Dual Switching Controller, Current-mode, 3A, 590kHz Switching Freq-Max, CMOS, PDSO28
LTC3412A - 3A, 4MHz, Monolithic Synchronous Step-Down Regulator; Package: TSSOP; Pins: 16; Temperature Range: -40°C to 85°C

Dual Switching Controller, Current-mode, 3A, 590kHz Switching Freq-Max, CMOS, PQCC32
Adjustable Positive LDO Regulator, 0.4V Min, 2.6V Max, 0.25V Dropout, CMOS, PDSO10
Switching Regulator, Current-mode, 6A, 4000kHz Switching Freq-Max, CMOS, PQCC16

Switching Controller, Current-mode, 1A, 600kHz Switching Freq-Max, PDSO10
LTC3429 - 600mA, 500kHz Micropower Synchronous Boost Converter with Output Disconnect; Package: SOT; Pins: 6; Temperature Range: -40°C to 85°C