ISL6263ACRZ Renesas

DATASHEET ISL6263A FN9284 Rev.3.00 5-Bit VID Single-Phase Voltage Regulator with Power Monitor for IMVP-6+ Santa Jul 8, 2010 Rosa GPU Core The ISL6263A IC is a Single-Phase Synchronous-Buck Features PWM voltage regulator featuring Intersils Robust Ripple Precision Single-phase Core Voltage Regulator 3 Regulator (R ) Technology. The ISL6263A is an - 0.5% System Accuracy 0C to +100C implementation of the Intel Mobile Voltage Positioning - Differential Remote GPU Die Voltage Sensing (IMVP) protocol for GPU Render Engine core power. - Differential Droop Voltage Sensing Integrated power monitor, droop amplifier, MOSFET drivers, and bootstrap diode result in smaller implementation area and Real-time GPU Power Monitor Output lower component cost. Applications Up to 25A 3 Intersils R Technology combines the best features of Input Voltage Range: +5.0V to +25.0V both fixed-frequency PWM and hysteretic PWM, delivering Programmable PWM Frequency: 200kHz to 500kHz excellent light-load efficiency and superior load transient Pre-biased Output Start-up Capability response by commanding variable switching frequency during the transitory event. For maximum conversion 5-bit Voltage Identification Input (VID) efficiency, the ISL6263A automatically enters diode - 1.28750 to 0.41200V emulation mode (DEM) should the inductor current attempt -25.75mV Steps to flow negative. DEM is highly configurable and easy to - Sequential or Non-sequential VID Change On-the-fly setup. A PWM filter can be enabled that prevents the Configurable PWM Modes switching frequency from entering the audible spectrum as a - Forced Continuous Conduction Mode result of extremely light load while in DEM. - Automatic Entry and Exit of Diode Emulation Mode The Render core voltage can be dynamically programmed - Selectable Audible Frequency PWM Filter from 0.41200V to 1.28750V by the five VID input pins Integrated MOSFET Drivers and Bootstrap Diode without requiring sequential stepping of the VID states. The ISL6263A requires only one capacitor for both the soft-start Choice of Current Sensing Schemes slew-rate and the dynamic VID slew-rate by internally - Lossless inductor DCR Current Sensing connecting the SOFT pin to the appropriate current source. - Precision Resistive Current Sensing Processor socket Kelvin sensing is accomplished with an Overvoltage, Undervoltage, and Overcurrent Protection integrated unity-gain true differential amplifier. Pb-free (RoHS compliant) Pinout 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 FB 6 19 PHASE VDIFF 7 18 UGATE VSEN 8 17 BOOT 910 11 12 13 14 15 16 FN9284 Rev.3.00 Page 1 of 20 Jul 8, 2010 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 Rev.3.00 Page 2 of 20 Jul 8, 2010