LM4128BQ1MF2.0/NOPB

Voltage Reference Overview

The LM4128BQ1MF2.0/NOPB is an automotive-grade series precision voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.048 V with an initial accuracy of 0.2%. The device operates within a temperature range of -40°C to +125°C and features a temperature coefficient of 100 ppm/°C. It supports a maximum input voltage of 6 V and a maximum shunt current of 20 mA, while consuming only 60 µA of supply current. Packaged in a SOT-23-5 surface-mount case, it meets AEC-Q100 qualification standards for automotive applications.

Voltage Reference Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• High precision series voltage reference architecture
• Ultra-low power consumption suitable for battery-operated systems

Voltage Reference Applications

• Automotive electronic control units requiring stable voltage references
• Precision analog-to-digital converter reference inputs
• Data acquisition systems in harsh thermal environments

Voltage Reference Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free packaging compliance when sourcing. Confirm the 'BQ1' designation aligns with required automotive reliability grades. Ensure the 'MF2.0' code matches the exact 2.048 V output requirement. Check that the SOT-23-5 package footprint matches the target PCB design constraints before finalizing procurement orders.

Voltage Reference Selection Notes

Select this component when a fixed 2.048 V reference with 0.2% initial accuracy is required. Choose the BQ1 variant specifically for automotive applications demanding AEC-Q100 certification. Consider the 100 ppm/°C temperature coefficient against system drift requirements. Verify that the 60 µA quiescent current fits within the available power budget for the application.

Voltage Reference Part Context

This part belongs to the LM4128 family of micropower series voltage references. It shares architectural similarities with non-automotive variants but includes enhanced qualification for automotive use. The device complements other Texas Instruments PMIC solutions by providing a stable reference node for precision measurement circuits.

Voltage Reference Replacement Considerations

LM4128AQ1MF2.0/NOPB offers higher 0.1% accuracy. LM4128CMF-2.0/NOPB provides standard commercial grade performance. LM4128DQ1MF2.0/NOPB represents another automotive option within the same series.