DATA SHORT
To request the full datasheet, please visit www.intersil.com/products/ISL95866 4+3 Multiphase R3в„ў PWM Regulator for Intel IMVP8в„ў
Desktop CPUs with SMBus Support
ISL95866 Features Compliant with Intel IMVP8в„ў, the ISL95866 provides a
complete power solution for desktop microprocessors
supporting the core (IA), graphics (GT), or unsliced graphics
(GTUS or GTX). The controller provides control and protection
for two Voltage Regulators (VR). The first VR can be configured
for 4-, 3-, 2-or 1-phase operation. The second VR is
configurable for 3-, 2-or 1-phase operation. The VRs feature a
programmable SVID address to allow maximum flexibility in
supporting desktop processor SKUs. Both controller outputs share
a common serial control bus to communicate with the CPU and
achieve lower cost and smaller board area compared with a twochip approach. Supports Intel serial data bus interface Based on Intersil’s Robust Ripple Regulator R3™ technology,
the R3в„ў modulator has many advantages compared to
traditional modulators. These include faster transient settling
time, variable switching frequency in response to load
transients and improved light-load efficiency due to diode
emulation mode with load-dependent low switching frequency.
The ISL95866 has several other key features. The controller
features three integrated +12V gate drivers with two on the
VR A output. The controller supports either DCR current
sensing with a single NTC thermistor for DCR temperature …