ISL6263A Data Sheet July 8, 2010 FN9284.3 5-Bit VID Single-Phase Voltage Regulator Features with Power Monitor for IMVP-6+ Santa Precision Single-phase Core Voltage Regulator Rosa GPU Core - 0.5% System Accuracy 0C to +100C The ISL6263A IC is a Single-Phase Synchronous-Buck - Differential Remote GPU Die Voltage Sensing PWM voltage regulator featuring Intersils Robust Ripple - Differential Droop Voltage Sensing 3 Regulator (R ) Technology. The ISL6263A is an Real-time GPU Power Monitor Output implementation of the Intel Mobile Voltage Positioning Applications Up to 25A (IMVP) protocol for GPU Render Engine core power. Integrated power monitor, droop amplifier, MOSFET drivers, Input Voltage Range: +5.0V to +25.0V and bootstrap diode result in smaller implementation area and Programmable PWM Frequency: 200kHz to 500kHz lower component cost. Pre-biased Output Start-up Capability 3 Intersils R Technology combines the best features of 5-bit Voltage Identification Input (VID) both fixed-frequency PWM and hysteretic PWM, delivering - 1.28750 to 0.41200V excellent light-load efficiency and superior load transient - 25.75mV Steps response by commanding variable switching frequency - Sequential or Non-sequential VID Change On-the-fly during the transitory event. For maximum conversion efficiency, the ISL6263A automatically enters diode Configurable PWM Modes emulation mode (DEM) should the inductor current attempt - Forced Continuous Conduction Mode to flow negative. DEM is highly configurable and easy to - Automatic Entry and Exit of Diode Emulation Mode setup. A PWM filter can be enabled that prevents the - Selectable Audible Frequency PWM Filter switching frequency from entering the audible spectrum as a Integrated MOSFET Drivers and Bootstrap Diode result of extremely light load while in DEM. Choice of Current Sensing Schemes The Render core voltage can be dynamically programmed - Lossless inductor DCR Current Sensing from 0.41200V to 1.28750V by the five VID input pins - Precision Resistive Current Sensing without requiring sequential stepping of the VID states. The Overvoltage, Undervoltage, and Overcurrent Protection ISL6263A requires only one capacitor for both the soft-start slew-rate and the dynamic VID slew-rate by internally Pb-free (RoHS compliant) connecting the SOFT pin to the appropriate current source. Pinout Processor socket Kelvin sensing is accomplished with an integrated unity-gain true differential amplifier. ISL6263A (32 LD 5x5 QFN) TOP VIEW 32 31 30 29 28 27 26 25 RBIAS 1 24 VID1 SOFT 2 23 VID0 OCSET 3 22 PVCC VW 4 21 LGATE THERMAL PAD (BOTTOM) COMP 5 20 PGND PHASE FB 6 19 VDIFF 7 18 UGATE VSEN 8 17 BOOT 910 11 12 13 14 15 16 CAUTION: These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1 1-888-INTERSIL or 1-888-468-3774 Intersil (and design) is a registered trademark of Intersil Americas Inc. 3 Copyright Intersil Americas Inc. 2007, 2009, 2010. All Rights Reserved. R Technology is a trademark of Intersil Americas Inc. All other trademarks mentioned are the property of their respective owners. RTN FDE DROOP PGOOD DFB AF EN VO VR ON VSUM PMON VIN VID4 VID3 VSS VID3 VDD VID2 ISL6263A Ordering Information PART NUMBER PART TEMP RANGE PACKAGE PKG. (Notes 2, 3 MARKING (C) (Pb-Free) DWG. ISL6263ACRZ ISL6263 ACRZ -10 to +100 32 Ld 5x5 QFN L32.5x5 ISL6263ACRZ-T (Note 1) ISL6263 ACRZ -10 to +100 32 Ld 5x5 QFN Tape and Reel L32.5x5 ISL6263AIRZ ISL6263 AIRZ -40 to +100 32 Ld 5x5 QFN L32.5x5 ISL6263AIRZ-T (Note 1) ISL6263 AIRZ -40 to +100 32 Ld 5x5 QFN Tape and Reel L32.5x5 NOTES: 1. Please refer to TB347 for details on reel specifications. 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD- 020. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL6263A. For more information on MSL please see techbrief TB363. FN9284.3 2 July 8, 2010