MAX6339KUT

Overview

The MAX6339KUT is a quad voltage monitor manufactured by Analog Devices Inc./Maxim Integrated. It monitors up to four separate power supplies and provides an active-low reset signal when any monitored voltage drops below its threshold. The device operates within a supply voltage range of 1V to 5.5V, with a typical quiescent current of 35µA. It features open-drain outputs and is available in a SOT-23-6 package. The component supports adjustable thresholds and fixed options including 1.62V, 2.7V, and 4.5V.

Feature Summary

• Monitors up to four independent power supply rails simultaneously
• Generates an active-low reset signal upon undervoltage detection
• Supports both fixed and adjustable threshold voltages for flexible design
• Operates with low quiescent current suitable for battery-powered applications

Applications

• Embedded electronic systems requiring multi-rail power supervision
• Microcontroller systems needing reliable reset generation
• Complex power management architectures monitoring multiple voltage domains

Procurement Notes

Verify the specific suffix (e.g., KUT vs. CUT) against the official datasheet to confirm pinout and threshold configurations. Confirm RoHS compliance status as indicated in the manufacturer's documentation. Check for obsolescence notices or lifecycle status updates from Analog Devices prior to procurement planning.

Selection Notes

Select this component when simultaneous monitoring of four distinct voltage rails is required in a compact footprint. Ensure the chosen threshold configuration matches the system's critical voltage levels. Verify that the open-drain output capability aligns with the downstream logic requirements and pull-up resistor constraints.

Part Context

The MAX6339 series belongs to Maxim Integrated's uPower Supervisor family, designed for low-power applications. The KUT variant specifically denotes the SOT-23-6 package option. This part is part of a broader portfolio of voltage supervisors offering various channel counts and threshold options for diverse power management needs.

Replacement Considerations

Cross-reference with MAX6338GUB+T for similar quad-monitoring functionality in different packaging. Consider MAX6339CUT+T or MAX6339HUT+T for alternative package variants within the same functional family, ensuring electrical parameters match the application requirements.