MAX6333UR25D3+T

Overview

The MAX6333UR25D3+T is a single-channel voltage supervisory circuit from the MAX6333 series, manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of up to 5.5 V and features an active-low push-pull RESET output. The device monitors a single input with a fixed threshold voltage of 2.5 V. It includes a reset timeout period of 100 ms minimum and consumes only 3.3 µA of quiescent current. The component is housed in a SOT-23-3 surface-mount package and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Provides reliable power-supply monitoring for microprocessor systems by asserting a reset signal when supply voltage drops below the preset threshold.
• Features an active-low push-pull output stage capable of driving loads directly without external pull-up resistors.
• Designed for ultra-low power consumption, making it suitable for battery-operated applications requiring extended operational life.

Applications

• Microprocessor (µP) and digital system power supply supervision
• Battery-powered portable electronic devices
• Consumer electronics requiring low-voltage monitoring

Procurement Notes

Verify the exact suffix D3+T against official datasheets to confirm the 2.5 V threshold and 100 ms timeout specifications. Confirm RoHS compliance status as indicated in manufacturer documentation. Check current lifecycle status, as some variants may be discontinued or subject to limited availability. Ensure the SOT-23-3 package matches your PCB footprint requirements before procurement.

Selection Notes

Select this part when a fixed 2.5 V threshold is required for single-supply monitoring. Choose the push-pull output variant if direct drive capability is needed without external components. Consider the 3.3 µA quiescent current for power-sensitive designs. Verify that the 100 ms timeout meets the system's startup timing requirements compared to other timeout options available in the MAX6333 family.

Part Context

This component belongs to the MAX6332/MAX6333/MAX6334 family of 3-pin, ultra-low-voltage, low-power µP reset circuits. These devices eliminate external components and adjustments by integrating fixed thresholds and timeouts. The MAX6333 specifically offers an active-low push-pull output, distinguishing it from the open-drain MAX6334 and active-high MAX6332.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material. Engineers should consult the official MAX6333 datasheet for cross-reference information or contact Analog Devices support for verified alternatives.