Configuration to use batteries when connected to VBAT

Question: How do I use batteries to power up the CYRF6936?

 

Answer:

For this a boost converter might be required and the device will operate in PMU(power management unit) Enabled mode. External inductor, diode, and capacitors are also required for the PMU. For details of PMU, refer to the device datasheet (attached), it gives an example shcematic for PMU enabled mode.