MAX6129AEUK25+T

Overview

The MAX6129AEUK25+T is a micropower, low-dropout bandgap voltage reference in a 5-pin SOT-23 package. It provides a fixed output of 2.5V with an initial accuracy of ±0.4% and a maximum temperature coefficient of 40ppm/°C. The device operates within a supply range of 2.7V to 12.6V, drawing a maximum supply current of 5.75µA. It sources up to 4mA and sinks up to 1mA of load current, featuring a dropout voltage of 200mV at full source load. Internal compensation ensures stability with capacitive loads up to 10µF without external components.

Feature Summary

• Ultra-low quiescent supply current for extended battery life
• Miniature 5-pin SOT-23 surface-mount package
• Internal compensation eliminates need for external capacitors
• Low dropout voltage operation

Applications

• Battery-powered systems
• Handheld instruments
• Precision power supplies
• A/D and D/A converters

Procurement Notes

Verify the specific suffix 'AEUK25' corresponds to the A-grade accuracy and 2.5V output configuration. Confirm the '+T' designation indicates tape-and-reel packaging. Ensure the component meets RoHS compliance requirements for the target assembly process. Cross-reference the manufacturer's latest datasheet revision to confirm pinout and electrical specifications remain unchanged.

Selection Notes

Select this component when board space is limited due to the SOT-23 form factor. Choose this part if the application requires ultra-low static power consumption from the supply rail. Verify that the input voltage remains above the minimum dropout threshold relative to the 2.5V output under all load conditions. Consider the ±0.4% initial accuracy against system tolerance requirements.

Part Context

This device belongs to the MAX6129 series of micropower series voltage references manufactured by Analog Devices / Maxim Integrated. The family offers various fixed output voltages including 2.048V, 3V, 3.3V, 4.096V, and 5V. The series is designed for precision applications requiring stable reference voltages with minimal power dissipation in portable electronics.

Replacement Considerations

MAX6129BEUK25+T (B-grade, lower accuracy)

FAQ

Does the MAX6129AEUK25+T require an external capacitor for stability?

No, the device includes internal compensation and does not require an external capacitor for stability.

What is the maximum capacitive load the device can drive?

The MAX6129 is stable with capacitive loads up to 10µF when sourcing current.