MAX6129AEUK30+T

Overview

The MAX6129AEUK30+T is a micropower, low-dropout bandgap voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 3V with an initial accuracy of ±0.4% and a maximum temperature coefficient of 40ppm/°C. The device operates within a supply voltage range of 2.5V to 12.6V and features ultra-low supply current of 5.25µA (max). It can source up to 4mA and sink up to 1mA of load current. The component is housed in a miniature 5-pin SOT-23 surface-mount package.

Feature Summary

• Ultra-low power consumption suitable for battery-operated systems
• High precision with ±0.4% initial accuracy and low drift
• Stable operation with capacitive loads without external compensation
• Low dropout voltage for efficient power management

Applications

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

Procurement Notes

Verify the specific suffix 'A' indicates the ±0.4% accuracy grade compared to the standard 'B' grade. Confirm the '+T' designation corresponds to tape-and-reel packaging. Ensure the part number matches the exact 3V output requirement. Check for RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this component when board space is limited due to its compact SOT-23-5 footprint. Choose this part over higher-power references if system efficiency and extended battery life are critical priorities. Consider the ±0.4% accuracy specification against application requirements before opting for lower-cost alternatives.

Part Context

This series-mode voltage reference utilizes a bandgap design to maintain stability across varying temperatures. The internal compensation eliminates the need for external capacitors, simplifying circuit layout. The device is designed to minimize power dissipation while providing reliable reference voltages for sensitive analog circuits.

Replacement Considerations

MAX6129BEUK30+T offers similar functionality but with ±1% accuracy and 100ppm/°C drift.

FAQ

Does the MAX6129AEUK30+T require an external capacitor for stability?

No, the internal compensation capacitor ensures stability with load capacitances up to 10µF without requiring external components.

What is the maximum input voltage for this device?

The absolute maximum rating for the input voltage is 13V, though the operational range is specified up to 12.6V.