Can SONIX USB IC Vreg3.3 provide power supply for peripheral device?
Currently, SONIX low-speed USB IC (2200 series) Vreg3.3 can not power its peripheral
device; Vreg3.3 of full speed IC (2210, 2230, 2250, 2270 series) can provide a maximum
of 60mA current, so choosing Vreg3.3 power depends on your design requirements. There
are some others need to be paid attention, when used as external power supply, Vreg
must be connected to ground through 10uF capacitance.