LTC4274AIUHF-3#TRPBF

Overview

The LTC4274AIUHF-3#TRPBF is a third-generation single Power Sourcing Equipment (PSE) controller designed for endpoint or midspan implementations. It supports IEEE 802.3at (PoE+), 802.3af (PoE), and LTPoE++ standards. The device integrates essential circuitry for power delivery management within a 38-pin QFN EP package.

Feature Summary

• Supports multiple PoE standards including 802.3at, 802.3af, and LTPoE++
• Integrates necessary control circuitry for PSE implementation
• Configurable for both endpoint and midspan designs

Applications

• Power over Ethernet endpoint devices
• Midspan power injection systems
• IEEE 802.3at compliant network infrastructure
• LTPoE++ powered equipment

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the -I temperature grade matches operational requirements. Ensure compatibility with existing PCB footprints for the 38-QFN package before procurement.

Selection Notes

Select this component for applications requiring support for high-power LTPoE++ alongside legacy PoE standards. Consider the 38-pin QFN footprint constraints. Evaluate thermal performance needs as the device manages significant power levels in a compact form factor.

Part Context

This part belongs to the LTC4274 family of PSE controllers from Analog Devices. It represents a third-generation solution offering enhanced features compared to earlier models. The device is positioned for modern networking equipment requiring flexible power sourcing capabilities.

Replacement Considerations

The LTC4274AIUHF-1#TRPBF is a confirmed substitute within the same family. Verify pinout and feature parity between the -1 and -3 variants before replacement.