ISL6556A Datasheet - Intersil

ISL6556A Optimized Multi-Phase PWM Controller

® Data Sheet December 29, 2004 ISL6556A FN9096.3 Optimized Multi-Phase PWM Controller with 6-Bit DAC for VR10.X Application The ISL6556A controls microprocessor core voltage regulation by driving up to 4 synchronous-rectified buck channels in parallel. Multi-phase 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 sma.

ISL6556A Features

* Precision Multi-Phase Core Voltage Regulation - Differential Remote Voltage Sensing - ±0.5% System Accuracy Over Temperature and Life - Adjustable Reference-Voltage Offset

* Precision rDS(ON) Current Sensing - Accurate Load-Line Programming - Accurate Channel-Current Balancing - Lo

ISL6556A-Intersil.pdf