MAX1864UEEE

Power Supply Controllers, Monitors Overview

The MAX1864UEEE+ is a switching controller designed for xDSL and cable modem triple/quintuple output power supplies. It utilizes a buck topology with a fixed switching frequency of 240 kHz and a maximum duty cycle of 90%. The device provides three outputs, including a regulated 3.3 V supply capable of delivering up to 50 mA. It operates within a temperature range of -40°C to +85°C and is housed in a QSOP-16 surface-mount package.

Power Supply Controllers, Monitors Feature Summary

• Designed specifically for generating multiple voltage rails required by xDSL and cable modem applications.
• Integrates a buck converter architecture to manage primary power conversion efficiently.
• Supports flexible output configurations suitable for powering complex communication system components.

Power Supply Controllers, Monitors Applications

• xDSL modem power supply systems
• Cable modem multi-rail power generation
• Communication equipment auxiliary power regulation

Power Supply Controllers, Monitors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to discontinuation status. Confirm RoHS compliance details via official documentation before integration. Ensure the specific suffix matches design requirements as packaging variations may exist. Request updated lifecycle status confirmation from suppliers prior to final procurement decisions.

Power Supply Controllers, Monitors Selection Notes

Evaluate thermal management capabilities within the specified operating temperature range. Verify compatibility with external passive components for the 240 kHz switching frequency. Assess load requirements against the 50 mA output current limit. Consider PCB layout constraints imposed by the QSOP-16 package footprint during design phase.

Power Supply Controllers, Monitors Part Context

This component belongs to the MAX1864 series of power management ICs focused on telecommunications infrastructure. It serves as a specialized controller for creating stable voltage rails in broadband access devices. The series addresses the need for compact, efficient power solutions in space-constrained modem hardware designs.

Power Supply Controllers, Monitors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices technical support for potential legacy replacements or updated series alternatives compatible with xDSL/cable modem architectures.