power management

Hi,

I was looking at DA14695 for my wearable application and came across the integrated power management system.

I want to know if this can be used as a battery management system for the entire circuit, meaning, can I use the power rails to power my other sensors (running at 1.8V).

Secondly, I want to run the entire circuit at 1.8V. How do I shift the running voltage from 3.3 to 1.8 V, while running on the battery?