ISL6265A Data Sheet May 11, 2009 FN6884.0 Multi-Output Controller with Integrated Features MOSFET Drivers for AMD SVI Capable Core Configuration Flexibility Mobile CPUs - Dual Plane, Single-Phase Controllers - Uniplane, Two-Phase Controller The ISL6265A is a multi-output controller with embedded gate drivers. A single-phase controller powers the Precision Voltage Regulators Northbridge (VDDNB) portion of the CPU. The two - 0.5% System Accuracy Over-temperature remaining controller channels can be configured for Voltage Positioning with Adjustable Load Line and Offset two-phase or individual single-phase outputs. For uniplane Internal Gate Drivers with 2A Driving Capability CPU applications, the ISL6265A is configured as a two-phase buck converter. This allows the controller to Differential Remote CPU Die Voltage Sensing interleave channels to effectively double the output voltage Core Differential Current Sensing: DCR or Resistor ripple frequency, and thereby reduce output voltage ripple Northbridge Lossless r Current Sensing DS(ON) amplitude with fewer components, lower component cost, reduced power dissipation, and smaller area. For dual-plane Serial VID Interface processors, the ISL6265A can be configured as independent - Two Wire Clock and Data Bus 2 single-phase controllers powering VDD0 and VDD1. - Supports High-Speed I C - 0.500V to 1.55V in 12.5mV Steps 3 The heart of the ISL6265A is the patented R Technology, - Supports PSI L Power-Saving Mode Intersils Robust Ripple Regulator modulator. Compared with 3 Core Outputs Feature Phase Shedding with PSI L the traditional buck regulator, the R Technology has a 3 faster transient response. This is due to the R modulator Adjustable Output-Voltage Offset commanding variable switching frequency during a load Digital Soft-Start of all Outputs transient. User Programmable Switching Frequency The Serial VID Interface (SVI) allows dynamic adjustment of Static and Dynamic Current Sharing (Uniplane Core) the Core and Northbridge output voltages independently and in combination from 0.500V to 1.55V. Core and Northbridge Overvoltage, Undervoltage, and Overcurrent Protection output voltages achieve a 0.5% system accuracy Pb-Free (RoHS compliant) over-temperature. Pinout A unity-gain differential amplifier is provided for remote CPU ISL6265A die sensing. This allows the voltage on the CPU die to be (48 LD 6X6 TQFN) accurately regulated per AMD mobile CPU specifications. TOP VIEW Core output current sensing is realized using lossless inductor DCR sensing. All outputs feature overcurrent, overvoltage and undervoltage protection. 48 47 46 45 44 43 42 41 40 39 38 37 Ordering Information 1 36 BOOT NB OFS/VFIXEN TEMP BOOT0 2 35 PGOOD PART NUMBER PART RANGE PACKAGE PKG. 3 34 UGATE0 (Note) MARKING (C) (Pb-Free) DWG. PWROK 4 33 PHASE0 SVD ISL6265AHRTZ 6265A HRTZ -10 to +100 48 Ld 6x6 TQFN L48.6x6 PGND0 5 32 SVC ISL6265AHRTZ-T* 6265A HRTZ -10 to +100 48 Ld 6x6 TQFN L48.6x6 6 49 31 LGATE0 ENABLE GND Tape and Reel PVCC 7 30 RBIAS BOTTOM 8 29 LGATE1 OCSET *Please refer to TB347 for details on reel specifications. PGND1 VDIFF0 9 28 NOTE: These Intersil Pb-free plastic packaged products employ PHASE1 10 27 special Pb-free material sets, molding compounds/die attach materials, FB0 and 100% matte tin plate plus anneal (e3 termination finish, which is 11 26 UGATE1 COMP0 RoHS compliant and compatible with both SnPb and Pb-free soldering BOOT1 12 25 VW0 operations). Intersil Pb-free products are MSL classified at Pb-free peak 13 14 15 16 17 18 19 20 21 22 23 24 reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020 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. Copyright Intersil Americas Inc. 2009. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ISP0 VIN ISN0 VCC VSEN0 FB NB RTN0 COMP NB RTN1 FSET NB VSEN1 VSEN NB VDIFF1 RTN NB FB1 OCSET NB COMP1 PGND NB VW1 LGATE NB PHASE NB ISP1 ISN1 UGATE NBISL6265A Function Block Diagram RTN NB COMP NB VSEN NB FB NB FSET NB PVCC I FSET NB VNB BOOT NB 1 3.0k FLT UGATE NB 1.5k SVC MOSFET PHASE NB NO DROOP DRIVER MODULATOR E/A SVD PSI L NB SHOOT-THRU LGATE NB I OFS PROTECTION PWROK VREF NB VREF NB DE MODE PGND NB VREF0 VIN VREF1 OFS/FIXEN PSI L PVCC VCC POWER-ON ENABLE RESET AND OCSET NB FLT SOFT-START PGOOD VNB LOGIC FAULT RTN1 OCSET V0 PROTECTION GND V1 RBIAS ISEN0 MODE ISEN1 VIN VW0 PVCC I VW0 COMP0 BOOT0 FB0 FLT E/A UGATE0 I OFS MOSFET PHASE0 DRIVER VDIFF0 VREF0 SHOOT-THRU LGATE0 V0 VIN PROTECTION VSEN0 1 DE MODE PGND0 RTN0 NO MODE DROOP ISEN0 MODULATOR PSI L ISP0 CORE CURRENT PVCC SENSE ISN0 FLT MODE CURRENT ISEN1 BALANCE BOOT1 ISP1 UGATE1 CURRENT NO DROOP SENSE ISN1 MOSFET PHASE1 DRIVER MODE V1 VSEN1 SHOOT-THRU LGATE1 1 VREF1 PROTECTION RTN1 DE MODE PGND1 E/A VDIFF1 I OFS PSI L I VW1 FB1 COMP1 VW1 FIGURE 1. SIMPLIFIED FUNCTION BLOCK DIAGRAM OF ISL6265A FN6884.0 2 May 11, 2009 SVI INTERFACE AND DAC 1.5kW