LTC4266CGW#TRPBF

Overview

The LTC4266CGW#TRPBF is a quad Power Sourcing Equipment (PSE) controller manufactured by Analog Devices Inc. It supports IEEE 802.3at PoE+ standards and integrates four independent channels for powering connected Powered Devices. The component operates within an input voltage range of 37V to 57V and utilizes a 44-lead SSOP package. Designed for high-density applications, it features integrated current sensing, fault protection, and compliance with strict power management requirements for network infrastructure.

Feature Summary

• Supports IEEE 802.3at PoE+ standards for high-power device classification
• Integrates four independent PSE channels in a compact footprint
• Includes built-in current sensing and comprehensive fault protection mechanisms
• Enables simplified design through integrated control logic and monitoring

Applications

• High-port-count Ethernet switches
• Power over Ethernet midspan injectors
• Network infrastructure equipment requiring PoE+ support
• Compact access points and base stations

Procurement Notes

Verify the specific suffix and manufacturer details against official Analog Devices documentation before procurement. Confirm availability status as supply constraints may affect lead times. Ensure compatibility with existing board designs regarding thermal management and pinout configurations. Cross-reference datasheet revisions to guarantee functional equivalence with current production units.

Selection Notes

Select this component when designing systems requiring multiple PoE+ ports within a limited space. Evaluate thermal performance requirements due to the integration of four channels in a single package. Consider the interface requirements for system control and monitoring capabilities provided by the controller. Verify that the operating temperature range meets the environmental conditions of the target application.

Part Context

This part belongs to the LTC4266 family of quad PSE controllers designed for PoE applications. It serves as a core component in modern networking hardware, enabling efficient power distribution over standard Ethernet cabling. The device addresses the need for higher power delivery while maintaining compliance with industry standards for data communication networks.

Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Ensure any replacement maintains identical pinout and functionality for direct integration without redesigning the PCB layout or control firmware.