LTC4269CDKD-2#PBF

Overview

The LTC4269CDKD-2#PBF is a Powered Device (PD) controller compliant with IEEE 802.3at standards, designed for high-power Power over Ethernet applications. It integrates a synchronous rectifier and control logic within a 32-pin DFN package. The device supports classification detection and manages power delivery synchronization for controllers. It operates as a complete solution for PD implementation, handling input voltage regulation and protection features required by the 802.3at specification.

Feature Summary

• Complies with IEEE 802.3at high-power Powered Device standards
• Integrates synchronous rectification for efficient power conversion
• Provides classification detection and management capabilities
• Supports synchronization with upstream controllers

Applications

• High-power PoE Powered Devices
• IEEE 802.3at compliant network endpoints
• PoE-powered industrial equipment
• Wireless access points requiring high power budgets

Procurement Notes

Verify component authenticity through authorized Analog Devices channels or certified distributors. Confirm RoHS compliance status via official documentation. Check current availability as supply may be restricted. Ensure ordering suffix matches exact package and temperature grade requirements.

Selection Notes

Select this part for designs requiring full IEEE 802.3at compliance in a compact form factor. The integrated synchronous rectifier reduces external component count compared to asynchronous solutions. Consider thermal performance of the DFN-32 package for high-power dissipation scenarios. Verify compatibility with system voltage levels and control interface requirements.

Part Context

This component belongs to the LTC4269 family of PoE controllers from Analog Devices. It is specifically the commercial temperature grade variant with the DKD-2 suffix indicating the 32-lead DFN EP package. The #PBF designation confirms lead-free construction. It serves as a key building block for modern high-power networking infrastructure.

FAQ

What IEEE standard does the LTC4269CDKD-2#PBF support?

It supports the IEEE 802.3at standard for high-power Powered Devices.

Does this IC include synchronous rectification?

Yes, the LTC4269CDKD-2#PBF integrates a synchronous rectifier to improve efficiency.