Dual Output Digital Multi-Phase Controller IR3566B FEATURES DESCRIPTION Dual output 6+1 phase PWM Controller The IR3566B is a dual-loop digital multi-phase buck controller designed for CPU voltage regulation and is Fully supports AMD SVI1 & SVI2 with dual fully compliant with AMD SVI1 & SVI2 and Intel OCP and Intel VR12 & VR12.5 VR12 & VR12.5 specifications. Complies with VR12.5 Rev 1.3 requirement for SVID register 15h to have <200 Sec filter The IR3566B includes IRs Efficiency Shaping Technology to deliver exceptional efficiency at PVI and SVI GPU VR modes minimum cost across the entire load range. IR Variable Overclocking & Gaming Mode Gate Drive optimizes the MOSFET gate drive voltage based on real-time load current. IRs Dynamic Phase Switching frequency from 200kHz to 2MHz Control adds/drops active phases based upon load per phase current and can be configured to enter 1-phase IR Efficiency Shaping Features including operation and diode emulation mode automatically or Dynamic Phase Control and Automatic Power by command. State Switching IR Adaptive Transient Algorithm (ATA) on both IRs unique Adaptive Transient Algorithm (ATA), based loops minimizes output bulk capacitors and on proprietary non-linear digital PWM algorithms, system cost minimizes output bulk capacitors and Multiple Time Programmable (MTP) storage saves pins and enables Auto-Phase Detection with auto-compensation a small package size. Device configuration and fault Per-Loop Fault Protection: OVP, UVP, OCP, parameters are easily defined using the IR Digital OTP Power Design Center (DPDC) GUI and stored in on- I2C/SMBus/PMBus system interface for chip MTP. telemetry of Temperature, Voltage, Current & Power for both loops The IR3566B provides extensive OVP, UVP, OCP and OTP fault protection and includes thermistor based Multiple Time Programming (MTP) with temperature sensing with VRHOT signal. integrated charge pump for easy custom configuration The IR3566B includes numerous features like register Compatible with IR ATL and 3.3V tri-state diagnostics for fast design cycles and platform Drivers differentiation, simplifying VRD design and enabling fastest time-to-market (TTM) with set-and-forget +3.3V supply voltage -40C to 85C ambient operation methodology. Pb-Free, RoHS, 6x6mm, 48-pin, 0.4mm pitch QFN APPLICATIONS AMD SVI1 & SVI2, Intel VR12 & VR12.5 based systems Servers and High End Desktop CPU VRs High Performance Graphics Processor ORDERING INFORMATION Standard Pack Base Part Orderable Package Type Number Part Number Form Quantity 1 IR3566B QFN 6 mm x 6 mm Tape and Reel 3000 IR3566BMxxyyTRP IR3566B QFN 6 mm x 6 mm Tape and Reel 3000 IR3566BMTRPBF IR3566B QFN 6 mm x 6 mm Tray 4900 IR3566BMTYPBF Notes: 1. Customer Specific Configuration File, where xx = Customer ID and yy = Configuration File (Codes assigned by IR Marketing). www.irf.com 2013 International Rectifier August 1, 2013 V1.04 1 Dual Output Digital Multi-Phase Controller IR3566B ORDERING INFORMATION IR3566BM 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 1 36 ISEN1 L2 ISEN6 2 35 RCSP RCSP L2 34 RCSM 3 RCSM L2 33 VRDY2 4 VCC 5 32 VSEN VSEN L2 IR3566B 6 31 VRTN VRTN L2 48 Pin 6 x 6 QFN 7 30 RRES PWM1 L2 Top View 29 TSEN1 8 PWM6 28 V18A 9 PWM5 PWM4 10 27 VRDY1 11 26 EN L2/INMODE/PWROK PWM3 49 GND 12 25 VINSEN PWM2 13 14 15 16 17 18 19 20 21 22 23 24 Figure 1: IR3566B Pin Diagram Enlarged www.irf.com 2013 International Rectifier August 1, 2013 V1.04 2 IRTN6 SV ADDR/VDDIO SV ALERT /SVT IRTN1 SV CLK/ ISEN1 VIDSEL1 SV DIO/ IRTN2 VIDSEL0 ISEN2 VRHOT CRIT IRTN3 EN ISEN3 ADDR PROT IRTN4 SM ALERT SM DIO ISEN4 IRTN5 SM CLK VGD/TSEN2/ ISEN5 VAUXSEN PWM1 IRTN1 L2