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Answer
No, if VBAT is 3.6V or greater, this power source should be used for VDDIO_RF, and USB2_AVDD33 if strapped for USB. Otherwise leave this pin disconnected.
No, if VBAT is 3.6V or greater, this power source should be used for VDDIO_RF, and USB2_AVDD33 if strapped for USB. Otherwise leave this pin disconnected.