LTC4264CDE#TRPBF

Overview

The LTC4264CDE#TRPBF is a Power Over Ethernet (PoE) Powered Device controller compliant with IEEE 802.3af standards, manufactured by Analog Devices Inc. It integrates a high-side power switch and control logic within a compact 12-lead DFN package. The device manages power classification, detection, and protection for PoE applications.

Feature Summary

• Integrates a high-side power switch with internal current limiting
• Supports IEEE 802.3af Powered Device classification
• Includes comprehensive protection against overvoltage and reverse polarity

Applications

• IEEE 802.3af Powered Device implementations
• Network interface cards requiring PoE input
• IoT edge devices powered via Ethernet cables

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the component matches the exact DFN-12 footprint requirements of your PCB layout design.

Selection Notes

Select this component for designs requiring integrated PoE PD functionality without external switches. Verify that the 750mA current limit aligns with the target application's power budget. Ensure the operating temperature range meets the environmental constraints of the final deployment scenario.

Part Context

This part belongs to the LTC4264 family of PoE controllers designed for low-power networked devices. It simplifies system design by combining detection, classification, and switching functions into a single monolithic solution, reducing bill-of-materials complexity for standard PoE endpoints.

Replacement Considerations

Check for direct pin-compatible alternatives within the same Analog Devices PoE portfolio. Verify functional equivalence regarding classification thresholds and current limits before substitution.