Monolithic Power Systems MP86949 45 A power stage

Texas Instruments TPS51285ARUK dual synchronous step-down controller w/ LDOs

Silergy SY8388ARHC 8 A synchronous step-down regulator

Silergy synchronous step-down converter (likely)

Monolithic Power Systems DC-DC converter (likely)

Torex Semiconductor XC6223K3019R-G 300 mA / 3.00 V LDO regulator

Texas Instruments TMUX154ERSWR 2-ch. SPDT analog switch