The LT3973IMSE-3.3PBF is a dual buck regulator step-down switching converter from the LTC family of low-power switching-mode power supplies from Analog Devices. The device has an input voltage that ranges from 2.6V to 45V, making it suitable for a variety of systems. The LT3973IMSE-3.3PBF features a single output channel with a current rating of 6A, a switching frequency of 250kHz, and a efficiency of 97%. Other features include a high accuracy voltage reference, adjustable soft-start, cycle-by-cycle current limit and over-voltage protection. The LT3973IMSE-3.3PBF is offered in a 16-lead, 2mm X 3mm QFN package, which makes it suitable for a variety of applications such as industrial control, consumer electronics and computing systems.