ISL95837HRZ-T

Key Features

    Serial Data Bus 

    Dual Outputs: 

        Configurable 3-, 2- or 1-phase for the 1st Output using 2 integrated Gate Drivers 

        1-phase for the 2nd Output using an Integrated Gate Driver 

    0.5% System Accuracy Over-Temperature 

    Supports Multiple Current Sensing Methods 

        Lossless Inductor DCR Current Sensing 

        Precision Resistor Current Sensing 

    Differential Remote Voltage Sensing 

    Programmable VBOOT Voltage at Start-up 

    Resistor Programmable IMAX, TMAX for Both Outputs 

    Adaptive Body Diode Conduction Time Reduction

Description

Compliant with IMVP-7/VR12™, the ISL95835 provides a complete solution for microprocessor and graphic processor core power supply. It provides two Voltage Regulators (VRs) with three integrated gate drivers. The first VR can be configured as 3-, 2- or 1-phase VR while the second output is 1-phase VR, providing maximum flexibility. The two VRs share the serial control bus to communicate with the CPU and achieve lower cost and smaller board area compared with the two-chip approach. 

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 it’s ability to automatically change switching frequency. 

The ISL95835 has several other key features. Both outputs support DCR current sensing with single NTC thermistor for DCR temperature compensation or accurate resistor current sensing. Both outputs come with remote voltage sense, programmable VBOOT voltage, programmable IMAX, TMAX, adjustable switching frequency, OC protection and separate Power-Good.

Applications

IMVP-7/VR12 Compliant Computers

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