MAX6025BEUR+T

Overview

The MAX6025BEUR+T is a precision, low-power, low-dropout series voltage reference housed in a miniature SOT23-3 surface-mount package. It provides a fixed output voltage of 2.5V with an initial accuracy of ±0.4% and a maximum temperature coefficient of 25ppm/°C across the -40°C to +85°C operating range. The device draws a quiescent supply current of 35μA maximum and supports up to ±500μA of load source/sink current. It operates within an input voltage range from VOUT + 0.2V to 12.6V.

Feature Summary

• Utilizes proprietary curvature-correction circuitry and laser-trimmed thin-film resistors for high precision.
• Internally compensated design eliminates the need for external compensation capacitors.
• Capable of sourcing and sinking load currents up to 500μA with minimal dropout voltage.
• Maintains stability with capacitive loads ranging from 0 to 2.2nF.

Applications

• Hand-held equipment
• Data acquisition systems
• Industrial and process-control systems
• Battery-operated equipment
• Hard-disk drives

Procurement Notes

Verify the specific 'B' grade suffix ensures the required ±0.4% initial accuracy tolerance rather than the tighter ±0.2% specification found in 'A' grade variants. Confirm that the SOT23-3 package footprint matches the target PCB layout dimensions. Ensure the input voltage source can provide sufficient current during turn-on transients to guarantee reliable startup under all operating conditions.

Selection Notes

Select this component when a stable 2.5V reference is needed in space-constrained designs requiring surface-mount integration. The micropower consumption makes it suitable for battery-powered applications where efficiency is critical. Consider the ±0.4% accuracy limit if higher precision is required, as the 'A' grade variant offers tighter tolerances. Evaluate the 2.2nF capacitive load stability against the specific noise filtering requirements of the downstream circuitry.

Part Context

This part belongs to the MAX6012/MAX6021/MAX6025/MAX6030/MAX6041/MAX6045/MAX6050 family of precision bandgap references. All members share identical pinouts, packages, and core architectural features, differing primarily in their fixed output voltage levels. The MAX6025 specifically targets the common 2.5V requirement within this standardized portfolio.

Replacement Considerations

The TSM6025AEUR+ is documented as a pin-for-pin alternate source for the MAX6025 series. Verify that the alternative supplier's specifications meet or exceed the original device's performance metrics before substitution.

FAQ

Does the MAX6025BEUR+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 without requiring an external compensation capacitor.

What is the difference between the MAX6025A and MAX6025B grades?

The primary difference is the initial accuracy; the MAX6025A guarantees ±0.2% accuracy, while the MAX6025B guarantees ±0.4% accuracy at +25°C.