MAX6050BEUR+T

Overview

The MAX6050BEUR+T is a precision, low-power, low-dropout series voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 5.000V with an initial accuracy of ±0.2% and a maximum temperature coefficient of 15ppm/°C over the extended operating range of -40°C to +85°C. The device operates within an input voltage range of VOUT + 0.2V to 12.6V, drawing a quiescent supply current of 35μA maximum. It features internally compensated stability for capacitive loads up to 2.2nF and can source or sink up to 500μA of load current.

Feature Summary

• Proprietary curvature-correction circuit combined with laser-trimmed thin-film resistors ensures high precision and low temperature drift.
• Series-mode architecture eliminates the need for external biasing resistors and maintains supply current virtually independent of input voltage variations.
• Internally compensated design guarantees stability with capacitive loads ranging from 0 to 2.2nF without requiring external compensation components.

Applications

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

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration when sourcing. Confirm that the 'BEUR' designation corresponds to the B-grade accuracy variant (+/-0.2%) and the SOT-23-3 surface-mount package. Ensure compliance with RoHS directives as indicated by the '+' suffix in the part number before final procurement integration.

Selection Notes

Select this component for applications requiring a stable 5V reference in space-constrained designs utilizing the SOT-23-3 footprint. It is suitable for battery-powered systems due to its ultra-low quiescent current and independence from supply voltage fluctuations. Consider the 500μA drive capability for moderate load requirements where shunt references would waste power through series resistors.

Part Context

This component belongs to the MAX6012/MAX6021/MAX6025/MAX6030/MAX6041/MAX6045/MAX6050 family of precision voltage references. All members share identical pinouts, package styles, and core architectural features, differing primarily in their fixed output voltage levels ranging from 1.247V to 5.000V.

Replacement Considerations

Direct functional substitutes within the same family include MAX6050AEUR+T (A-grade accuracy). Cross-family replacements require matching the 5V output, SOT-23-3 package, and precision specifications, though thermal and electrical characteristics may vary significantly between different manufacturers.

FAQ

Does the MAX6050BEUR+T require an external capacitor for frequency stability?

No, the device is internally compensated and stable with capacitive loads ranging from 0 to 2.2nF. An external capacitor is optional and primarily used to improve transient response or reduce overshoot.

How does the supply current behave relative to the input voltage?

The quiescent supply current is virtually independent of the supply voltage, exhibiting only a minimal variation of 0.8μA/V across the specified input range.