LM4050QBEM3-5.0/NOPB

Voltage Reference Overview

The LM4050QBEM3-5.0/NOPB is a micropower shunt voltage reference manufactured by Texas Instruments, designed for precision applications requiring stable output voltages. It features a fixed 5.0 V output with an initial accuracy of 0.2% and a temperature coefficient of 50 ppm/°C. The device operates within a junction temperature range of -40°C to +125°C and supports a maximum cathode current of 15 mA. Packaged in a compact SOT-23-3 surface-mount case, it meets AEC-Q100 automotive qualification standards. This component serves as a reliable reference source for analog circuits where low power consumption and high stability are critical requirements.

Voltage Reference Feature Summary

• Provides a fixed 5.0 V output with 0.2% initial accuracy
• Operates over an extended temperature range from -40°C to +125°C
• Supports up to 15 mA cathode current for load regulation
• Automotive qualified under AEC-Q100 standards

Voltage Reference Applications

• Precision data acquisition systems
• Battery-powered instrumentation
• Automotive sensor signal conditioning
• Portable medical devices

Voltage Reference Procurement Notes

Verify the exact suffix 'QBEM3' against official Texas Instruments documentation to confirm package type and specific grade variations. Ensure compatibility with existing PCB footprints for SOT-23-3 packages. Cross-reference datasheet revisions for any updates to electrical characteristics or recommended operating conditions before finalizing procurement specifications.

Voltage Reference Selection Notes

Select this component when a 5.0 V reference with 0.2% accuracy is required in space-constrained designs. Consider the 50 ppm/°C temperature coefficient for thermal stability needs. Verify that the 15 mA current limit suffices for the application's load requirements. Confirm AEC-Q100 compliance if the design targets automotive environments.

Voltage Reference Part Context

This part belongs to the LM4050-N family of micropower shunt voltage references. The family offers various fixed output voltages and accuracy grades. The 'Q' prefix indicates automotive qualification, while 'B' typically denotes tighter initial accuracy compared to standard grades. These devices are widely used in industrial and automotive electronics requiring precise voltage referencing.

Voltage Reference Replacement Considerations

Check for direct pin-compatible alternatives within the LM4050 series with different voltage outputs or accuracy grades. Verify electrical parameter overlaps for any cross-references. Ensure substitute components meet the same AEC-Q100 and temperature range requirements.