Fully compliant with Intel VR12. 5, VR12. 6 and VR12. 6+™ specifications, the ISL95812 provides a complete solution for microprocessor core power supply. It provides a Voltage Regulator (VR) with two integrated and one external gate drivers. The VR can be configured as 3-, 2- or 1-phase, providing maximum flexibility. The VR uses the serial control bus (SVID) to communicate with the CPU and achieves lower cost and smaller board area. 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 its ability to automatically change switching frequency. The ISL95812 has several other key features. The output supports DCR current sensing with single NTC thermistor for DCR temperature compensation or accurate resistor current sensing. The output comes with remote voltage sense, programmable VBOOT voltage, programmable ICCMAX, programmable voltage transition slew rate, adjustable switching frequency, overcurrent protection and Power-Good output.


  • Serial data bus
  • Output configurable 3-, 2- or 1-phase using two integrated gate drivers
  • Precision core voltage regulation
  • 0.5% system accuracy over-temperature
  • Enhanced load line accuracy
  • 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 ICCMAX and voltage transition slew rate
  • Adaptive body diode conduction time reduction


  • Notebook computers
  • Desktop computers

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active QFN Tube 75
Active QFN Reel 6000
Active QFN Tube 75
Active QFN Reel 6000

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL95812 Datasheet Datasheet PDF 1.70 MB
ISL95812 Data Short Short Form Datasheet PDF 186 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
PCN21005 - Alternate assembly facility of the listed Renesas DFN / QFN / TDFN / TQFN packaged products Product Change Notice PDF 158 KB
PCN16074 - Alternate test facility of Intersil ISL95812* and ISL95813* series products Product Change Notice PDF 72 KB