LTC4279IUFD#PBF - Analog Devices Inc.

Manufacturer Part Number

LTC4279IUFD#PBF

Manufacturer

Analog Devices

Introduction

Single-Channel High-Power PoE Controller compliant with IEEE 802.3at, 802.3af, and LTPoE++ standards

Product Features and Performance

High power capability up to 90W

Supports IEEE 802.3at (PoE+), IEEE 802.3af (PoE), and LTPoE++ standards

No internal switch

Suitable for applications requiring high power PoE delivery

Limited power dissipation with external MOSFET

Flexible 45V to 57V supply voltage

Low supply current of 1.7mA

Thermal shutdown protection

Product Advantages

Enables delivery of higher power over Ethernet infrastructure

Easy integration with surface mount technology

Accommodates a wide range of input voltage

Supports longer cable runs due to higher permissible voltage

Low quiescent current for power saving

Key Technical Parameters

Number of Channels: 1

Power - Max: 90W

Voltage - Supply: 45V ~ 57V

Current - Supply: 1.7mA

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Built-in thermal protection

Compliant with industry PoE standards for safety and interoperability

Compatibility

Compatible with PoE devices requiring up to 90W

20-WFQFN Exposed Pad package compatible with standard PCB surface mount processes

Application Areas

Enterprise Ethernet switches and routers

PoE injectors

Network cameras and security systems

Wireless base stations

Product Lifecycle

Product status is Active

No known discontinuation or end-of-life announcements

Upgrade and replacement paths available for future integration

Several Key Reasons to Choose This Product

Capable of providing industry-leading power output for high-power PoE devices

Low operational cost due to high efficiency and low idle current

Broad compatibility with various power-over-Ethernet devices and standards

Robust design with built-in safety features to protect against overheating

Versatile application range, suitable for a variety of PoE delivery scenarios

Future-proof investment with active product support and longevity