MAX5973ETL+

Power Supply Controllers, Monitors Overview

The MAX5973ETL+ is a phase redundancy power supervisor manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 9V to 14V and functions reliably across an industrial temperature range of -40°C to +85°C. The component is housed in a 40-TQFN (5x5) package with exposed pad, designed for surface mount installation. This device serves as a supervisory circuit specifically engineered for multi-phase controller applications, ensuring system integrity through dedicated monitoring capabilities.

Power Supply Controllers, Monitors Feature Summary

• Provides phase redundancy supervision for multi-phase power systems
• Integrated voltage supervisory functionality for DC/DC converters
• Designed for robust operation in demanding industrial environments

Power Supply Controllers, Monitors Applications

• Multi-phase controller monitoring
• DC/DC converter supervision
• Power management IC oversight

Power Supply Controllers, Monitors Procurement Notes

Verify current availability status carefully, as this component is listed as discontinued or restricted in multiple distributor records. Confirm end-of-life notices and obsolescence dates directly with the manufacturer before finalizing design-in decisions. Alternative sourcing may be limited to surplus markets. Ensure compliance with RoHS3 specifications if required for your specific application standards.

Power Supply Controllers, Monitors Selection Notes

Select this part only when a dedicated phase redundancy supervisor is required for 9V-14V systems. The 40-TQFN footprint must be accommodated in the PCB layout. Consider that the device is specialized for supervisory roles rather than active power conversion control. Evaluate thermal performance requirements given the TQFN package constraints for your specific enclosure design.

Power Supply Controllers, Monitors Part Context

This component belongs to the Maxim Integrated PMIC portfolio, specifically within the supervisory circuits subcategory. It is distinct from general-purpose voltage monitors due to its focus on multi-phase redundancy logic. The MAX5973 series represents a specialized solution for high-reliability power architectures where phase failure detection is critical for system uptime.

Power Supply Controllers, Monitors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the discontinued status, direct pin-to-pin replacements are not explicitly listed. Designers should consult Analog Devices for potential next-generation alternatives or evaluate generic supervisors with compatible voltage ranges and package footprints.