Compliant with IMVP-7/VR12™, the ISL95831 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 ISL95831 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.


  • 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


  • IMVP-7/VR12 Compliant Computers

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active TQFN Tube 50
Active TQFN Reel 4000
Active TQFN Tube 50
Active TQFN Reel 4000

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL95831 Datasheet Datasheet PDF 2.47 MB
ISL95831 Data Short Short Form Datasheet PDF 191 KB
Application Notes & White Papers
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
PCN14036 - Wafer fabrication Site Change for Listed Intersil Products - Palm Bay, Florida Product Change Notice PDF 294 KB
PCN11136 - Alternate Manufacturing Site for Assembly of the Listed Intersil QFN Products - STATS ChipPAC (SCM) - Kuala Lumpur, Malaysia Product Change Notice PDF 97 KB
PCN11091 - Alternate Manufacturing Site for Intersil ISL95831* Products - Unisem (UNM) Ipoh, Malaysia Product Change Notice PDF 140 KB
ISL95831 Core iSim:PE Model Schematic SXSCH 492 KB
ISL95831 AXG iSim:PE Model Schematic SXSCH 329 KB