IR3564B IR3570B Dual Output Digital Multi-Phase Controller FEATURES DESCRIPTION Dual output 4+1 and 3+2 phase PWM The IR3564B/70B is a dual loop digital multi-phase buck Controllers controller designed for CPU voltage regulation and is fully compliant with AMD SVI1 & SVI2 Rev 1.06 and Intel Easiest layout and fewest pins in the industry VR12 Rev 1.5 PWM specification and VR12.5 Rev 1.3 Fully supports AMD SVI1 & SVI2 with dual PWM specification. OCP and Intel VR12 & VR12.5 The IR3564B/70B includes IRs Efficiency Shaping Complies with VR12.5 Rev 1.3 requirement Technology to deliver exceptional efficiency at minimum for SVID register 15h to have <200 Sec cost across the entire load range. IRs Dynamic Phase filter Control adds/drops active phases based upon load Overclocking & Gaming Mode current and can be configured to enter 1-phase operation Switching frequency from 200kHz to 2MHz and diode emulation mode automatically or by command. per phase IRs unique Adaptive Transient Algorithm (ATA), based IR Efficiency Shaping Features including on proprietary non-linear digital PWM algorithms, Dynamic Phase Control and Automatic Power minimizes output bulk capacitors and Multiple Time State Switching Programmable (MTP) storage saves pins and enables a IR Adaptive Transient Algorithm (ATA) on small package size. Device configuration and fault both loops minimizes output bulk capacitors parameters are easily defined using the IR Digital Power and system cost Design Center (DPDC) GUI and stored in on-chip MTP. Auto-Phase Detection with auto- compensation The IR3564B/70B provides extensive OVP, UVP, OCP and OTP fault protection and includes thermistor based Per-Loop Fault Protection: OVP, UVP, OCP, temperature sensing with VRHOT signal. OTP I2C/SMBus/PMBus system interface for The IR3564B/70B includes numerous features like telemetryof Temperature, Voltage, Current & register diagnostics for fast design cycles and platform Power for both loops differentiation, simplifying VRD design and enabling fastest time-to-market (TTM) with set-and-forget Multiple Time Programming (MTP) with methodology. integrated charge pump for easy custom configuration APPLICATIONS Compatible with IR ATL and 3.3V tri-state Drivers AMD SVI1 & SVI2, Intel VR12 & VR12.5 based +3.3V supply voltage -40C to 85C ambient systems operation Desktop & Notebook CPU VRs Pb-Free, Halogen Free, RoHS, 5x5mm, GPU & Memory VRs 40-pin, 0.4mm pitch QFN ORDERING INFORMATION Standard Pack Base Part Orderable Package Type Number Part Number Form Quantity 1 IR3564B IR3564BMxxyyTRP QFN 5 mm x 5 mm Tape and Reel 3000 1 IR3570B R3570BMxxyyTRP IR3564B IR3564BMTRPBF QFN 5 mm x 5 mm Tape and Reel 3000 IR3570B IR3570BMTRPBF IR3564B IR3564BMTYPBF QFN 5 mm x 5 mm Tray 4900 IR3570B IR3570BMTYPBF 1. Customer Specific Configuration File, where xx = Customer ID and yy = Configuration File (Codes assigned by IR Marketing). www.irf.com 2015 International Rectifier February 24, 2015 V1.1 1 IR3564B IR3570B Dual Output Digital Multi-Phase Controller ORDERING INFORMATION IR3564BM IR3570BM P/PBF Lead Free TR Tape & Reel / TY - Tray yy Configuration File ID xx Customer ID Package Type (QFN) Figure 1: IR3564B/70B Pin Diagram Enlarged www.irf.com 2015 International Rectifier February 24, 2015 V1.1 2