ISL95855 Datasheet | Renesas

DATA SHORT To request the full datasheet, please visit .intersil./products/isl95855 3+2+1 Voltage Regulator for IMVP8™ CPUs FN8741 Rev 0.00 June 16, 2015 pliant with IMVP8™, the ISL95855 provides a plete power solution for Intel microprocessors supporting core, graphics and system agent rails. The controller provides control and protection for three Voltage Regulator (VR) outputs. The VR A output can be configured for 3-, 2- or 1-phase operation. VR B is configurable for 2- or 1-phase operation and VR C supports 1-phase operation. The address options programmable for these three outputs allow for maximum flexibility in support of the IMVP8™ CPU. All three VRs share a mon serial control bus to municate with the CPU and achieve lower cost and smaller board area pared with a two-chip approach. Based on Intersil’s Robust Ripple Regulator (R3™) technology, the R3™ modulator has many advantages pared 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 ISL95855 has several other key Features . The controller provides PWM outputs, which support Intel Dr MOS power stages (or similar) and discrete power stages using the Intersil ISL95808 high voltage synchronous rectified buck MOSFET driver. The controller plies with IMVP8™ PS4 power requirements and supports power stages and drivers which are patible. The ISL95855 supports the system input power monitor (PSYS) option. The controller supports either DCR current sensing with a single NTC thermistor for DCR temperature pensation, or more precision through resistor current sensing if desired. All three outputs feature remote voltage sense, programmable IMAX, adjustable switching frequency, OC protection and a single VR_READY power-good indicator. Features - Support Intel serial data bus...