Synchronous step-down controller delivers true current mode control

LINEAR TECHNOLOGY LTC3866 current mode synchronous step-down dc-dc controller permits the use of very low dc resistance power inductor using a novel DCR sensing architecture that enhances the signal-to-noise ratio of the current sense signal. Device operates from a 4.5V to 38V input voltage range and provides a power inductor dc resistance of as low as 0.17 milliohms. Product can be paralleled for even higher power multiphase applications.

http://www.linear.com/product/LTC3866