LM4050AIM3-2.1+T

Voltage Reference Overview

The LM4050AIM3-2.1+T is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse breakdown voltage of 2.048V with an initial accuracy of 0.1% and a maximum temperature coefficient of 50ppm/°C. The device operates within a wide current range from 60µA to 15mA and features low output noise of 28µVRMS (10Hz to 10kHz). It is housed in an ultra-small 3-pin SC-70 surface-mount package, suitable for space-critical applications, and functions reliably over a temperature range of -40°C to +125°C.

Voltage Reference Feature Summary

• Ultra-small 3-pin SC-70 surface-mount package
• High initial accuracy of 0.1%
• Wide operating current range from 60µA to 15mA
• Low output noise of 28µVRMS

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix and manufacturer designation when sourcing, as Analog Devices acquired Maxim Integrated. Confirm the exact voltage grade (2.048V) and tolerance (0.1%) match design requirements. Check for AEC-Q100 automotive qualification if applicable to the specific ordering code. Ensure compatibility with the SC-70 footprint during PCB layout.

Voltage Reference Selection Notes

Select this component for designs requiring high precision in minimal board space. The 0.1% accuracy and 50ppm/°C stability make it suitable for sensitive analog circuits. Consider the 60µA minimum current requirement for biasing networks. The SC-70 package offers significant size reduction compared to SOT-23 alternatives while maintaining performance.

Voltage Reference Part Context

This part belongs to the LM4050/LM4051 family of precision two-terminal shunt-mode bandgap voltage references. These devices are designed to replace larger discrete zener diodes or bulkier reference ICs. The family supports multiple fixed voltages including 1.225V, 2.500V, and 5.000V, providing flexibility for various reference needs in compact electronics.

Voltage Reference Replacement Considerations

LM4050BIM3-2.0

Voltage Reference FAQ

Does the LM4050AIM3-2.1+T require an external stabilizing capacitor?

No, the LM4050 series does not require an external stabilizing capacitor and ensures stability with any capacitive loads.

What is the maximum operating temperature for this voltage reference?

The specifications are guaranteed over a temperature range of -40°C to +125°C.