µA (or so).
If USB is not plugged in, and I disable BUCK2, my quiescent current is about 25µA (or so).
But if I disable BUCK2 and plugin USB for logging, that doesn’t work. If I power the RP204 again switching on BUCK2, it doesn’t work either, at least not in my tests so far.
So my idea is simple:
If USB is plugged, even in a running device, I would like to have logging.
If USB is unplugged, even from a running device, I would like to have the 25µA.
As I wrote: For now I just detect that at the boot time. That will also work for me. But a dynamic solution in the future would be more, what I consider others to expect.
