DATA SHORT
To request the full datasheet, please visit www.intersil.com/products/isl95818 ISL95818 FN8428
Rev 1.00
March 19, 2013 3-Phase PWM Controller for VR12.5 and VR12.6+ CPUs Features Fully compliant with Intel VR12.5 and VR12.6+ specifications,
the ISL95818 provides a complete solution for microprocessor
core power supply. It provides a Voltage Regulator (VR) with
two integrated and one external gate drivers. The VR can be
configured as 3-, 2-or 1-phase, providing maximum flexibility.
The VR uses the serial control bus to communicate with the CPU
and achieves lower cost and smaller board area. Serial data bus Output configurable 3-, 2-or 1-phase using two integrated
gate drivers Precision core voltage regulation
-0.5% system accuracy over-temperature
-Enhanced load line accuracy Based on Intersil’s Robust Ripple Regulator (R3) technology™,
the PWM modulator compared to traditional modulators, has
faster transient settling time, variable switching frequency
during load transients and has improved light load efficiency
with its ability to automatically change switching frequency. Supports multiple current sensing methods
-Lossless inductor DCR current sensing
-Precision resistor current sensing Differential remote voltage sensing The ISL95818 has several other key features. The output
supports DCR current sensing with single NTC thermistor for
DCR temperature compensation or accurate resistor current
sensing. The output comes with remote voltage sense,
programmable VBOOT voltage, programmable ICCMAX, …