LTC4263IS#TRPBF

Overview

The LTC4263IS#TRPBF is an autonomous single-channel Power Sourcing Equipment (PSE) controller designed for IEEE 802.3af compliant Power over Ethernet systems. It integrates a power MOSFET, internal inrush current control, and short-circuit protection. The device supports PD detection and classification, ensuring compliance with standard PoE protocols while managing power delivery efficiently.

Feature Summary

• Autonomous operation for IEEE 802.3af PSE applications
• Integrated power MOSFET with inrush and short-circuit control
• Built-in PD detection and classification logic

Applications

• IEEE 802.3af compliant Power over Ethernet systems
• Single-channel PSE controllers
• Network infrastructure power management

Procurement Notes

Verify the specific suffix IS against the official Analog Devices datasheet to confirm package type and temperature range. Confirm availability status as supply may be limited or subject to factory order constraints. Ensure compatibility with existing PCB footprints for DFN-14 or SOIC packages depending on the exact variant specifications.

Selection Notes

Select this component for designs requiring a compact, single-channel PoE solution that meets IEEE 802.3af standards. Consider the integrated switch capability which reduces external component count. Evaluate thermal performance requirements relative to the chosen package option and operating temperature range specified in the technical documentation.

Part Context

This part belongs to the LTC4263 series of PoE controllers from Analog Devices. It serves as a specialized IC for network equipment power sourcing, distinguishing itself through integrated switching and protection features tailored for autonomous deployment in standard Ethernet powered devices environments.

Replacement Considerations

Check for direct substitutes within the LTC4263 family or compatible IEEE 802.3af controllers from Analog Devices. Verify pinout compatibility and electrical parameter alignment before substitution.