The ISL95869 is fully compliant with Intel IMVP9 specifications and provides a complete solution for the processor's main input rail 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 the Renesas Robust Ripple Regulator (R3™) technology, the R3 modulator has many advantages compared to traditional modulators. These advantages include faster transient settling time, variable switching frequency in response to load transients, and improved light load efficiency due to Diode Emulation mode with load-dependent low-switching frequency. The ISL95869 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 VR_READY power-good output. The ISL95869 supports the system input power (PSYS) monitoring with alternate VSYS mode. The controller complies with PS4 power requirements and supports ISL95808 drivers that are compatible.

Features

  • VIN input range: +4.5V to +25V
  • Supports Intel DAC and serial data bus interface
    • 10mV step 2.74V DAC support
  • Output configurable 3-, 2-, or 1-phase using two integrated gate drivers
  • 0.5% system accuracy over-temperature
  • Low supply current in PS4 state meeting Intel specifications
  • Supports multiple current sensing methods
    • Lossless inductor DCR current sensing
    • Precision resistor current sensing
  • Differential remote voltage sensing
  • Supports system input power monitor (PSYS)
  • Programmable VBOOT voltage at start-up
  • Resistor programmable ICCMAX, slew rate and switching frequency
  • Adaptive body diode conduction time reduction
  • Acoustic Noise Reduction (ANR) with advanced decay slew rate limiter
  • Up to 750kHz switching frequency
  • RoHS-compliant 4x4 TQFN package

Applications

  • IMVP9 notebook and Ultrabook computers
  • IMVP9 desktop computers
  • IMVP9 tablets or similar hand-held devices

Product Options

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

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL95869 Datasheet Datasheet PDF 1.75 MB
ISL95869 Data Short Short Form Datasheet PDF 120 KB
Application Notes & White Papers
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB