MAX6037BAUK21+T

Overview

The MAX6037BAUK21+T is a low-dropout, micropower voltage reference from the MAX6037 family. It provides a fixed output voltage of 2.048V with an initial accuracy of ±0.3% and a maximum temperature coefficient of 50ppm/°C. The device operates from a supply voltage range of 2.5V to 5.5V and features active-low shutdown functionality that reduces quiescent current to less than 500nA. It can source and sink up to 5mA of load current while maintaining stability with capacitive loads between 0.02µF and 1µF.

Feature Summary

• Active-low shutdown mode significantly reduces power consumption for battery-operated systems
• Low dropout voltage enables efficient operation in low-voltage applications
• High precision specifications ensure stable reference performance across temperature variations
• Compact 5-pin SOT23 package facilitates space-constrained circuit designs

Applications

• Medical equipment requiring precise analog signal conditioning
• Portable electronic devices utilizing battery power management
• Wireless LAN infrastructure components needing stable biasing
• Precision regulators demanding high accuracy voltage references

Procurement Notes

Verify the specific suffix 'B' indicates the 0.3% initial accuracy grade and 'K' denotes the SOT-23-5 package configuration. Confirm the '+T' suffix corresponds to tape-and-reel packaging requirements for your assembly process. Ensure compatibility with automotive temperature specifications if deployed in harsh environments.

Selection Notes

Select this component when a fixed 2.048V reference is required with moderate precision (0.3%) and low power consumption. Consider the MAX6037AAUK21+T variant if tighter accuracy (0.2%) and lower temperature coefficient (25ppm/°C) are necessary. Evaluate the shutdown current requirements against system standby specifications before finalizing the choice.

Part Context

This part belongs to the Maxim Integrated MAX6037 family of low-power voltage references. The family includes fixed output options ranging from 1.25V to 4.096V and an adjustable version. All variants share similar architectural features including low dropout characteristics and shutdown capabilities, differing primarily in output voltage, accuracy grades, and temperature coefficients.

Replacement Considerations

MAX6037AAUK21+T offers higher precision with 0.2% accuracy and 25ppm/°C tempco. MAX6037CAUK21+T provides standard 0.5% accuracy at potentially lower cost. Verify pinout compatibility and electrical parameter overlaps before substituting.