LM4132DQ1MFT2.5

Voltage Reference Overview

The LM4132DQ1MFT2.5 is an automotive-grade precision low-dropout shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.5 V with an initial accuracy of ±0.4% and a temperature coefficient of 30 ppm/°C. The device operates within an input voltage range up to 5.5 V and supports a maximum shunt current of 20 mA. It functions reliably across an extended temperature range from -40°C to +125°C. Packaged in a compact SOT-23-5 surface-mount case, it meets AEC-Q100 qualification standards for automotive applications.

Voltage Reference Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• Precision series voltage reference architecture
• Low dropout operation capability
• Compact SOT-23-5 surface-mount packaging

Voltage Reference Applications

• Automotive electronic systems requiring stable voltage references
• Data acquisition systems needing high-precision analog references
• Portable instrumentation utilizing low-power shunt regulators

Voltage Reference Procurement Notes

Verify the specific suffix 'DQ1' confirms automotive qualification and the '2.5' indicates the 2.5V output variant. Confirm the 'T' suffix denotes tape-and-reel packaging if reel supply is required. Ensure the manufacturer is Texas Instruments and the package matches SOT-23-5. Cross-reference the full part number against official distributor catalogs to avoid confusion with non-automotive or different voltage variants.

Voltage Reference Selection Notes

Select this component when automotive certification (AEC-Q100) is mandatory for the application. Choose the 2.5V output version specifically if the system design requires this precise reference level. Consider the ±0.4% initial accuracy and 30 ppm/°C temperature coefficient for precision requirements. Verify that the SOT-23-5 package fits the PCB layout constraints and that the 20 mA shunt current capacity meets the load demands.

Voltage Reference Part Context

This part belongs to the LM4132 family of precision shunt voltage references. The LM4132 series offers various fixed output voltages and accuracy grades. The 'Q1' designation signifies automotive qualification, distinguishing it from standard commercial grade parts. The family is designed for applications requiring stable, low-noise voltage references in space-constrained environments.

Voltage Reference Replacement Considerations

Check for other LM4132 variants with different output voltages or accuracy grades. Verify if non-automotive LM4132 parts are acceptable if AEC-Q100 is not strictly required. Compare pinouts and thermal characteristics with alternative shunt references from other manufacturers.