LM4050BEX3-2.5+T

Voltage Reference Overview

The LM4050BEX3-2.5+T is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse breakdown voltage of 2.500V with an initial accuracy of 0.2% and a maximum temperature coefficient of 50ppm/°C. The device operates within a wide current range from 60µA to 15mA and features low dynamic impedance. It is housed in a subminiature 3-pin SC70 surface-mount package (1.8mm x 1.8mm) and guarantees performance over an operating temperature range of -40°C to +125°C.

Voltage Reference Feature Summary

• Ultra-small 3-pin SC70 surface-mount package for space-critical applications
• Laser-trimmed resistors ensure high initial accuracy
• Stable operation without requiring external stabilizing capacitors
• Capable of tolerating any capacitive load

Voltage Reference Applications

• Portable, battery-powered equipment
• Notebook computers
• Cell phones
• Industrial process controls
• Automotive systems

Voltage Reference Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and accuracy grade. Confirm RoHS compliance status through manufacturer datasheets or certificates. Ensure the selected variant matches the required thermal resistance and power dissipation limits for the intended ambient temperature conditions.

Voltage Reference Selection Notes

Select this component when a compact footprint is required alongside stable voltage regulation. The B-grade offers a balance between tight tolerance and cost-effectiveness compared to A-grade options. Verify that the source resistor allows sufficient current headroom while maintaining the minimum operating threshold across all expected supply voltage variations.

Voltage Reference Part Context

This part belongs to the LM4050/LM4051 family of two-terminal bandgap voltage references. The series includes multiple fixed output voltages ranging from 1.225V to 5.000V. Variants are available in both SOT23 and SC70 packages with different accuracy grades (A, B, C). The LM4050 specifically covers voltages above 1.225V, while the LM4051 covers the 1.225V option.

Voltage Reference Replacement Considerations

LM4050CEX3-2.5+T (0.5% accuracy)

Voltage Reference FAQ

Does the LM4050BEX3-2.5+T require an external capacitor for stability?

No, the device does not require an external stabilizing capacitor and remains stable with any capacitive load.

What is the minimum operating current for this reference?

The minimum operating current is typically 60µA, ensuring proper regulation down to this level.