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 1-phase for the 1st Output using an integrated Gate Driver
  • 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

Applications

  • IMVP-7/VR12 Compliant Computers

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active QFN Tube 60
Availability
Active QFN Reel 6000
Availability
Active QFN Tube 60
Availability
Active QFN Reel 6000
Availability

Documentation

Title language Type Format File Size Date
Datasheets & Errata
ISL95835, ISL95837 Datasheet Datasheet PDF 3.28 MB
ISL95835, ISL95837 Data Short Short Form Datasheet PDF 185 KB
Application Notes & White Papers
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 KB
PCNs & PDNs
PA12014 - Data Sheet Specification Change for Intersil Products ISL95835* and ISL95837* Product Advisory PDF 200 KB
PCN14038 - TQFN and QFN assembly transfer to Carsem Product Change Notice PDF 110 KB
PCN14036 - Wafer fabrication Site Change for Listed Intersil Products - Palm Bay, Florida Product Change Notice PDF 294 KB
PCN13060 - Test Site Change for the Listed Intersil Products Product Change Notice PDF 223 KB
Other
ISL95837 AXG iSim:PE Model Schematic SXSCH 327 KB
ISL95837 iSim:PE Model Schematic SXSCH 291 KB