LM4050AEX3-3.3+T

Voltage Reference Overview

The LM4050AEX3-3.3+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 3.3V with an initial accuracy of ±0.1% and a maximum temperature coefficient of 50ppm/°C. The device operates within a wide current range of 60µA to 15mA and functions reliably across a temperature range of -40°C to +125°C. It utilizes laser-trimmed resistors for stability and does not require external stabilizing capacitors, ensuring compatibility with any capacitive load.

Voltage Reference Feature Summary

• Ultra-small 3-pin SC70 surface-mount package
• Laser-trimmed resistors ensure excellent initial accuracy
• Low dynamic impedance maintains stable voltage over wide operating currents
• No output capacitors required while tolerating capacitive loads

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 variant matches the intended electrical grade and temperature range specifications. Ensure the component source aligns with authorized distribution channels to guarantee authenticity and traceability.

Voltage Reference Selection Notes

Select this component when space constraints necessitate the subminiature SC70 package. Choose this part for applications requiring high initial accuracy and low temperature drift without the complexity of external stabilization components. Verify that the system supply voltage and load current requirements fall within the specified operational limits for proper regulation.

Voltage Reference Part Context

This device 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 SOT23 packages with different accuracy grades ranging from 0.1% to 0.5%.

Voltage Reference Replacement Considerations

LM4050BEX3-3.3+T (0.2% accuracy)

Voltage Reference FAQ

Does the LM4050AEX3-3.3+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 minimum operating current for this voltage reference?

The minimum operating current is typically 67µA at +25°C, with a guaranteed minimum of 45µA across the full temperature range.