The ISL6367H is a Hybrid Digital dual PWM controller and is designed to be compliant to Intel VR12. 5/VR12/IMVP7 specifications. 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. It includes programmable functions and telemetries for easy use, high system flexibility and overclocking applications using SMBus, PMBus, or I2C interface, which is designed to be conflict free with CPU’s SVID bus. This hybrid digital approach eliminates the need for NVM and Firmware often seen in a full digital solution and significantly reduces design complexity, inventory and manufacturing costs. The ISL6367H utilizes Intersil's proprietary Enhanced Active Pulse Positioning (EAPP) modulation scheme to achieve the extremely fast transient response with fewer output capacitors. The ISL6367H 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. In addition, the ISL6367H features auto-phase shedding to optimize the efficiency from light to full load for Green Environment without sacrificing the transient performance. Today’s microprocessors require a tightly regulated output voltage position versus load current (droop). The ISL6367H 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 the precision voltage drop across the feedback resistor for droop control. Current sensing circuits also provide the needed signals 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 ISL6367H 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 ISL6367H with other voltage rails.

Features

  • Intel VR12.5/VR12/IMVP7 compliant
  • SerialVID with programmable IMAX, TMAX, BOOT, ADDRESS OFFSET registers
  • Intersil's Proprietary Green Hybrid Digital Enhanced Active Pulse Positioning (EAPP) Modulation Scheme (Patented)
  • SMBus/PMBus/I2C interface with SVID conflict free
  • NVM and firmware free for low cost and easy use
  • Auto phase shedding option for green environment in VR12.5 mode
  • 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 ramp adjustable options
  • High frequency and PSI compensation options
  • Proprietary active phase adding and dropping with diode emulation scheme for enhanced light load efficiency
  • Dual outputs
  • Output 1 (VR0): 1 to 6-phase for core or memory (phase doubler compatible)
  • Output 2 (VR1): Single phase for graphics, system agent, or processor I/O in VR12 mode
  • Differential remote voltage sensing
  • ±0.5% closed-loop system accuracy over load, line and temperature
  • Programmable 1 or 2-phase operation in PSI1 mode
  • 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
  • Precision resistor or DCR differential current sensing
  • Integrated programmable current sense resistors
  • Accurate load-line (droop) programming
  • Accurate current monitoring and channel-current balancing
  • Average overcurrent protection and channel current limit with internal current comparators
  • Precision overcurrent protection on IMON & IMONS pins
  • Independent oscillators, up to 2MHz per phase, for cost, efficiency, and performance optimization
  • Dual thermal monitoring and integrated compensation
  • Start-up into pre-charged load
  • Pb-free (RoHS compliant)

Product Options

Orderable Part ID Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active QFN Tube 430
Availability
Active QFN Reel 4000
Availability
Active QFN Tube 430
Availability
Active QFN Reel 4000
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL6367H Datasheet Datasheet PDF 2.17 MB
ISL6367H Data Short Short Form Datasheet PDF 165 KB
Application Notes & White Papers
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
PCNs & PDNs
PCN13060 - Test Site Change for the Listed Intersil Products Product Change Notice PDF 223 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

Software / Tools

Title Type Description Company
iSim Design & Simulation Tool (Discontinued) Simulator iSim is an easy-to-use, interactive power management and op amp design tool that allows you to quickly select supporting components, build your schematic and validate your design. Renesas