MAX5988AETP+T

Overview

The MAX5988AETP+T is a Power over Ethernet (PoE) controller designed for Powered Devices (PD) compliant with IEEE 802.3af standards. It integrates an internal switching regulator to provide efficient power conversion from the PoE input. The device operates within a supply voltage range of 1V to 16V and supports a single channel configuration. It features programmable current limiting and power fail detection capabilities. The component is housed in a 20-pin TQFN-EP package with an exposed pad for thermal management, suitable for surface-mount installation.

Feature Summary

• Integrates a high-efficiency internal switching regulator for Powered Device applications
• Provides programmable current limiting and power fail detection for system protection
• Supports IEEE 802.3af PoE compliance with single-channel control

Applications

• IEEE 802.3af Powered Device implementations
• Network infrastructure equipment requiring PoE power intake
• Embedded systems utilizing integrated DC/DC conversion from PoE sources

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation. Check for end-of-life or obsolescence notices as availability may be restricted. Ensure the 20-TQFN footprint matches the target PCB design constraints.

Selection Notes

Select this component for designs requiring an integrated solution for PoE-powered devices without external inductors. Consider the 20-TQFN package size for space-constrained layouts. Verify that the 1V to 16V input range aligns with the network switch's output specifications. Evaluate thermal performance requirements given the exposed pad design.

Part Context

This part belongs to the Maxim Integrated PoE controller family, specifically tailored for Powered Devices. It simplifies design by combining the PD controller logic with a step-down converter. The series focuses on reducing component count and board space in network endpoints.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult Analog Devices official resources for direct pin-compatible alternatives or functional equivalents.