STMicroelectronics STPMIC1APQR, 12 Buck Boost Switching, Buck/Boost Converter 350mA, 2 Mhz 44-Pin, WFQFN 44L

The STMicroelectronics are highly integrated power management IC for micro processor units. It is a fully integrated power management IC designed for products based on high integrated application processor designs requiring low power and high efficiency.

I²C and digital IO control interface
4 adjustable general purpose LDOs
Input voltage range from 2.8 V to 5.5 V