IR3541MGE02TRP Description

The IR3541MGE02TRP is Digital Multi-Phase Buck Controller that drives up to 5 phases. It is fully Intel? VR12 and AMD? SVI compliant on both loops and provides a Vtt tracking function for DDR memory.

IR3541MGE02TRP Features

• Phases are flexibly assigned between Loops 1 & 2

• Intel? VR12, AMD? 400kHz & 3.4MHz SVI and Memory modes

• Dual OCP support for I-spike enhanced AMD CPUs

• SMB_Alert Pin for Servers

• PMBus Address pin or Variable Gate Drive (IR3541/CHL8325A)

• 2nd Temperature Sense for VR12 Desktop (CHL8325B)

• Overclocking & Gaming Mode with Vmax setting

• Switching frequency from 200kHz to 1.2MHz per phase

• IR Efficiency Shaping Features including Variable Gate Drive (IR3541/CHL8325A only) and Dynamic

• Phase Control

• Programmable 1-phase or 2-phase for Light Loads and Active Diode Emulation for Very Light Loads

• IR Adaptive Transient Algorithm (ATA) on both loops minimizes output bulk capacitors and system cost

• Auto-Phase Detection with auto-compensation

• Per-Loop Fault Protection: OVP, UVP, OCP, OTP, CFP

• I²C/SMBus/PMBus system interface for telemetry of Temperature, Voltage, Current & Power for both loops

• Non-Volatile Memory (NVM) for custom configuration

• Compatible with IR ATL and 3.3V Tri-state Drivers

• +3.3V supply voltage; -20oC to 85oC ambient operation

• Pb-Free, RoHS, 6x6 40-pin QFN, MSL2 package

IR3541MGE02TRP Applications

• Intel ? VR12 & AMD? SVI-based systems

• DDR Memory with Vtt tracking

• Overclocked & Gaming platforms