The ISL6366 is a dual PWM controller; its 6-phase PWMs control the microprocessor core or memory voltage regulator, while its single-phase PWM controls the peripheral voltage regulator for graphics, system agent, or processor I/O. The ISL6366 utilizes Intersil's proprietary Enhanced Active Pulse Positioning (EAPP) modulation scheme to achieve extremely fast transient response with fewer output capacitors. The ISL6366 is designed to be compliant to Intel VR12/IMVP7 specifications. It accurately monitors the load current via the IMON pin and reports this information via the IOUT register to the microprocessor, which sends a PSI# signal to the controller at low power mode via SVID bus. The controller enters 1 or 2-phase operation in low power mode (PSI1); in the ultra-low power mode (PSI2, 3), it operates in single phase with diode emulation option. In low power modes, the magnetic core and switching losses are significantly reduced, yielding high efficiency at light load. After the PSI# signal is de-asserted, the dropped phase(s) are added back to sustain heavy load transient response and efficiency. today's microprocessors require a tightly regulated output voltage position versus load current (droop). The ISL6366 senses the output current continuously by measuring the voltage across a dedicated current sense resistor or the DCR of the output inductor. The sensed current flows out of the FB pin to develop a precision voltage drop across the feedback resistor for droop control. Current sensing also provides information for channel current balancing, average overcurrent protection and individual phase current limiting. The TM and TMS pins sense an NTC thermistor's temperature, which is internally digitized for thermal monitoring and for integrated thermal compensation of the current sense elements of the respective regulator. The ISL6366 features remote voltage sensing and completely eliminates any potential difference between remote and local grounds. This improves regulation and protection accuracy. The threshold-sensitive enable input is available to accurately coordinate the start-up of the ISL6366 with other voltage rails.


  • Intel VR12/IMVP7 Compliant
  • SerialVID with Programmable IMAX, TMAX, BOOT, ADDRESS OFFSET Registers
  • Intersil's Proprietary Enhanced Active Pulse Positioning (EAPP) Modulation Scheme (Patented)
  • Variable Frequency Control During Load Transients to Reduce Beat Frequency Oscillation
  • Linear Control with Evenly Distributed PWM Pulses for Better Phase Current Balance During Load Transients
  • Voltage Feed-Forward and Adjustable Ramp Options
  • High Frequency and PSI Compensation Options
  • Dual Outputs
  • Output 1 (VR0): 1 to 6-Phase for Core or Memory (Coupled Inductor Compatible)
  • Output 2 (VR1): Single Phase for Graphics, System Agent, or Processor I/O
  • Differential Remote Voltage Sensing
  • ±0.5% Closed-loop System Accuracy Over Load, Line and Temperature
  • Phase Doubler Compatibility (NOT Phase Dropping via PWM Lines)
  • Proprietary Active Phase Adding and Dropping with Diode Emulation Scheme For Enhanced Light Load Efficiency
  • Programmable Slew Rate of Fast Dynamic VID with Dynamic VID Compensation (DVC) for VR0
  • Dynamic VID Compensation (DVS) for VR1 at No Droop
  • Droop and Diode Emulation Options
  • Programmable 1 or 2-Phase Operation in PSI1/2/3 Mode
  • Programmable Standard or Coupled-Inductor Operation
  • Precision Resistor or DCR Differential Current Sensing
  • Integrated Programmable Current Sense Resistors
  • Integrated Thermal Compensation
  • Accurate Load-Line (Droop) Programming
  • Accurate Channel-Current Balancing
  • Accurate Current Monitoring
  • Average Overcurrent Protection and Channel Current Limit With Internal Current Comparators
  • Precision Overcurrent Protection on IMON & IMONS Pins
  • Independent Oscillators, up to 1MHz Per Phase, for Cost, Efficiency, and Performance Optimization
  • Dual Thermal Monitoring and Thermal Compensation
  • Start-up Into Pre-Charged Load
  • Pb-Free (RoHS Compliant)

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active QFN Tube 43
Active QFN Reel 4000
Active QFN Reel 1000
Active QFN Tube 43
Active QFN Reel 4000

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL6366 Datasheet Datasheet PDF 1.82 MB
ISL6366 Data Short Short Form Datasheet PDF 162 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
PCN13063 - Alternate Manufacturing Site for Assembly of the Listed Intersil DFN/QFN Packaged Products Product Change Notice PDF 145 KB
PCN13060 - Test Site Change for the Listed Intersil Products Product Change Notice PDF 223 KB
PCN13024B - Alternate Manufacturing Site for Assembly of the Listed Intersil DFN/QFN Packaged Products - Canceled for select products Product Change Notice PDF 243 KB
PCN13024 - Alternate Manufacturing Site for Assembly of the Listed Intersil DFN/QFN Packaged Products - Advanced Semiconductor Engineering - Chung-Li, Taiwan (ASECL Product Change Notice PDF 183 KB
PCN13009 - Alternate Bond Wire Material and Manufacturing Facilities for Assembly of the Listed Intersil DFN/QFN Packaged Products - Advanced Semiconductor Engineering (ASECL) - Chung-Li (ASECL), Taiwan and STATS ChipPAC (SCM) - Kuala Lump Product Change Notice PDF 173 KB
ISL6366 VR1 iSim:PE Model Schematic SXSCH 314 KB
ISL6366 VR0 iSim:PE Model Schematic SXSCH 776 KB