MAX6338KUB

Overview

The MAX6338KUB+ is a quad voltage monitor manufactured by Analog Devices Inc. (Maxim Integrated). It monitors four supply voltages without external components, offering factory-trimmed thresholds for +5.0V, +3.3V, +3.0V, +2.5V, +1.8V, and -5.0V, or user-adjustable settings via a high-impedance comparator. The device operates within a +2.5V to +5.5V supply range with a low 25µA supply current. It features four independent open-drain active-low outputs and a reset timeout of less than 1ms. Packaged in a 10-pin µMAX/uSOP case, it functions reliably from -40°C to +85°C.

Feature Summary

• Monitors up to four supply voltages simultaneously without requiring external components
• Provides four independent open-drain active-low outputs for flexible system integration
• Includes a high-input impedance comparator option for adjustable monitoring or digital level translation

Applications

• Telecommunications equipment power supervision
• Desktop and notebook computer voltage monitoring
• Data storage equipment power management
• Networking infrastructure control systems

Procurement Notes

Verify the specific suffix KUB against official Analog Devices documentation to confirm threshold configurations. Ensure the ordering part number matches the required voltage monitoring parameters. Confirm package type compatibility during procurement. Check availability status as distribution may vary. Validate RoHS compliance requirements for your specific application needs before finalizing orders.

Selection Notes

Select this component when simultaneous monitoring of multiple voltage rails is required in space-constrained designs. The integrated nature eliminates external resistor networks, reducing board area. Consider the 25µA quiescent current for battery-operated applications. Verify that the open-drain output configuration aligns with the downstream logic levels. Ensure the operating temperature range meets environmental specifications.

Part Context

The MAX6338 belongs to Maxim's family of supervisory circuits designed for compact power management solutions. It integrates multiple voltage monitoring channels into a single small footprint. This series targets applications requiring reliable power sequence control and fault detection. The µMAX package allows for dense PCB layouts in portable and industrial devices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.