IR3541MTRPBF

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IR3541MTRPBF

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IC REG CTRLR DDR 2OUT 40QFN

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Specifications

Attribute Value
Package / Case Tape & Reel (TR),Cut Tape (CT)
Part Status Obsolete
Applications Controller, DDR, Intel VR12, AMD SVI
Voltage - Input 3.3V
Number of Outputs 2
Operating Temperature -20°C ~ 85°C
Mounting Type Surface Mount

Overview

Description

IR3541MTRPBF is a high-performance PWM controller from International Rectifier/Infineon for DC-DC buck regulators (VRMs). It provides voltage‑mode (and current‑mode) regulation with external N‑channel MOSFETs, supports multi‑phase configurations, and includes protections such as overcurrent, over/under voltage, and thermal shutdown, plus soft‑start and programmable switching frequency. The MTRPBF suffix denotes Pb‑free, RoHS‑compliant packaging (tape‑and‑reel). Typical applications include CPU/GPU VRMs, high‑efficiency power modules, and telecom/DC‑DC supplies. For exact electrical specs (input range, reference voltages, current limit, f_sw, etc.), refer to the IR3541M datasheet.

Equivalent

IR3541MTRPBF is Infineon/International Rectifier IR3541 multiphase buck regulator controller. Equivalent parts depend on required specs (voltage, current, number of phases, package, PMBus). For exact cross-references, provide target specs or a datasheet link and I’ll pull direct TI/Analog Devices/On Semiconductor/MPU equivalents from distributor cross-references.

Features

Key features of IR3541MTRPBF:
- Offline flyback controller with primary-side regulation (PSR)
- High-voltage startup and integrated switch (≈700V range)
- Current-mode PWM control with slope compensation
- Valley switching capability; programmable switching frequency
- Comprehensive protections: overcurrent/short-circuit, overvoltage, overtemperature, UVLO
- Soft-start and hiccup fault protection
- Enable/shutdown input and brown-out detection
- Low quiescent current for standby efficiency
- 8-pin package; Pb-free, RoHS-compliant; Tape & Reel (MTRPBF)
Note: for exact electrical specs (voltage ranges, freq range, etc.), consult the datasheet.

Pinout

Pin count: 16 pins.
Function: IR3541MTRPBF is a multi‑phase DC‑DC buck regulator controller with gate‑driver outputs for external MOSFETs (VRM application). It provides PWM/current‑mode control, soft‑start, enable/UVLO, and protection features for regulating processor/server rails.

Manufacturer

The manufacturer is Infineon Technologies (the IR prefix comes from International Rectifier, now part of Infineon).
Infineon is a German multinational semiconductor company that designs and manufactures power semiconductors and related system solutions for automotive, industrial, and consumer applications.

Application

IR3541MTRPBF is a multi‑phase PWM controller used for voltage‑regulator modules (VRMs). Typical applications:
- CPU/GPU core voltage regulation (multi‑phase buck regulators) in desktops and servers
- Graphics cards, memory subsystems, and other high‑current POK (point‑of‑load) regulators
- Telecom and industrial DC‑DC converter power stages
- Data center power supplies and rack PMICs requiring efficient, compact VRMs
It enable phase interleaving, current sharing, and fast transient response for high efficiency VRMs.

Package

IR3541MTRPBF uses an 8-pin MTR package (Pb-free).

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