MAX6129AEUK33

Overview

The MAX6129AEUK33+T is a series voltage reference IC manufactured by Analog Devices Inc. (Maxim Integrated). It provides a fixed output voltage of 3.3 V with an initial accuracy of 0.4% and a temperature coefficient of 40 PPM/°C. The device operates within an input voltage range up to 13 V and supports a maximum shunt current of 4 mA. It functions reliably across a temperature range of -40°C to +85°C. The component is housed in a SOT-23-5 surface-mount package.

Feature Summary

• Ultra-low-power series voltage reference design
• Factory-trimmed for high initial accuracy
• Low temperature coefficient for thermal stability

Applications

• Portable instrumentation systems
• Battery-powered measurement devices
• Data acquisition systems requiring stable references

Procurement Notes

Verify the exact suffix (+T) for tape-and-reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation, as regulatory requirements may vary by region and production batch. Ensure the specific grade (A) matches system precision requirements before procurement.

Selection Notes

Select this component when a fixed 3.3 V reference with 0.4% accuracy is required in a compact SOT-23-5 footprint. Consider the 40 PPM/°C drift rate against environmental conditions. Verify that the 4 mA maximum shunt current meets the load requirements of the target circuit application.

Part Context

This part belongs to the MAX6129A family of ultra-low-power series voltage references from Maxim Integrated. It is designed for applications demanding precise voltage regulation in space-constrained environments. The device complements other PMIC solutions by providing a stable reference point for analog-to-digital converters and sensor interfaces.

Replacement Considerations

Check for direct pin-compatible alternatives within the MAX6129 series or other Maxim series references. Verify that substitute components match the 3.3 V output, 0.4% accuracy, and SOT-23-5 package constraints.