IR3541AMTRPBF Description

The IR3541AMTRPBF is a dual-loop, digital multi-phase buck controller that drives up to 5 phases. The IR3541AMTRPBF is fully Intel? VR12 and AMD? SVI compliant on both loops and provides a Vtt tracking function for DDR memory. The IR3541AMTRPBF includes the IR Efficiency Shaping Technology to deliver exceptional efficiency at minimum cost across the entire load range. IR Variable Gate Drive optimizes the MOSFET gate drive voltage as a function of real-time load current. IR Dynamic Phase Control adds/drops active phases based upon load current. The IR3541AMTRPBF can be configured to enter 1-phase operation and active diode emulation mode automatically or by command.

IR3541AMTRPBF Features

5-phase dual output PWM Controller

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

Overclocking & Gaming Mode with Vmax setting

IR3541AMTRPBF Applications

Intel ? VR12 & AMD? SVI-based systems

DDR Memory with Vtt tracking

Overclocked & Gaming platforms