LM4128BMFX-3.0/NOPB

Voltage Reference Overview

The LM4128BMFX-3.0/NOPB is a precision micropower series voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 3.0 V with an initial accuracy of 0.2%. The device operates within a temperature range of -40°C to +125°C and features a maximum shunt current of 20 mA. It is housed in a SOT-23-5 surface-mount package and supports a maximum input voltage of 6 V.

Voltage Reference Feature Summary

• Provides stable, precise reference voltage for analog circuits
• Operates efficiently at low quiescent currents
• Designed for high stability across wide temperature ranges

Voltage Reference Applications

• Portable instrumentation requiring low power consumption
• Battery-powered measurement systems
• Data acquisition systems needing accurate voltage references

Voltage Reference Procurement Notes

Verify the complete part number including suffixes such as NOPB and packaging codes like FX against official Texas Instruments documentation. Confirm RoHS compliance status and ensure the specific revision matches design requirements before procurement.

Voltage Reference Selection Notes

Select this component when a 3.0 V reference with 0.2% initial accuracy is required. Ensure the application stays within the 6 V maximum input voltage limit. Consider the SOT-23-5 package constraints for PCB layout and thermal management during selection.

Voltage Reference Part Context

This part belongs to the LM4128 family of precision micropower shunt voltage references. It shares functional similarities with other variants in the series but is distinguished by its specific 3.0 V output voltage and 0.2% accuracy grade. The family is designed for applications demanding high precision in compact packages.

Voltage Reference Replacement Considerations

LM4128BMF-3.0/NOPB serves as a direct pin-compatible alternative with identical electrical specifications. Verify that any substitute maintains the same SOT-23-5 footprint and performance characteristics.