LTC4269IDKD-2#TRPBF

Overview

The LTC4269IDKD-2#TRPBF is a Power over Ethernet Powered Device controller compliant with IEEE 802.3at standards, designed for high-power applications. It integrates a synchronous rectifier and a linear regulator to manage power delivery from the PSE. The device operates within a 37V to 57V input range and supports Class 4 power classification. Housed in a 32-pin DFN package, it provides precise voltage monitoring and control for reliable PoE integration.

Feature Summary

• Integrates a synchronous rectifier for efficient power conversion
• Supports IEEE 802.3at Class 4 power classification
• Includes an integrated linear regulator for internal biasing

Applications

• High-power Powered Devices requiring IEEE 802.3at compliance
• Network infrastructure equipment needing robust power management
• Industrial systems utilizing Power over Ethernet for data and power

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm the ID variant meets industrial temperature requirements compared to the C grade. Ensure compatibility with the system's PoE controller and voltage levels before procurement.

Selection Notes

Select this component for designs requiring integrated synchronous rectification and linear regulation in a compact form factor. The ID grade is suitable for industrial environments. Consider the 32-pin DFN footprint for PCB layout constraints and thermal performance requirements.

Part Context

This part belongs to the LTC4269 family of PoE PD controllers. It differs from other variants by its specific temperature grade and packaging configuration. The series is designed to simplify high-power PoE implementation by combining multiple functions into a single IC.

Replacement Considerations

Check for equivalent parts within the LTC4269 series that match the required temperature grade and packaging type. Verify pin-to-pin compatibility if substituting with other Analog Devices PoE controllers.