DATA SHORT
To request the full datasheet, please visit www.intersil.com/products/isl95816 ISL95816 FN7979
Rev 0.00
August 2, 2013 4-Phase PWM Controller for VR12.5 CPUs Features The ISL95816 Pulse Width Modulation (PWM) controller IC
provides a complete solution for VR12.5в„ў compliant
microprocessor core power supplies. It provides the control
and protection for a Voltage Regulator (VR). The VR can
operate in 4-, 3-, 2-or 1-phase configurations. The VR uses a
serial control bus to communicate with the CPU and achieve
lower cost and smaller board area. Serial data bus Configurable 4-, 3-, 2-or 1-phase R3 Modulator
-Excellent transient response
-High light load efficiency The VR utilizes Intersil’s Robust Ripple Regulator R3
Technologyв„ў. The R3 modulator has numerous advantages
compared to traditional modulators, including faster transient
response, variable switching frequency during load transients,
and improved light load efficiency due to its ability to
automatically change switching frequency. 0.5% System accuracy over-temperature Supports multiple current sensing methods
-Lossless inductor DCR current sensing
-Precision resistor current sensing The ISL95816 has several other key features. It supports either
DCR current sensing with a single NTC thermistor for DCR
temperature compensation, or more precise resistor current
sensing if desired; remote voltage sense; programmable
VBOOT voltage, IMAX, voltage transition slew rate and switching …
