The LTC3542IS6#TRMPBF is a dual, high efficiency, current mode, step-down switching regulator controller with power tracking capability from Analog Devices. It has an operating input voltage range of 4.5V to 28V and switch frequency of up to 2MHz. It can deliver output currents up to 5A and output current sharing between channels up to 20A. It supports synchronizing up to 16 devices. Other features include tracking, sequencing, cycle-skip, spread spectrum, remote enable, current limiting and short circuit protection.