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CC3200MOD: CC3200MOD with charging circuit

Part Number: CC3200MOD


Hi everyone,

Kindly help me to review this charging circuit. 
Charging Circuit: Charging for LI-PO 4.2V
Switching regulator: Switch 4.2 (output of charging circuit) to 3.3V (apply for my CC3200MOD system).

If I have both plugin USB and using BAT for the system. What's happen?

Thank you so much!

Thanks & Best Regards,
NhatThanh