LTC4271IUF#TRPBF

Overview

The LTC4271IUF#TRPBF is an eight-channel Power Sourcing Equipment (PSE) controller compliant with IEEE 802.3at PoE standards. It operates within a supply voltage range of 3V to 3.6V and draws a supply current of 10mA. The device is housed in a 24-WFQFN package with dimensions of 4x4 mm and features an exposed pad for thermal management. It supports surface mount installation and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Provides integrated control for eight independent PoE channels
• Ensures compliance with IEEE 802.3at power delivery standards
• Supports digital host interface communication for system integration

Applications

• High-density Ethernet switch designs requiring multiple powered ports
• Access point infrastructure supporting powered devices
• Industrial networking equipment utilizing PoE technology

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when sourcing components. Confirm that the I-grade designation matches the required industrial temperature specifications for your application environment. Ensure compatibility with the 24-QFN footprint during PCB layout verification.

Selection Notes

Select this component when designing systems requiring eight PoE channels within a compact form factor. Consider the 24-WFQFN package constraints for thermal dissipation requirements. Verify that the host controller can support the necessary digital interface protocols defined in the official datasheet for proper channel management.

Part Context

This part belongs to the Analog Devices LTC4271 family of PoE controllers. It serves as a specialized solution for managing power distribution over Ethernet networks. The component integrates essential control logic to manage power sourcing efficiently while maintaining strict adherence to industry-standard power delivery protocols.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.