I'm wanting to power an xbee from 3C batteries. I've followed the suggested layout from the documentation however, when I check the voltage I get anywhere beteween VCC which is around 4.8 volts with 3 fresh batteries down to 2. somethings. The voltage seems to cycle. What am I doing wrong here? Attached is my PCB layout and schematic. I'm using ceramic capacitors and this inductor: Taiyo Yuden CBC3225T100KR