MAX1938EEI-T

Overview

The MAX1938EEI-T is a dual-synchronous buck controller designed for Power over Ethernet (PoE) applications. It operates with an input voltage of 24V and provides a single programmable output. The device supports output voltages ranging from 800mV to 3.6V and delivers up to 30A of output current. It functions within a temperature range of -40°C to +85°C and is housed in a QSOP-28 surface-mount package.

Feature Summary

• Dual-synchronous buck controller architecture optimized for PoE power delivery
• Integrated protection features for internal MOSFETs and external power stages
• Supports stable power delivery with easy integration into industrial networking designs

Applications

• Power over Ethernet (PoE) controllers
• Industrial networking equipment
• CPU and special purpose regulator applications

Procurement Notes

Verify availability status as supply may be limited or subject to factory special orders. Confirm the specific suffix matches the required package and temperature grade. Ensure compatibility with existing PoE system designs before procurement.

Selection Notes

Select this component for dual-synchronous buck control in PoE systems requiring high current capability. Verify that the 24V input and programmable output range align with system requirements. Consider the QSOP-28 package constraints for PCB layout.

Part Context

This part belongs to the Maxim Integrated portfolio, now part of Analog Devices Inc. It is specifically engineered for power management in communication infrastructure, providing efficient voltage conversion for downstream logic loads.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for cross-reference information.