Dual Output Digital Multi-Phase Controller IR3565B FEATURES DESCRIPTION Dual output 4+2 phase PWM Controller The IR3565B is a dual-loop digital multi-phase buck controller designed for CPU voltage regulation and is fully Easiest layout and fewest pins in the industry compliant with AMD SVI1 & SVI2 and Intel VR12 & Fully supports AMD SVI1 & SVI2 with dual VR12.5 specifications. OCP and Intel VR12 & VR12.5 The IR3565B includes IRs Efficiency Shaping Complies with VR12.5 Rev 1.3 requirement Technology to deliver exceptional efficiency at minimum for SVID register 15h to have <200 Sec cost across the entire load range. IR Variable Gate Drive filter optimizes the MOSFET gate drive voltage based on real- time load current. IRs Dynamic Phase Control Overclocking & Gaming Mode adds/drops active phases based upon load current and Switching frequency from 200kHz to 2MHz can be configured to enter 1-phase operation and diode per phase emulation mode automatically or by command. IR Efficiency Shaping Features including Dynamic Phase Control and Automatic Power IRs unique Adaptive Transient Algorithm (ATA), based State Switching on proprietary non-linear digital PWM algorithms, minimizes output bulk capacitors and Multiple Time iR Adaptive Transient Algorithm (ATA) on Programmable (MTP) storage saves pins and enables a both loops minimizes output bulk capacitors small package size. Device configuration and fault and system cost parameters are easily defined using the IR Digital Power Auto-Phase Detection with auto- Design Center (DPDC) GUI and stored in on-chip MTP. compensation Per-Loop Fault Protection: OVP, UVP, OCP, The IR3565B provides extensive OVP, UVP, OCP and OTP, CFP OTP fault protection and includes thermistor based temperature sensing with VRHOT signal. I2C/SMBus/PMBus system interface for telemetry of Temperature, Voltage, Current & Power for The IR3565B includes numerous features like register both loops diagnostics for fast design cycles and platform differentiation, simplifying VRD design and enabling Multiple Time Programming (MTP) with fastest time-to-market (TTM) with set-and-forget integrated charge pump for easy custom methodology. configuration Compatible with IR ATL and 3.3V tri-state APPLICATIONS Drivers +3.3V supply voltage -40C to 85C ambient AMD SVI1 & SVI2, Intel VR12 & VR12.5 based operation systems Desktop & Notebook CPU VRs Pb-Free, RoHS, 6x6mm, 48-pin, 0.4mm pitch QFN High Performance Graphics Processors ORDERING INFORMATION Standard Pack Base Part Orderable Package Type Number Part Number Form Quantity 1 IR3565B QFN 6 mm x 6 mm Tape and Reel 3000 IR3565BMxxyyTRP IR3565B QFN 6 mm x 6 mm Tape and Reel 3000 IR3565BMTRPBF IR3565B QFN 6 mm x 6 mm Tray 4900 IR3565BMTYPBF Notes 1: Customer Specific Configuration File, where xx = Customer ID and yy = Configuration File (Codes assigned by IR Marketing). 1 www.irf.com 2013 International Rectifier August 1, 2013 V1.04 Dual Output Digital Multi-Phase Controller IR3565B ORDERING INFORMATION IR3565BM P/PBF Lead Free TR Tape & Reel / TY - Tray yy Configuration File ID xx Customer ID Package Type (QFN) 48 47 46 45 44 43 42 41 40 39 38 37 36 RCSP 1 RCSP L2 35 RCSM 2 RCSM L2 VRDY2 3 34 VCC CFP 4 33 VSEN L2 VSEN 5 32 VRTN L2 IR3565B VRTN 6 31 PWM1 L2 48 Pin 6x6 QFN RRES 7 30 PWM2 L2 Top View TSEN1 8 29 PWM4 PWM3 V18A 9 28 PWRGD/ 10 27 PWM2 VRDY1 PWROK/EN L2/ 11 26 PWM1 INMODE 49 GND VGD/TSEN2/ VINSEN 12 25 VAUXSEN 13 14 15 16 17 18 19 20 21 22 23 24 Figure 1: IR3565B Pin Diagram Enlarged 2 www.irf.com 2013 International Rectifier August 1, 2013 V1.04 NC IRTN1 VIDDIO/ ISEN1 SV ADDR SVT/ IRTN2 SV ALERT SV CLK/ ISEN2 VIDSEL1 SV DIO/ IRTN3 VIDSEL0 ISEN3 VRHOT ICRIT IRTN4 EN ADDR PRO ISEN4 T IRTN2 L2 SM ALERT ISEN2 L2 SM DIO IRTN1 L2 SM CLK ISEN1 L2 NC