Infineon Technologies IR35215MTRPBF Multiphase Buck Controller

Infineon Technologies IR35215MTRPBF Multiphase Buck Controller is an 8-phase dual loop voltage regulator designed for CPU voltage regulation. This buck controller utilizes efficiency-shaping technology to deliver exceptional efficiency at minimum cost across the entire load range. The IR35215MTRPBF controller offers dynamic phase control that adds/drops phases based on load current. This buck controller also provides a digitally programmable load line, eliminating the need for any external load line setting component. The IR35215MTRPBF controller features programmable one or 2-phase operation, digitally programmable load line, Adaptive Transient Algorithm (ATA) on loops, and auto-phase detection. This buck controller provides extensive OVP, UVP, OCP, OTP, and CFP fault protection. Typical applications include Intel® VR13, VR12.5, VR12, and IMVP8-based systems, servers, high-end desktop CPU VRs, and memory VR.

Features

Low quiescent power output PWM controller with dual loops and flexible phase allocation
Intel® VR13 rev1.1, VR12.5 rev1.5, VR12 rev1.7, IMVP8 rev1.2, and memory VR modes
200kHz to 2MHz per phase switching frequency
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
Infineon Adaptive Transient Algorithm (ATA) on both loops minimizes output bulk capacitors and system cost
Auto-phase detection with PID coefficient auto-scaling

OVP, UVP, OCP, OTP, CFP, cycle-by-cycle current limit fault protections
I²C/SMBus/PMBus system interface for reporting 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 3.3V tri-state drivers
3.3V supply voltage
-40°C to 85°C ambient operation
Pb-free and RoHS-compliant
5mm x 5mm 40-pin, 0.4mm pitch QFN