LM5073MHX

Overview

The LM5073MHX is a Power over Ethernet (PoE) controller designed for IEEE 802.3af compliant Powered Devices. It operates within a supply voltage range of 9V to 70V and supports a maximum power output of 12.95 W. The device integrates internal switches and functions as a DC/DC controller with one channel. It is housed in a 14-HTSSOP package and is rated for an operating temperature range of -40°C to 125°C.

Feature Summary

• Complies with IEEE 802.3af PoE standards for Powered Device applications
• Integrates internal switches for simplified circuit design
• Supports auxiliary power functionality

Applications

• IEEE 802.3af Powered Device implementations
• Power management systems requiring integrated switching control
• Industrial equipment utilizing PoE connectivity

Procurement Notes

Verify component authenticity through authorized channels, as the LM5073 family may have specific lifecycle statuses. Confirm that the suffix 'MHX' corresponds to the tape-and-reel packaging variant rather than tube packaging. Ensure compatibility with system requirements regarding the 14-pin HTSSOP footprint and thermal performance limits.

Selection Notes

Select this component for designs strictly adhering to the 802.3af standard. Verify that the input voltage remains within the 9V to 70V operational window. Consider the 14-pin package constraints for PCB layout. Evaluate if the integrated switch capability meets the load requirements without external components.

Part Context

This part belongs to the Texas Instruments LM5073 series of PoE controllers. It serves as a specialized solution for managing power delivery in networked devices. The device distinguishes itself by combining control logic with internal switching elements, reducing the bill of materials for standard PoE PD applications.

Replacement Considerations

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