LTC9101AUF-3#PBF

Overview

The LTC9101AUF-3#PBF is a Power Sourcing Equipment (PSE) controller compliant with the IEEE 802.3at (PoE+) standard for 1000Base-T networks. It operates within a supply voltage range of 51 V to 57 V and supports up to 90 W output power. The device features a maximum on-resistance of 30 mOhms and draws 11 mA of operating current. It is housed in a 24-QFN package with dimensions of 4x4 mm and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Compliant with IEEE 802.3at PoE+ standards for high-power Ethernet applications
• Integrated power switch with low on-resistance for efficient energy transfer
• Supports 1000Base-T network interfaces for data and power delivery

Applications

• Power sourcing equipment for 1000Base-T network infrastructure
• High-power PoE+ midspan injectors
• Enterprise networking switches requiring PoE+ compliance

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix matches the required operational variant. Request official datasheets and RoHS compliance documentation prior to purchase. Ensure storage conditions align with manufacturer specifications to maintain integrity.

Selection Notes

Select this controller for designs requiring IEEE 802.3at compliance and 1000Base-T support. Consider the 24-QFN package constraints for PCB layout. Evaluate thermal management requirements given the 90 W output capability. Verify input voltage ranges match the system's 51 V to 57 V supply rails.

Part Context

This component belongs to the LTC9101 series of PoE controllers from Analog Devices. It is designed specifically for powering remote devices over Ethernet cables while maintaining data integrity. The series supports various PoE standards, with this specific model targeting the higher power requirements of the 802.3at specification.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.