Current requirments during Flashing

Anyone have any idea how much current is required at 3v3 when Flashing new code?

never measured it. was of no interest because wen flashing it is powered from the usb port which give max 500mA

It is of interest to me, as we have our own PCB that takes the module, and we have a separate programming adapter, to save putting the USB UART bridge etc. on every unit.
The person who designed it(not me), assumed that the <100mA available from the CP2102 would be sufficient, but we have had some problems, which is why I was asking the question.
I was hoping that someone from Heltec might know. It’s the sort of information I’m used to finding in datasheets, to be honest.