LM4051CIM3X-ADJ/NOPB

Voltage Reference Overview

The LM4051CIM3X-ADJ/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments. It operates within an output voltage range of 1.24 V to 10 V and features an initial accuracy of 0.5%. The device exhibits a temperature coefficient of 50 ppm/°C, with a maximum shunt current of 12 mA and a minimum operating current of 60 µA. It supports surface mount installation in a SOT-23-3 package, functioning reliably across a temperature range of -40°C to +85°C.

Voltage Reference Feature Summary

• Adjustable output voltage capability spanning from 1.24 V to 10 V for flexible circuit design
• Micropower operation with low minimum shunt current requirement of 60 µA
• Precision performance characterized by 0.5% initial accuracy and 50 ppm/°C temperature stability

Voltage Reference Applications

• Portable battery-powered instrumentation requiring low quiescent current
• Data acquisition systems needing stable reference voltages
• Microprocessor supply monitoring circuits

Voltage Reference Procurement Notes

Verify the specific suffix configuration against official Texas Instruments documentation to ensure compatibility with required accuracy and thermal specifications. Confirm that the SOT-23-3 package dimensions align with the target PCB footprint. Cross-reference the datasheet parameters for shunt current limits and operating temperature ranges to validate suitability for the intended environmental conditions before finalizing procurement orders.

Voltage Reference Selection Notes

Select this component when adjustable voltage referencing is required alongside strict power consumption constraints. The 0.5% accuracy and 50 ppm/°C drift offer sufficient precision for general-purpose analog applications. Ensure the design accommodates the 12 mA maximum shunt current limit and verify that the input voltage exceeds the desired output setting by the necessary headroom for proper regulation within the specified temperature range.

Voltage Reference Part Context

This part belongs to the LM4051 series of precision micropower shunt voltage references from Texas Instruments. It shares the SOT-23-3 form factor with other family members but distinguishes itself through its adjustable output architecture. The series is designed for applications demanding high stability and low power consumption in compact surface-mount packages.

Voltage Reference Replacement Considerations

Direct substitutes include LM4051AIM3X-ADJ/NOPB for higher 0.1% accuracy or LM4051BIM3X-ADJ/NOPB for alternative tolerance grades. Verify pinout compatibility and thermal characteristics when transitioning between these variants.