DATA SHORT To request the full datasheet, please visit www.intersil.com/products/isl6367 ISL6367 FN7884 Rev 0.00 Green Hybrid Digital Dual 6+1 Phase PWM Controller for VR12/IMVP7 April 5, 2012 Applications With SMBus/PMBus/I2C and AUTO Phase The ISL6367 is a Hybrid Digital dual PWM controller and is Features designed to be compliant to Intel VR12/IMVP7 Intel VR12/IMVP7 Compliant specifications. Its 6-phase PWMs control the microprocessor core or memory voltage regulator, while its single-phase - SerialVID with Programmable IMAX, TMAX, BOOT, PWM controls the peripheral voltage regulator for graphics, ADDRESS OFFSET Registers system agent, or processor I/O. It includes programmable Intersils Proprietary Green Hybrid Digital Enhanced Active functions and telemetries for easy use, high system flexibility Pulse Positioning (EAPP) Modulation Scheme (Patented) 2 and overclocking applications using SMBus, PMBus, or I C 2 - SMBus/PMBus/I C Interface with SVID Conflict Free (Modified) interface, which is designed to be conflict free with - NVM and Firmware Free for Low Cost and Easy Use CPUs SVID bus. This hybrid digital approach eliminates the need of NVM and Firmware often seen in a full digital - Auto Phase Shedding Option for Green Environment with solution and significantly reduces design complexity, Boot-refresh Function Option inventory and manufacture cost. - Variable Frequency Control During Load Transients to Reduce Beat Frequency Oscillation The ISL6367 utilizes Intersils proprietary Enhanced Active Pulse Positioning (EAPP) modulation scheme to achieve the extremely - Linear Control with Evenly Distributed PWM Pulses for fast transient response with fewer output capacitors. The Better Phase Current Balance During Load Transients ISL6367 accurately monitors the load current via the IMON pin - Voltage Feed-forward and Ramp Adjustable Options and reports this information via the IOUT register to the - High Frequency and PSI Compensation Options microprocessor, which sends a PSI signal to the controller at - Proprietary Active Phase Adding and Dropping with Diode low power mode via SVID bus. The controller enters 1- or Emulation Scheme For Enhanced Light Load Efficiency 2-phase operation in low power mode (PSI1) in the ultra low power mode (PSI2,3), it operates in single phase with diode Dual Outputs emulation option. In low power modes, the magnetic core and - Output 1 (VR0): 1 to 6-Phase for Core or Memory (Coupled switching losses are significantly reduced, yielding high Inductor and Phase Doubler, ISL6617/11A Compatible) efficiency at light load. After the PSI signal is de-asserted, the - Output 2 (VR1): Single Phase for Graphics, System Agent, dropped phase(s) are added back to sustain heavy load or Processor I/O transient response and efficiency. In addition, the ISL6367 - Differential Remote Voltage Sensing features auto-phase shedding to optimize the efficiency from - 0.5% Closed-loop System Accuracy Over Load, Line and light to full load for Green Environment without sacrificing the Temperature transient performance. Programmable 1 or 2-Phase Operation in PSI1 Mode Todays microprocessors require a tightly regulated output voltage Programmable Slew Rate of Fast Dynamic VID with position versus load current (droop). The ISL6367 senses the Dynamic VID Compensation (DVC) for VR0 output current continuously by measuring the voltage across a dedicated current sense resistor or the DCR of the output Dynamic VID Compensation (DVC) for VR1 at No Droop inductor. The sensed current flows out of the FB pin to develop the Droop and Diode Emulation Options precision voltage drop across the feedback resistor for droop Programmable Standard or Coupled-Inductor Operation control. Current sensing circuits also provide the needed signals for channel-current balancing, average overcurrent protection and Precision Resistor or DCR Differential Current Sensing individual phase current limiting. The TM and TMS pins sense an - Integrated Programmable Current Sense Resistors NTC thermistors temperature, which is internally digitized for - Accurate Load-Line (Droop) Programming thermal monitoring and for integrated thermal compensation of - Accurate Current Monitoring and Current Balancing the current sense elements of the respective regulator. True Input Current Sensing For Catastrophic Failure Protection The ISL6367 can sense input current to provide a true Average Overcurrent Protection and Channel Current Limit Catastrophic Failure Protection (CFP) output. It also features With Internal Current Comparators remote voltage sensing and completely eliminates any potential difference between remote and local grounds. This improves Precision Overcurrent Protection on IMON & IMONS Pins regulation and protection accuracy. The threshold-sensitive Independent Oscillators, up to 2MHz Per Phase, for Cost, enable input is available to accurately coordinate the start-up of Efficiency, and Performance Optimization the ISL6367 with other voltage rails. Dual Thermal Monitoring and Integrated Compensation Start-up Into Pre-Charged Load Pb-Free (RoHS Compliant) FN7884 Rev 0.00 Page 1 of 2 April 5, 2012ISL6367 Copyright Intersil Americas LLC 2012. All Rights Reserved. All trademarks and registered trademarks are the property of their respective owners. For additional products, see www.intersil.com/en/products.html Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted in the quality certifications found at www.intersil.com/en/support/qualandreliability.html Intersil products are sold by description only. Intersil may modify the circuit design and/or specifications of products at any time without notice, provided that such modification does not, in Intersil s sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned to verify that datasheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com FN7884 Rev 0.00 Page 2 of 2 April 5, 2012