MAX1864TEEE+

Power Supply Controllers, Monitors Overview

The MAX1864TEEE+ 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 supports three outputs, providing a regulated voltage of 3.3 V at up to 50 mA per channel. It operates within an input voltage range of 4.5 V to 28 V and functions reliably across a temperature range of -40°C to +85°C. The component is housed in a 16-pin QSOP package.

Power Supply Controllers, Monitors Feature Summary

• Integrated switching controller optimized for generating multiple auxiliary power rails in communication systems
• Supports flexible output sequencing and tracking configurations for system stability
• Includes internal circuitry for current limiting and noise reduction on auxiliary regulators

Power Supply Controllers, Monitors Applications

• xDSL modem power supply design
• Cable modem power management
• Multi-rail DC-DC converter systems

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix TEEE against the manufacturer's official datasheet to confirm pinout and thermal characteristics. Confirm RoHS compliance status through the latest environmental documentation. Check for obsolescence notices as this series may be discontinued or subject to limited availability. Ensure the supplier provides valid traceability documents matching the Analog Devices part number.

Power Supply Controllers, Monitors Selection Notes

Select this component when designing power supplies for xDSL or cable modems requiring three distinct regulated outputs. It is suitable for applications needing synchronized buck conversion with integrated sequencing capabilities. Consider the 240 kHz switching frequency for EMI management and the 16-pin QSOP package for PCB layout constraints. Verify that the 50 mA output current per rail meets the load requirements of the target system.

Power Supply Controllers, Monitors Part Context

The MAX1864 belongs to a family of power management ICs tailored for broadband access equipment. It complements other Maxim Integrated controllers by providing dedicated auxiliary power generation. The device integrates control logic to manage startup sequences and protect downstream components from overcurrent conditions typical in communication hardware environments.

Power Supply Controllers, Monitors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official replacement guide or contact technical support for verified cross-reference data before implementation.