MAX6333UR25D3-T

Overview

The MAX6333UR25D3-T is a microprocessor supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of 1.8V to 5.5V and features a fixed threshold voltage of 2.5V for power monitoring. The device provides an active-low, push-pull reset output with a typical timeout period of 200ms. Designed for surface-mount installation, it utilizes a compact SOT-23-3 package. The component supports an extended industrial operating temperature range from -40°C to +125°C and consumes a low quiescent current of 3.3µA.

Feature Summary

• Monitors single power supply voltage against a preset threshold
• Asserts active-low reset signal during brown-out conditions
• Provides push-pull output drive capability
• Operates across extended industrial temperature ranges

Applications

• Microprocessor (µP) system supervision
• Digital system power monitoring
• Low-voltage embedded controller protection

Procurement Notes

Verify the exact suffix configuration against official documentation, as variations exist within the MAX6333 family. Confirm availability status directly with authorized distributors or the manufacturer, as specific lot codes may impact lead times. Ensure compliance with RoHS directives if required for your assembly process. Cross-reference the datasheet revision date to confirm parameter accuracy before finalizing procurement specifications.

Selection Notes

Select this component when a fixed 2.5V threshold is required for systems powered between 1.8V and 5.5V. The push-pull output is suitable for driving loads directly without external pull-up resistors. Consider the SOT-23-3 package constraints for PCB layout. Verify that the 200ms timeout meets the startup requirements of the target microprocessor or digital logic.

Part Context

This part belongs to the MAX6332/MAX6333/MAX6334 series of ultra-low-voltage, low-power µP reset circuits. These devices are designed to increase circuit reliability by eliminating external components and adjustments. The MAX6333 variant specifically offers an active-low, push-pull output, distinguishing it from the active-high MAX6332 and open-drain MAX6334.

Replacement Considerations

Direct replacements include MAX6333UR25D3+T or other variants within the MAX6333 series with compatible thresholds and packages. Verify pinout compatibility and electrical parameters such as quiescent current and timeout duration before substitution.