ISL6556A Overview
® 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...
ISL6556A Key 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
- Low-Cost, Lossless Current Sensing
- Internal Shunt Regulator for 5V or 12V Biasing
- Microprocessor Voltage Identification Input
