MAX6034AEXR33+T

Overview

The MAX6034AEXR33+T is a precision, micropower, low-dropout series voltage reference housed in a miniature 3-pin SC70 surface-mount package. It features a proprietary temperature coefficient curvature-correction circuit and laser-trimmed thin-film resistors, achieving an initial accuracy of ±0.2% (max) and a maximum temperature coefficient of 30ppm/°C. The device operates over an extended temperature range of -40°C to +85°C with a supply voltage range from VOUT + 0.2V to 5.5V. It typically draws 90µA of supply current, sources up to 1mA, and sinks up to 200µA of load current.

Feature Summary

• Proprietary temperature coefficient curvature-correction circuit for high stability
• Laser-trimmed thin-film resistors ensure precise initial accuracy
• Internally compensated design eliminates the need for external compensation capacitors
• Ultra-low dropout voltage suitable for battery-powered applications

Applications

• Hand-Held Equipment
• Data-Acquisition Systems
• Industrial and Process Control Systems
• Battery-Operated Equipment
• Hard-Disk Drives

Procurement Notes

Verify the specific suffix 'A' indicates the ±0.2% accuracy grade and 'EXR33' denotes the 3.3V output in SC70-3 packaging. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor certificates prior to procurement. Ensure the ordering information matches the required electrical specifications for the target application environment.

Selection Notes

Select this component when space-constrained designs require a stable reference without external capacitors. The series-mode topology offers supply current independence from input voltage variations compared to shunt references. Verify that the input voltage remains within the specified range relative to the 3.3V output to maintain regulation and ensure the load requirements do not exceed the sourcing or sinking current limits.

Part Context

This part belongs to the MAX6034 family of precision bandgap references manufactured by Analog Devices / Maxim Integrated. The family includes various fixed output voltages and accuracy grades packaged in the compact SC70 form factor. These devices are designed to replace conventional shunt references by eliminating external resistors and saving board space while maintaining low power consumption.

Replacement Considerations

Compatible substitutes within the same family include MAX6034AEXR21-T, MAX6034AEXR25-T, MAX6034AEXR30-T, and MAX6034AEXR41-T, which share identical pinouts and package types but offer different fixed output voltages.