IR3541MTRPBF

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IR3541MTRPBF

IC REG CTRLR DDR 2OUT 40QFN

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Specifications

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Obsolete
Applications Controller, DDR, Intel VR12, AMD SVI
Voltage-Input 3.3V
NumberofOutputs 2
OperatingTemperature -20°C ~ 85°C
MountingType Surface Mount
Package/Case 40-VFQFN Exposed Pad

Overview

Description

IR3541MTRPBF is an Infineon/International Rectifier multiphase buck regulator controller. It is used to drive external MOSFETs in a multi‑phase buck converter to generate high-current, low-voltage rails (e.g., CPU/GPU core voltages). The device coordinates timing across phases, provides a PWM control architecture, and includes features such as soft-start, enable/disable and tracking, plus protection (overcurrent, overvoltage/undervoltage, thermal). It requires external MOSFETs, inductors, and sense components to form a complete VRM solution. The MTRPBF suffix denotes Pb‑free, tape‑and‑reel packaging. Typical applications include VRMs for computer CPUs/GPUs, servers, and other digital power systems demanding stable, high‑current low‑voltage regulation.

Features

IR3541MTRPBF is a multi-phase, synchronous buck controller for VRMs (CPU/GPU). Key features include:
- External N‑channel MOSFET gate drive with multi‑phase capability
- Programmable switching frequency and voltage-positioning (remote sensing)
- Current-mode PWM with slope compensation
- Soft-start and output tracking
- Protection: overcurrent/short‑circuit, overvoltage, undervoltage/UVLO, overtemperature (OTP)
- Fault reporting and Power-Good signaling
- Enable input and sequencing options
- Pb-free MTRPBF package (compact QFN-like package)
Note: exact timing ranges and pinout are in the datasheet; these are the typical features for this device.

Package

Pb-free molded Tape‑and‑Reel package (MTRPBF); an 8‑pin molded package.

Pinout

Pin count: 8 pins (MSOP-8/SOP-8 package).
Function: IR3541MTRPBF is a PWM controller for DC-DC buck regulators (VRM). It generates the PWM drive for external MOSFETs based on feedback, and includes oscillator, soft-start/current limit, and enable features (external MOSFETs required).

Manufacturer

Manufacturer: Infineon Technologies (the International Rectifier brand). Infineon is a German multinational semiconductor company that designs and manufactures power semiconductors, integrated circuits, and energy-efficient solutions for automotive, industrial, and consumer markets.

Application

Used for high-efficiency switch-mode power supplies and voltage regulators, including CPU/GPU VRMs (multi‑phase buck regulators), desktop/server brick PSUs, telecom/datacom power rails, industrial power supplies, and battery charging circuits.

Equivalent

Equivalent parts depend on your specs. There isn’t a single drop-in substitute for IR3541MTRPBF. Please share target input range, max output current, number of phases, required rails, and package. With that, I can suggest closest substitutes from TI, Analog Devices, ST, or RichTek.

Shipping

Shipping MethodsWe

offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.


Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

The Payment term is 100% Prepaid.

Currently, we only accept the below payment methods:

1. PayPal

2. Credit/ Debit Card

3. Wire Transfer

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