LM5072MHX-50/NOPB

Overview

The LM5072MHX-50/NOPB is an integrated Power Over Ethernet (PoE) Powered Device (PD) interface and PWM controller designed for high-voltage applications. It supports the IEEE 802.3af PoE standard with a supply voltage range of 9V to 70V. The device features an internal DC/DC converter capable of delivering up to 12.95W of output power. It operates within a temperature range of -40°C to +125°C and utilizes a 16-PowerTSSOP package.

Feature Summary

• Integrates PoE PD interface logic with a synchronous buck PWM controller
• Supports auxiliary power input for enhanced efficiency during high-load operation
• Includes internal soft-start and comprehensive protection mechanisms

Applications

• IEEE 802.3af Powered Device endpoints
• Industrial networking equipment
• Security camera systems
• Wireless access points

Procurement Notes

Verify that the specific suffix '50' corresponds to the intended voltage threshold or variant configuration as defined in the official Texas Instruments datasheet. Confirm RoHS compliance status and ensure the 16-HTSSOP package dimensions match the target PCB footprint requirements prior to integration.

Selection Notes

Select this component for designs requiring a combined PoE interface and step-down conversion in a single IC. It is suitable for applications needing support for auxiliary power sources to improve thermal performance. Ensure the input voltage range aligns with the available PoE class specifications.

Part Context

This part belongs to the LM5072 family of integrated PoE controllers. It combines the functionality of a PD interface controller with a high-efficiency DC/DC converter, simplifying the design of powered devices that require both classification communication and power regulation from a single source.

Replacement Considerations

LM5072MHX-80/NOPB is a public confirmed substitute offering similar functionality with different voltage thresholds.