DATASHEET
To request the full datasheet, please visit www.intersil.com/products/isl95825 Three Phases PWM Controller for VR12.5/VR12.6 CPUs
ISL95825 Features The ISL95825 Pulse Width Modulation (PWM) controller IC
provides a complete solution for VR12.5в„ў/VR12.6в„ў
compliant microprocessor core power supplies. It provides the
control and protection for a Voltage Regulator (VR). The VR can
operate in 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 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.
The ISL95825 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. The output comes with remote
voltage sense, programmable VBOOT voltage, ICCMAX, voltage
transition slew rate and switching frequency, adjustable
overcurrent protection and Power-Good signal. VDD 0.5% system accuracy over-temperature Supports multiple current sensing methods
-Lossless inductor DCR current sensing
-Precision resistor current sensing Differential remote voltage sensing Resistor programmable ICCMAX, VBOOT at start-up, voltage …
