MAX6338NUB

Overview

The MAX6338NUB is a quad voltage monitor designed to supervise up to four independent power supplies without requiring external components. It operates within a supply voltage range of 2.5 V to 5.5 V and features active-low, open-drain outputs for reset signaling. The device includes specific threshold voltages, such as 4.63 V, and maintains an accuracy of 2.5%. It functions reliably across a temperature range of -40°C to +85°C in a compact 10-µMAX package.

Feature Summary

• Monitors up to four independent power supplies simultaneously
• Requires no external components for operation
• Provides active-low open-drain reset outputs
• Operates within a wide supply voltage range

Applications

• Supervising multiple voltage rails in embedded systems
• Power management in portable electronic devices
• Industrial control system voltage monitoring
• Communication equipment power supervision

Procurement Notes

Verify component status carefully as the MAX6338NUB is classified as obsolete and no longer manufactured by Analog Devices/Maxim Integrated. Sourcing may be limited to existing stock or third-party distributors. Confirm availability and authenticity through authorized channels before procurement planning.

Selection Notes

Consider this component only if legacy compatibility is required, as it is discontinued. Evaluate direct replacement options from the same manufacturer family that are currently in production. Ensure the new selection matches the pinout and functional requirements of the original design to minimize redesign efforts.

Part Context

The MAX6338 series belongs to Analog Devices' Maxim Integrated portfolio of supervisory circuits. These devices are engineered for reliable voltage monitoring in space-constrained applications. The NUB variant specifically denotes a fixed threshold configuration within the broader MAX6338 family, offering a standardized solution for multi-rail supervision.

Replacement Considerations

Direct substitutes include MAX6338OUB+ and MAX6338IUB+T. Verify pin compatibility and threshold specifications when transitioning to these alternatives.