DATA SHORT To request the full datasheet, please visit www.intersil.com/products/isl6367h ISL6367H FN7917 Rev 0.00 Green Hybrid Digital Dual 6-Phase + 1-Phase PWM Controller for 2 August 28, 2012 VR12.5/VR12/IMVP7 Applications With SMBus/PMBus/I C The ISL6367H is a Hybrid Digital dual PWM controller and is Features designed to be compliant to Intel VR12.5/VR12/IMVP7 Intel VR12.5/VR12/IMVP7 compliant specifications. Its 6-phase PWMs control the microprocessor core or memory voltage regulator, while its single-phase PWM - SerialVID with programmable IMAX, TMAX, BOOT, controls the peripheral voltage regulator for graphics, system ADDRESS OFFSET registers agent, or processor I/O. It includes programmable functions Intersils Proprietary Green Hybrid Digital Enhanced Active and telemetries for easy use, high system flexibility and Pulse Positioning (EAPP) Modulation Scheme (Patented) 2 overclocking applications using SMBus, PMBus, or I C 2 - SMBus/PMBus/I C interface with SVID conflict free interface, which is designed to be conflict free with CPUs SVID - NVM and firmware free for low cost and easy use bus. This hybrid digital approach eliminates the need for NVM and Firmware often seen in a full digital solution and - Auto phase shedding option for green environment in significantly reduces design complexity, inventory and VR12.5 mode manufacturing costs. - Variable frequency control during load transients to reduce beat frequency oscillation The ISL6367H utilizes Intersils proprietary Enhanced Active Pulse - Linear control with evenly distributed PWM pulses for Positioning (EAPP) modulation scheme to achieve the extremely better phase current balance during load transients fast transient response with fewer output capacitors. The ISL6367H 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 Dual outputs power mode (PSI2,3), it operates in single phase with diode - Output 1 (VR0): 1 to 6-phase for core or memory (phase emulation option. In low power modes, the magnetic core and doubler compatible) switching losses are significantly reduced, yielding high - Output 2 (VR1): Single phase for graphics, system agent, efficiency at light load. After the PSI signal is de-asserted, the or processor I/O in VR12 mode dropped phase(s) are added back to sustain heavy load transient response and efficiency. In addition, the ISL6367H - 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 dynamic position versus load current (droop). The ISL6367H senses the VID compensation (DVC) for VR0 output current continuously by measuring the voltage across a Dynamic VID compensation (DVS) for VR1 at no droop dedicated current sense resistor or the DCR of the output 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 Precision resistor or DCR differential current sensing control. Current sensing circuits also provide the needed signals - Integrated programmable current sense resistors for channel-current balancing, average overcurrent protection and - Accurate load-line (droop) programming individual phase current limiting. The TM and TMS pins sense an - Accurate current monitoring and channel-current NTC thermistors temperature, which is internally digitized for balancing thermal monitoring and for integrated thermal compensation of the current sense elements of the respective regulator. Average overcurrent protection and channel current limit with internal current comparators The ISL6367H features remote voltage sensing and completely eliminates any potential difference between remote and local Precision overcurrent protection on IMON & IMONS pins grounds. This improves regulation and protection accuracy. The Independent oscillators, up to 2MHz per phase, for cost, threshold-sensitive enable input is available to accurately efficiency, and performance optimization coordinate the start-up of the ISL6367H with other voltage rails. Dual thermal monitoring and integrated compensation Start-up into pre-charged load Pb-free (RoHS compliant) FN7917 Rev 0.00 Page 1 of 2 August 28, 2012ISL6367H 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 FN7917 Rev 0.00 Page 2 of 2 August 28, 2012