LM4051AIM3-1.2

Voltage Reference Overview

The LM4051AIM3-1.2 is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse breakdown voltage of 1.225V with an initial accuracy of 0.1% (Grade A). The device operates within a wide current range of 60µA to 15mA and features a maximum temperature coefficient of 50ppm/°C over the -40°C to +125°C temperature range. It utilizes a 3-pin SOT-23 surface-mount package.

Voltage Reference Feature Summary

• Laser-trimmed resistors ensure high initial accuracy without requiring external stabilizing capacitors.
• Capable of tolerating any capacitive load while maintaining stability.
• Designed for space-critical applications with an ultra-small 3-pin SC70 or SOT-23 package.

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 the manufacturer's official documentation to confirm the exact grade, temperature range, and packaging configuration. Ensure compatibility with the target application's voltage and current requirements before procurement.

Voltage Reference Selection Notes

Select this component for designs requiring high precision in a minimal footprint. The 0.1% initial accuracy and low temperature coefficient make it suitable for sensitive analog circuits. Confirm that the 1.225V output aligns with system reference needs.

Voltage Reference Part Context

This part belongs to the LM4050/LM4051 family of precision two-terminal shunt-mode bandgap voltage references. The family offers multiple fixed reverse breakdown voltages and is characterized by low dynamic impedance and wide operating current capabilities across industrial and extended temperature ranges.

Voltage Reference Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's official documentation for recommended alternates or cross-reference data.

Voltage Reference FAQ

Does the LM4051AIM3-1.2 require an external capacitor for stability?

No, the advanced design ensures stability with any capacitive load without requiring an external stabilizing capacitor.

What is the initial accuracy grade for the LM4051AIM3-1.2?

The 'A' designation indicates Grade A, which guarantees an initial accuracy of 0.1% at 25°C.