IR3565A Dual Output Digital Multi-Phase Controller FEATURES DESCRIPTION Dual output 4+2 phase PWM Controller Easiest layout and fewest pins in the industry Fully supports AMD® SVI1 & SVI2 with dual OCP and Intel® VR12 & VR12.5 Overclocking & Gaming Mode Switching frequency from 200kHz to 2MHz per phase IR Efficiency Shaping Features including Dynamic Phase Control and Automatic Power State Switching Programmable 1-phase or 2-phase operation for Light Loads and Active Diode Emulation for Very Light Loads IR Adaptive Transient Algorithm (ATA) on both loops minimizes output bulk capacitors and system cost Auto-Phase Detection with auto-compensation Per-Loop Fault Protection: OVP, UVP, OCP, OTP, CFP I2C/SMBus/PMBus system interface for telemetry of Temperature, Voltage, Current & Power for both loops Multiple Time Programming (MTP) with integrated charge pump for easy custom configuration The IR3565A is a dual-loop digital multi-phase buck controller designed for CPU voltage regulation and is fully compliant with © AMD® SVI1 & SVI2 and Intel VR12 & VR12.5 specifications. The IR3565A includes IR’s Efficiency Shaping Technology to deliver exceptional efficiency at minimum cost across the entire load range. IR Variable Gate Drive optimizes the MOSFET gate drive voltage based on real-time load current. IR’s Dynamic Phase Control adds/drops active phases based upon load current and can be configured to enter 1-phase operation and diode emulation mode automatically or by command. IR’s unique Adaptive Transient Algorithm (ATA), based on proprietary non-linear digital PWM algorithms, minimizes output bulk capacitors and Multiple Time Programmable (MTP) storage saves pins and enables a small package size. Device configuration and fault parameters are easily defined using the IR Digital Power Design Center (DPDC) GUI and stored in on-chip MTP. The IR3565A provides extensive OVP, UVP, OCP and OTP fault protection and includes thermistor based temperature sensing with VRHOT signal. The IR3565A includes numerous features like register diagnostics for fast design cycles and platform differentiation, simplifying VRD design and enabling fastest time-to-market (TTM) with “set-and-forget” methodology. Compatible with IR ATL and 3.3V tri-state Drivers +3.3V supply voltage; -20°C to 85°C ambient operation APPLICATIONS AMD® SVI1 & SVI2, Intel® VR12 & VR12.5 based systems Pb-Free, RoHS, 6x6mm, 48-pin, 0.4mm pitch QFN Desktop & Notebook CPU VRs High Performance Graphics Processors BASIC APPLICATION Power Stage 6 VOUT2 ISEN2_L2 IRTN2_L2 Figure 1: IR3565A Basic Application Circuit 1 August 9, 2012 | FINAL | Product Brief | V2.04 IRTN2 ISEN2 IRTN3 ISEN3 IRTN4 ISEN4 IRTN2_L2 ISEN2_L2 IRTN1_L2 ISEN1_L2 43 42 41 40 39 38 37 36 RCSP_L2 RCSM 2 35 RCSM_L2 3 34 VCC CFP 4 33 VSEN_L2 VSEN 5 PWM2_L2 8 29 PWM4 9 28 10 27 PWM2 11 26 PWM1 25 VGD/TSEN2/ VAUXSEN 7 TSEN1 V18A VINSEN VRTN_L2 PWM1_L2 30 6 PWRGD/ VRDY1 PWROK/EN_L2/ INMODE 32 IR3565A 48 Pin 6x6 QFN Top View 31 VRTN RRES 49 GND 12 13 14 15 16 17 18 19 20 21 22 23 24 NC 3.3V Power Stage 5 44 SM_CLK PWM1_L2 