The ISL6307B controls microprocessor core voltage regulation by driving up to 6 synchronous-rectified buck channels in parallel. Multiphase buck converter architecture uses interleaved timing to multiply channel ripple frequency and reduce input and output ripple currents. Lower ripple results in fewer components, lower component cost, reduced power dissipation, and smaller implementation area. Microprocessor loads can generate load transients with extremely fast edge rates. The ISL6307B features a high bandwidth control loop and ripple frequencies up to 6MHz to provide optimal response to the transients. Today's microprocessors require a tightly regulated output voltage position versus load current (droop). The ISL6307B senses current by utilizing patented techniques to measure the voltage across the on resistance, RDS(ON), of the lower MOSFETs or DCR, of the output inductor during the lower MOSFET conduction intervals. Current sensing provides the needed signals for precision droop, channel-current balancing, and overcurrent protection. A programmable internal temperature compensation function is implemented to effectively compensate for the temperature coefficient of the current sense element.