MAX6037AAUK41+T

Overview

The MAX6037AAUK41+T is a low-dropout, micropower voltage reference from the Maxim Integrated family. It provides a fixed output voltage of 4.096V with an initial accuracy of ±0.2% and a maximum temperature coefficient of 25ppm/°C. Operating within a supply range of 2.5V to 5.5V, it consumes a maximum quiescent current of 275µA and features active-low shutdown functionality reducing current to under 500nA. The device supports sourcing and sinking up to 5mA of load current and operates over the automotive temperature range of -40°C to +125°C in a 5-pin SOT-23 package.

Feature Summary

• Fixed 4.096V output with high precision A-grade specifications
• Active-low shutdown mode for significant power reduction
• Low dropout voltage capability for battery-powered efficiency
• Capable of sourcing and sinking 5mA load currents

Applications

• Medical Equipment
• Portable Equipment
• Wireless LAN Systems
• Precision Regulators

Procurement Notes

Verify the specific suffix '41' confirms the 4.096V fixed output variant. Ensure the 'AA' grade designation matches the required ±0.2% accuracy and 25ppm/°C temperature coefficient specifications. Confirm the '+T' indicates tape-and-reel packaging if automated assembly is planned. Cross-reference the manufacturer's latest documentation for any potential obsolescence or pinout changes.

Selection Notes

Select this component when a stable 4.096V reference is required with tight initial accuracy and low temperature drift. The A-grade performance suits applications demanding high precision without the cost of higher-tier references. Consider the shutdown feature for systems requiring extended battery life. Verify that the input voltage remains above the minimum requirement relative to the output voltage to maintain regulation.

Part Context

This part belongs to the MAX6037 family of low-power voltage references designed for space-constrained and battery-operated designs. The family includes adjustable versions and other fixed voltages like 1.25V, 2.5V, and 3.3V. The AAUK41 variant specifically targets applications needing the 4.096V standard often used in ADC/DAC interfaces. The SOT-23-5 package allows for compact PCB layouts.

Replacement Considerations

MAX6037BAUK41+T offers similar functionality with relaxed ±0.3% accuracy and 50ppm/°C tempco. MAX6037CAUK41+T provides ±0.5% accuracy and 50ppm/°C tempco. These variants share the same package and pinout but differ in precision grades.