Single Output Digital Multi-Phase Controller IR3580 FEATURES DESCRIPTION Ultra Low Quiescent Power 8-phase single output The IR3580 is a single-loop digital multi-phase buck PWM Controller controller that controls up to 8 phases. The IR3580 is fully compliant with Intel VR12 and compliant with Intel VR12 and VR12.5, & Memory VR modes VR12.5 Rev 1.3 PWM specifications. Overclocking & Gaming Modes The IR3580 includes IRs Efficiency Shaping PVI GPU VR mode Technology to deliver exceptional efficiency at Switching frequency from 194KHz to 2MHz per minimum cost across the entire load range. IR phase in 56 steps Variable Gate Drive optimizes the MOSFET gate IR Efficiency Shaping Features including Variable drive voltage based on real-time load current. IRs Gate Drive, Dynamic Phase Control and Dynamic Phase Control adds/drops phases based Automatic Power State Switching upon load current. The IR3580 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) minimizes based on proprietary non-linear digital PWM output bulk capacitors and system cost algorithms, minimizes output bulk capacitors. Auto-Phase Detection with PID Coefficient auto- scaling IR3580 has 127 possible address values for both 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 Digital Power Design Center (DPDC) GUI, and is of Temperature, Voltage, Current & Power stored in the on-chip Non-Volatile Memory (NVM). telemetry for both loops This reduces external components and minimizes Multiple Time Programming (MTP) with integrated the package size. charge pump for easy non-volatile programming The IR3580 provides extensive OVP, UVP, OCP, Compatible with 3.3V tri-state drivers and IR ATL OTP and CAT FLT fault protection and includes mode drivers thermistor based temperature sensing or per phase o o +3.3V supply voltage -40 C to 85 C ambient temperature reporting when using the IR operation powIRstage. The controller is designed to work with Pb-Free, RoHS, 6x6mm 48-pin, 0.4mm pitch QFN either Rdson current sense PowIRstages or with DCR current sense. APPLICATIONS The IR3580 also includes numerous VR design Intel VR12 and VR12.5 based systems simplifying and differentiating features, like register diagnostics, which enable fast time-to-market. Overclocked & Gaming platforms ORDERING INFORMATION Standard Pack Base Part Orderable Package Type Number Part Number Form Quantity 1 IR3580 48-pin QFN 6 mm x 6 mm Tape and Reel 3000 IR3580MxxyyTRP IR3580 48-pin QFN 6 mm x 6 mm Tape and Reel 3000 IR3580MTRPBF IR3580 48-pin QFN 6 mm x 6 mm Tray 4900 IR3580MTYPBF 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 September 17, 2014 V2.3 1 Single Output Digital Multi-Phase Controller IR3580 ORDERING INFORMATION IR3580M P/PBFLeadFree TRTape&Reel/TYTray yyConfigurationFileID xxCustomerID PackageType(QFN) Figure 1: IR3580 Pin Diagram www.irf.com 2014 International Rectifier September 17, 2014 V2.3 2