MAX6338LUB+T

Overview

The MAX6338LUB+T is a quad voltage monitor from Analog Devices Inc./Maxim Integrated, designed to supervise up to four power supplies without external components. It operates within a supply voltage range of +2.5V to +5.5V and features four independent open-drain active-low outputs. The device offers factory-trimmed threshold voltages for standard rails including +5.0V, +3.3V, +3.0V, +2.5V, +1.8V, and -5.0V, alongside adjustable options. It consumes low supply current and functions reliably across an industrial temperature range of -40°C to +85°C in a compact 10-pin µMAX package.

Feature Summary

• Monitors four distinct voltage inputs simultaneously using internal comparators
• Provides four independent open-drain active-low reset outputs
• Eliminates the need for external resistors or capacitors for threshold setting
• Supports monitoring of positive and negative voltage rails

Applications

• Telecommunications equipment power supervision
• Desktop and notebook computer system monitoring
• Data storage equipment voltage tracking
• Industrial control systems
• Set-top boxes and networking hardware

Procurement Notes

Verify the specific suffix 'L' against official Maxim Integrated documentation to confirm the exact threshold voltage configuration, as this variant determines the monitored rail compatibility. Ensure the tape-and-reel packaging matches your automated assembly requirements. Cross-reference the RoHS compliance status with the manufacturer's latest environmental declarations before finalizing procurement orders.

Selection Notes

Select this component when simultaneous monitoring of multiple fixed or adjustable voltage rails is required without increasing bill-of-materials complexity. The open-drain output architecture allows for flexible interfacing with various logic families. Consider the low supply current consumption for battery-operated applications where standby power efficiency is critical. Verify that the operating temperature range meets the environmental constraints of the target deployment scenario.

Part Context

This part belongs to the MAX6338 family of quad voltage monitors, which are optimized for space-constrained designs requiring comprehensive power management supervision. The µMAX package provides a small footprint suitable for dense PCB layouts. As part of the Maxim Integrated portfolio now under Analog Devices, it maintains compatibility with established design libraries and reference implementations used in consumer and industrial electronics.

Replacement Considerations

Direct substitutes include other MAX6338 variants with different suffixes (e.g., I, O, P) that offer alternative threshold configurations. Ensure any replacement maintains the same 10-pin µMAX package and electrical characteristics. Verify that the substitute part supports the required number of monitored channels and output type.