IR3581MTRPBF

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IR3581MTRPBF

IC REG CTRLR INTEL 2OUT 48QFN

  • Manufacturer
  • Mfr. Part #IR3581MTRPBF
  • Package
  • Datasheet
  • In Stock7613

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Specifications

Part Status Obsolete
Base Product Number IR3581
Applications Controller, Intel VR12, VR12.5
Voltage - Input 3.3V
Number of Outputs 2
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package 48-VFQFN Exposed Pad
Supplier Device Package 48-QFN (6x6)
Packaging Tape & Reel (TR)

Overview

Description

IR3581MTRPBF is Infineon/International Rectifier’s multiphase PWM controller for VRMs. It provides current‑mode control and gate‑drive outputs to external N‑channel MOSFETs to build a multi‑phase buck regulator, commonly used for CPU/GPU core power.
Key features:
- Programmable switching frequency
- Multi‑phase synchronization and current balancing
- Soft‑start and enable/shutdown
- Protections: overcurrent, overvoltage, undervoltage, thermal shutdown
Notes:
- It is not a complete regulator by itself; you pair it with suitable MOSFETs, inductors, and capacitors to form a full VRM.
- MTRPBF denotes Pb‑free, RoHS‑compliant packaging (Tape & Reel).
Typical applications: CPU/GPU voltage regulation, server power rails. For exact electrical specs (voltage/current ranges, timing, and protection thresholds), consult the IR3581 datasheet.

Features

IR3581MTRPBF features (concise):
- High-voltage multiphase buck controller for CPU VRMs with external MOSFETs
- Input voltage range up to about 60 V
- Programmable switching frequency (fSW) range (typical 100 kHz–600 kHz)
- Current-mode PWM with slope compensation for stable transients
- Multi-phase operation with automatic current balancing across phases
- External gate-drive outputs for high- and low-side MOSFETs
- Adjustable deadtime control
- Robust protections: UVLO, overvoltage protection, cycle‑by‑cycle overcurrent protection, and thermal shutdown
- Soft-start with optional tracking for ramp control
- Enable input and fault/status signaling
- Pb-free, Tape & Reel packaging (MTRPBF)
Note: exact voltage ranges and specs are per datasheet; verify against the latest IR3581MTRPBF document for precise numbers.

Package

The IR3581MTRPBF is supplied in an 8-pin SOIC (SO-8) surface-mount package. "TRPBF" denotes tape-and-reel packaging and Pb‑free finish.

Manufacturer

The IR3581MTRPBF is made by Infineon Technologies (originally marketed under the International Rectifier/IR brand). Infineon is a global semiconductor manufacturer specializing in power semiconductors, power-management ICs, automotive and industrial microelectronics, and system solutions.

Application

- High-speed, multi-phase buck controller for high-current DC-DC conversion
- Multiphase VRMs for CPUs/GPUs and other high-performance processors
- Point-of-load regulators for FPGAs, ASICs, memory
- Server, data-center, and telecom/network power supplies
- General high-efficiency DC-DC converters in consumer and embedded applications

Equivalent

I don’t want to give wrong equivalents—can you confirm the device function or share the datasheet/link for IR3581MTRPBF (manufacturer)? Once I know whether it’s a buck regulator controller, LED driver, etc., I’ll list close equivalents (TI, Maxim, Renesas, Richtek options) concisely.

Shipping

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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

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