SVT/ALERT# ISEN1_L2 IRTN1_L2 VCC PWM2_L2 VOUT1 45 SM_DIO SVD SVD SVT/ALERT# Power Stage 4 46 SM_ALERT SVC SVC PWM4 ISEN4 IRTN4 47 EN ENABLE 48 VRDY2 1 ADDR_PRO T ENABLE ... RCSP VRHOT_ICRIT VR_HOT# Power Stage 1 ISEN1 VR_RDY_L2 ISEN1 IRTN1 VR_HOT# IRTN1 VR_RDY_L2 NC VR_RDY_L1 PWM1 VIDDIO/ SV_ADDR SVT/ SV_ALERT SV_CLK/ VIDSEL1 SV_DIO/ VIDSEL0 IR3565A VR_RDY_L1 PIN DIAGRAM 12V PWM3 Figure 2: IR3565A Package Top View IR3565A Dual Output Digital Multi-Phase Controller ORDERING INFORMATION IR3565AM P/PBF – Lead Free TR – Tape & Reel / TY - Tray yy – Configuration File ID Package Packing Qty QFN 3000 IR3565AMTRPBF QFN 3000 IR3565AMxxyyTRP IRTN1 ISEN1 IRTN2 ISEN2 IRTN3 ISEN3 IRTN4 ISEN4 IRTN2_L2 ISEN2_L2 IRTN1_L2 ISEN1_L2 Package Type (QFN) 48 47 46 45 44 43 42 41 40 39 38 37 RCSP 1 36 RCSP_L2 RCSM 2 35 RCSM_L2 VRDY2 3 34 VCC CFP 4 33 VSEN_L2 VSEN 5 32 VRTN_L2 31 PWM1_L2 30 PWM2_L2 IR3565A 48 Pin 6x6 QFN Top View VRTN 6 RRES 7 TSEN1 8 29 PWM4 V18A 9 28 PWM3 10 27 PWM2 26 PWM1 25 VGD/TSEN2/ VAUXSEN 49 GND 18 19 20 21 22 23 24 NC 17 SM_CLK 16 SM_DIO 15 SM_ALERT 14 EN NC 13 ADDR_PRO T 12 VRHOT_ICRIT VINSEN 11 VIDDIO/ SV_ADDR SVT/ SV_ALERT SV_CLK/ VIDSEL1 SV_DIO/ VIDSEL0 PWRGD/ VRDY1 PWROK/EN_L2/ INMODE Programming Default 1 Customer Configuration Notes: 1. Customer Specific Configuration File, where xx = Customer ID and yy = Configuration File (Codes assigned by IR Marketing). xx – Customer ID Figure 3: IR3565A Pin Diagram Enlarged 2 Part Number August 9, 2012 | FINAL | Product Brief | V2.04 Dual Output Digital Multi-Phase Controller IR3565A 5V V TYPICAL APPLICATION DIAGRAM 12V Boot Vcc RCSP R series Vdrv CHL8505 HiGate Switch V_CPU_L1 CCS RCS R series RCSM +3.3V PWM GND LoGate Boot Vcc CHL8505 HiGate Switch L O A D PWM1 ISEN1 IRTN1 VCC 5V V RTh IR3565A 12V Vdrv VSEN PWM GND VRTN LoGate RRES TSEN1 5V V PWM2 ISEN2 IRTN2 12V RTh 2 Boot Vcc Vdrv V18A PWM GND CHL8505 HiGate Switch LoGate PWM3 ISEN3 TSEN2 12V IRTN3 RTh 3 VINSEN VRDY1 R VIN _ 2 5V V R VIN _ 1 12V Boot Vcc VRDY2 Vdrv SVT/SV_ALERT SV_DIO SV_CLK V V EN PWROK/EN_L2/INMODE VDDIO 5V 12V Boot Vcc VDDIO/SV_ADDR Vdrv PWM GND Applicable circuit when pin is configured as VDDIO only CHL8505 HiGate Switch V_CPU_L2 L O A D LoGate PWM1_L2 5V V ISEN1_L2 IRTN1_L2 V SM_DIO SM_CLK V I2C Bus 12V RCSP_L2 R series Boot Vcc CCS RCS RTh LoGate ISEN4 IRTN4 VRHOT_CRIT# From System PWM GND PWM4 V V V CPU Serial Bus CHL8505 HiGate Switch Vdrv R series RCSM_L2 PWM2_L2 VSEN_L2 ISEN2_L2 IRTN2_L2 PWM GND CHL8505 HiGate Switch LoGate VRTN_L2 ADDR_PROT GND Figure 4: Dual-loop VR using IR3565A Controller and CHL8505 MOSFET Drivers in 4+2 Configuration 3 August 9, 2012 | FINAL | Product Brief | V2.04 Dual Output Digital Multi-Phase Controller IR3565A Data and specifications subject to change without notice. This product will be designed and qualified for the Consumer market. Qualification Standards can be found on IR’s Web site. IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 TAC Fax: (310) 252-7903 Visit us at www.irf.com for sales contact information. www.irf.com 4 August 9, 2012 | FINAL | Product Brief | V2.04