Load switch MOSFET: VDSS 12-20v
Battery MOSFET: VDSS 12-20v, p-channel
Boost MOSFET: VDSS 12-20v, N channel
TVS (ESD) : antenna protection/mobile applications
Diode (Schottky rectifier) : VR: 20-40V IF > 200mA
Control MOSFET: low current load switch VDSS 12-20V, n-channel

There is a balance to be struck between ultra-long battery life and always-on functionality-energy efficiency is very important
Low power consumption is essential for these small wearable devices
Requires very small package or wafer-level chip occupation area
For more energy-efficient wired charging, you can use two back-to-back mosfets instead of built-in Schottky diode.”