IR35 215 IR35215 dual output digital multi-phase controller 8-phase dual loop voltage regulator Features Low quiescent power output PWM controller with dual loops and flexible phase allocation Intel VR13 rev 1.1 , VR12.5 rev1.5, VR12 rev 1.7, IMVP8 rev 1.2 and memory VR modes Switching frequency from 200 kHz to 2 MHz per phase Infineon efficiency shaping features including dynamic phase control and automatic power state switching Programmable 1 or 2-phase operation for light loads and active diode emulation for very light loads Digitally programmable load line - no external components are needed to set the load line Infineon Adaptive Transient Algorithm (ATA) on both loops minimizes output bulk capacitors and system cost Auto-phase detection with PID coefficient auto-scaling Fault protection: OVP, UVP, OCP, OTP, CFP, cycle-by-cycle current limit I2C/SMBus/PMBus system interface for reporting of temperature, voltage, current and power telemetry for both loops Multiple Time Programming (MTP) with up to 27 writes for the USER section Compatible with industry standard 3.3 V tri-state drivers +3.3 V supply voltage -40C to 85C ambient operation Pb-Free, RoHS, 5x5 mm 40-pin, 0.4 mm pitch QFN Description The IR35215 is a dual loop, digital, multi-phase buck controller designed for CPU voltage regulation - it can support up to 8 phases and allows flexible phase assignment between the two loops. The IR35215 includes Infineons efficiency shaping technology to deliver exceptional efficiency at minimum cost across the entire load range. Infineons dynamic phase control adds/drops phases based upon load current. The IR35215 can be configured to enter 1 or 2-phase operation and active diode emulation mode automatically or by command. The IR35215 offers digitally programmable load line thereby eliminating the need for any external load line setting component. The controller is designed to work with integrated and DCR current sense power stages and provides accurate input and output current reporting. Infineons unique Adaptive Transient Algorithm (ATA), based on proprietary non-linear control algorithms provides excellent transient response with reduced output capacitance. The controller also supports programmable cycle-by-cycle current limit per phase for superior dynamic current limiting. The device configuration can be easily defined using the Infineon PowIRCenter GUI and is stored in the on-chip memory. The IR35215 provides extensive OVP, UVP, OCP, OTP and CFP fault protection. The controller requires the fewest possible external components and supports a clean interface with the power stages resulting in a simplified Bill Of Materials (BOM). Data Brief Please read the Important Notice and Warnings at the end of this document V 1.1 www.infineon.com page 1 of 4 2019-8-27 IR35215 dual output digital multi-phase controller 8-phase dual loop voltage regulator Potential applications Intel VR13, VR12.5, VR12 and IMVP8 based systems Servers and high end desktop CPU VRs Memory VR Product validation Qualified for industrial applications according to the relevant tests of JEDEC47/20/22 Product identification and ordering information Part number Package type Standard pack Marking form and quantity 1 IR35215 40-pin, QFN 5 mm x 5 mm Tape and reel 3000 IR35215MxxyyTRP IR35215 40-pin, QFN 5 mm x 5 mm Tape and reel 3000 IR35215MTRPBF IR35215 40-pin, QFN 5 mm x 5 mm Tray 4900 IR35215MTYPBF IR35215M P/PBF Lead Free TR Tape & Reel / TY Tray yy Configuration File ID xx Customer ID Package Type (QFN) 1 Customer specific configuration file, where xx = customer ID and yy = configeration file (codes assigned by Infineon marketing). Data Brief 2 of 4 V 1.1 2019-8-27