Datasheet Product Brief Dual Output Digital Multi-Phase Controller IR3584 FEATURES DESCRIPTION Ultra Low Quiescent PowerDual output 4+1 phase The IR3584 is a dual-loop digital multi-phase buck PWM Controller controller designed for CPU voltage regulation, and is fully compliant with Intel VR12 and Intel VR12, VR12.5 & Memory VR modes compliant with VR12.5 Rev 1.3 PWM Overclocking & Gaming Modes specifications. PVI GPU VR mode The IR3584 includes IRs Efficiency Shaping Switching frequency from 194KHz to 2MHz per Technology to deliver exceptional efficiency at phase in 56 steps minimum cost across the entire load range. IRs IR Efficiency Shaping Features including Dynamic Dynamic Phase Control adds/drops phases based Phase Control and Automatic Power State Switching upon load current. The IR3584 can be configured to enter 1 or 2-phase operation and active diode Programmable 1-phase or 2-phase operation for emulation mode automatically or by command. Light Loads and Active Diode Emulation for Very Light Loads IRs unique Adaptive Transient Algorithm (ATA), IR Adaptive Transient Algorithm (ATA) on both loops based on proprietary non-linear digital PWM minimizes output bulk capacitors and system cost algorithms, minimizes output bulk capacitors. Auto-Phase Detection with PID Coefficient auto- IR3584 has 127 possible address values for both scaling the PMBus and I2C bus interfaces. The device Fault Protection: OVP, UVP, OCP, OTP, CAT FLT configuration can be easily defined using the IR I2C/SMBus/PMBus system interface for reporting of Digital Power Design Center (DPDC) GUI, and is Temperature, Voltage, Current & Power telemetry for stored in the on-chip Non-Volatile Memory (NVM). both loops This reduces external components and minimizes the package size. Multiple Time Programming (MTP) with integrated charge pump for easy non-volatile programming The IR3584 provides extensive OVP, UVP, OCP, Compatible with 3.3V tri-state drivers and IR ATL OTP & CAT FLT fault protection, and includes mode drivers thermistor based temperature sensing or per o o phase temperature reporting when using the IR +3.3V supply voltage -40 C to 85 C ambient operation powIRstage. The controller is designed to work with either Rdson current sense PowIRstages or Pb-Free, RoHS, 5x5mm 40-pin, 0.4mm pitch QFN with DCR current sense. APPLICATIONS The IR3584 also includes numerous VR design simplifying and differentiating features, like register Intel VR12 and VR12.5 based systems diagnostics, which enable fast time-to-market. Servers and High End Desktop CPU VRs High Performance Graphics Processors ORDERING INFORMATION Standard Pack Base Part Orderable Package Type Number Part Number Form Quantity 1 IR3584 40-pin, QFN 5 mm x 5 mm Tape and Reel 3000 IR3584MxxyyTRP IR3584 40-pin, QFN 5 mm x 5 mm Tape and Reel 3000 IR3584MTRPBF IR3584 40-pin, QFN 5 mm x 5 mm Tray 4900 IR3584MTYPBF Notes: 1. Customer Specific Configuration File, where xx = Customer ID and yy = Configuration File (Codes assigned by IR Marketing). www.irf.com 2014 International Rectifier April 11, 2014 V2.2 1 Datasheet Product Brief Dual Output Digital Multi-Phase Controller IR3584 ORDERING INFORMATION IR3584M P/PBF Lead Free TR Tape & Reel / TY - Tray yy Configuration File ID xx Customer ID Package Type (QFN) Figure 1: IR3584 Pin Diagram www.irf.com 2014 International Rectifier April 11, 2014 V2.2 2