LM4128DMFX-2.5/NOPB

Voltage Reference Overview

The LM4128DMFX-2.5/NOPB is a precision micropower series voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.5 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 draws a typical quiescent current of 60 µA. The maximum input voltage for the series configuration is 6 V.

Voltage Reference Feature Summary

• Provides stable reference voltage with high initial accuracy
• Designed for low power consumption applications
• Capable of operation across extended industrial temperature ranges

Voltage Reference Applications

• Portable instrumentation requiring precise voltage references
• Battery-powered measurement systems
• Data acquisition circuits
• Microcontroller analog-to-digital converter references

Voltage Reference Procurement Notes

Verify the complete part number including the suffix /NOPB to ensure lead-free compliance and specific packaging options. Confirm the SOT-23-5 package type matches your PCB footprint requirements. Check official manufacturer documentation for the latest RoHS status and environmental compliance details before finalizing procurement specifications.

Voltage Reference Selection Notes

Select this component when a fixed 2.5 V reference is required with tight initial accuracy tolerances. Ensure the application current does not exceed the 20 mA maximum shunt current rating. Consider the 60 µA quiescent current for battery life calculations. Verify that the operating temperature range meets the environmental conditions of the target system.

Voltage Reference Part Context

This component belongs to the LM4128 family of precision micropower series voltage references from Texas Instruments. The family offers various fixed output voltages and accuracy grades. The DMF variant indicates a specific tape-and-reel packaging format suitable for automated surface-mount assembly processes.

Voltage Reference Replacement Considerations

LM4128DMX-2.5/NOPB: Same electrical specifications and package, potentially different internal lot or minor manufacturing variation.