Hi,
Please verify below design.
We have designed a circuit for remote controller application. In Power management stage, we used TPS61201DRC boost converter chip to boost the voltage from 3V ( 2 alkaline AAA duracell batteries series connected) to 3.3V 300mA. We need 3.3V 300mA for our application from two AAA batteries. We won't get that much voltage from battery and also want to increase the lifetime of battery, there fore we used TPS61201DRC converter in our design.