LTC4264IDE#PBF

Overview

The LTC4264IDE#PBF is a Power Sourcing Equipment (PSE) controller designed for IEEE 802.3af compliant Power over Ethernet applications. It integrates a single high-side power switch with a DFN-14 package, supporting an operating voltage range of 33V to 66V. The device features a maximum on-resistance of 3 Ohms and includes built-in current limiting capabilities. It operates within a commercial temperature range of 0°C to +70°C, consuming a typical supply current of 2mA.

Feature Summary

• Integrates a single high-side power switch with control logic
• Compliant with IEEE 802.3af PoE standards
• Supports wide input voltage operation from 33V to 66V

Applications

• IEEE 802.3af Power Sourcing Equipment design
• PoE LAN interface controllers
• High-power PSE management systems

Procurement Notes

Verify component authenticity through authorized Analog Devices channels due to limited availability status. Confirm the specific suffix matches the required package and temperature grade. Ensure compliance with RoHS directives before integration into final assemblies.

Selection Notes

Select this component for single-channel PoE applications requiring integrated switching. Compare against the LTC4263 series for alternative configurations. Verify thermal requirements for the DFN-14 package in dense layouts.

Part Context

This part belongs to the LTC4263-1 series of Power Switch ICs. It serves as a specialized solution for managing power delivery in Ethernet networks. The device simplifies circuit design by combining control and switching functions.

Replacement Considerations

LTC4263CDE-1#PBF is a verified substitute within the same series offering similar functionality.