LM4050AEX3-3.0+T

Voltage Reference Overview

The LM4050AEX3-3.0+T is a precision two-terminal shunt-mode bandgap voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse breakdown voltage of 3.000V with an initial accuracy of ±0.1%. The device features a maximum temperature coefficient of 50ppm/°C and operates within a wide current range from 60µA to 15mA. It is housed in a subminiature 3-pin SC70 surface-mount package measuring 1.8mm x 1.8mm. The specifications are guaranteed over an operating temperature range of -40°C to +125°C.

Voltage Reference Feature Summary

• Ultra-small 3-pin SC70 surface-mount package
• Laser-trimmed resistors for high initial accuracy
• Stable operation without 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 RoHS compliance status. Confirm that the requested grade matches the required initial accuracy tolerance. Ensure the supply voltage and series resistor calculations maintain the shunt current between the minimum operating threshold and the absolute maximum rating to prevent damage.

Voltage Reference Selection Notes

Select this component when space constraints require a footprint smaller than standard SOT-23 packages while maintaining high precision. The 0.1% accuracy grade is suitable for applications demanding tight voltage tolerances. Verify that the application circuit maintains the minimum operating current to ensure stable regulation across the full specified temperature range.

Voltage Reference Part Context

This part belongs to the LM4050/LM4051 family of micropower shunt voltage references. The family offers multiple fixed reverse breakdown voltages including 1.225V, 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. Variants are available in both SC70 and SOT-23 packages with different accuracy grades ranging from 0.1% to 0.5%.

Voltage Reference Replacement Considerations

LM4050BEX3-3.0+T (0.2% accuracy)

Voltage Reference FAQ

Does the LM4050AEX3-3.0+T require an external capacitor for stability?

No, the device does not require an external stabilizing capacitor and ensures stability with any capacitive loads.

What is the function of Pin 3 on the SC70 package?

Pin 3 is a No Connection (N.C.) pin. It must be left unconnected or connected to Pin 2.