Overview

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. The ISL95837 can be considered as ISL95835 dedicated for 1+1 application. VR1 and VR2 are both 1-phase VR.

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

Comparison

Applications

Applications

  • IMVP-7/VR12 Compliant Computers

Documentation

Type Title Date
Datasheet - Short-form PDF 185 KB
Product Change Notice PDF 110 KB
Product Change Notice PDF 294 KB
Product Change Notice PDF 223 KB
Datasheet Log in to Download PDF 3.28 MB
Product Advisory PDF 200 KB
Application Note PDF 509 KB
Application Note PDF 397 KB
8 items

Design & Development

Software & Tools

Software & Tools

Software title
Software type
Company
iSim:PE Offline Simulation Tool
iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
Simulator Renesas
1 item

Models