LM4050CEX3-3.3+T

Voltage Reference Overview

The LM4050CEX3-3.3+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 0.5%. 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. Electrical 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 for space-critical applications
• Laser-trimmed resistors ensure precise initial accuracy
• Stable operation without requiring external stabilizing capacitors
• Capable of tolerating any 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 suffix characters against official documentation to confirm package type and RoHS compliance status. Confirm that the ordering information matches the required initial accuracy grade and output voltage tolerance. Ensure the selected component meets the thermal resistance requirements for the intended PCB layout and ambient operating conditions.

Voltage Reference Selection Notes

Select this component when a compact footprint is required alongside stable voltage referencing. The C-grade offers 0.5% initial accuracy suitable for general-purpose applications. Verify that the circuit design maintains the shunt current between 60µA and 15mA to ensure proper regulation and stability across the specified temperature range.

Voltage Reference Part Context

This part belongs to the LM4050/LM4051 family of micropower shunt voltage references. The series includes multiple fixed reverse breakdown voltages ranging from 1.225V to 5.000V. Variants are available in both SC70 and SOT23 packages with different accuracy grades (A, B, and C) to suit various precision requirements.

Voltage Reference Replacement Considerations

LM4050BEX3-3.3+T

Voltage Reference FAQ

Does the LM4050CEX3-3.3+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 65µA, with an absolute minimum guarantee of 45µA.