IR35204 3+1 Dual Output Digital Multi-Phase Controller FEATURES DESCRIPTION Ultra Low Quiescent Power Dual output 3+1 phase The IR35204 is a dual-loop digital multi-phase PWM Controller buck controller designed for CPU voltage regulation, and is fully compliant with Intel , VR12 Intel VR12 Rev 1.7, VR12.5 Rev 1.5, IMVP8 Rev 1.2, 2 Rev 1.7, VR12.5 Rev 1.5, IMVP8 Rev 1.2, and AMD SVID2, and Memory VR modes AMD SVI2 REV 1.06 specifications. Switching frequency from 194KHz to 2MHz per phase in 56 steps The IR35204 includes IRs Efficiency Shaping Technology to deliver exceptional efficiency at IR Efficiency Shaping Features including Dynamic Phase Control and Automatic Power State Switching minimum cost across the entire load range. IRs Dynamic Phase Control adds/drops phases based Programmable 1-phase or 2-phase operation for Light upon load current. The IR35204 can be configured Loads and Active Diode Emulation for very Light to enter 1 or 2-phase PS1 operation and active Loads diode emulation mode automatically or by IR Adaptive Transient Algorithm (ATA) on both loops command. minimizes output bulk capacitors and system cost IRs unique Adaptive Transient Algorithm (ATA), Auto-Phase Detection with PID Coefficient auto- based on proprietary non-linear digital PWM scaling algorithms, minimizes output bulk capacitors. Fault Protection: OVP, UVP, OCP, OTP, CAT FLT IR35204 has 127 possible address values for both I2C/SMBus/PMBus system interface for reporting of Temperature, Voltage, Current & Power telemetry for the PMBus and I2C bus interfaces. The device both loops configuration can be easily defined using the IR PowIRCenter GUI, and is stored in the on-chip Multiple Time Programming (MTP) with integrated Non-Volatile Memory (NVM). This reduces external charge pump for easy non-volatile programming components and minimizes the package size. Compatible with 3.3V tri-state drivers o o The IR35204 provides extensive OVP, UVP, OCP, +3.3V supply voltage -40 C to 85 C ambient o o OTP & CAT FLT fault protection, and includes operation -40 C to 125 C junction thermistor based temperature sensing or per Pb-Free, RoHS, 5x5mm 40-pin, 0.4mm pitch QFN phase temperature reporting when using the IR powIRstage. The controller is designed to work APPLICATIONS with either Rdson current sense PowIRstages or with DCR current sense. Intel VR12, VR12.5 and IMVP8 (overclocking only), AMD SVI2 based systems The IR35204 also includes numerous VR design Servers and High End Desktop CPU VRs simplifying and differentiating features, like register diagnostics, which enable fast time-to-market. High Performance Graphics Processors, Memory VR ORDERING INFORMATION Standard Pack Base Part Orderable Package Type Number Part Number Form Quantity 1 IR35204 40-pin, QFN 5 mm x 5 mm Tape and Reel 3000 IR35204MxxyyTRP IR35204 40-pin, QFN 5 mm x 5 mm Tape and Reel 3000 IR35204MTRPBF IR35204 40-pin, QFN 5 mm x 5 mm Tray 4900 IR35204MTYPBF Notes: 1. Customer Specific Configuration File, where xx = Customer ID and yy = Configuration File (Codes assigned by IR Marketing). 2. IR35204 is not intended for application where ultra low power PS4 shutdown functionality is required. 1 www.irf.com 2016 International Rectifier February 8, 2016 V1.6IR35204 3+1 Dual Output Digital Multi-Phase Controller ORDERING INFORMATION IR35204M P/PBF Lead Free TR Tape & Reel / TY - Tray yy Configuration File ID xx Customer ID Package Type (QFN) 40 39 38 37 36 35 34 33 32 31 RCSM 1 30 RCSM L2 2 VRDY2 29 VCC 3 VSEN VSEN L2 28 4 VRTN 27 VRTN L2 IR35204 5 PWM1 L2 I IN 26 40 Pin 5x5 QFN 6 25 TSEN1 PWM3 Top View 7 CFILT 24 PWM2 8 VRDY1 23 PWM1 9 EN L2/CAT FLT/PWROK 22 TSEN2/VAUXSEN 41 GN D 10 VINSEN 21 PIN AL ERT 20 11 12 13 14 15 16 17 18 19 Figure 1: IR35204 Pin Diagram 2 www.irf.com 2016 International Rectifier February 8, 2016 V1.6 SV ADDR/ RCSP VDDIO SV AL ERT / IRTN1 SVT SV CLK ISEN1 IRTN2 SV DIO ISEN2 VRHOT ICRIT IRTN3 EN ISEN3 ADDR PROT SM AL ERT IRTN1 L2 ISEN1 L2 SM DIO RCSP L2 SM CLK