LM4132DQ1MFR2.5

Voltage Reference Overview

The LM4132DQ1MFR2.5 is an automotive-grade precision low-dropout voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.5 V with an initial accuracy of ±0.4%. The device operates within a supply voltage range up to 5.5 V and supports a maximum shunt current of 20 mA. It features a temperature coefficient of 30 ppm/°C and functions reliably across a junction temperature range from -40°C to +125°C. Packaged in a compact SOT-23-5 surface-mount format, 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 powered by single-supply sources

Voltage Reference Procurement Notes

Verify the complete part number including suffixes such as 'R2.5' against official Texas Instruments documentation to ensure correct output voltage and package configuration. Confirm AEC-Q100 qualification status if automotive compliance is required. Check datasheet revisions for any updates regarding pin configurations or electrical characteristics before finalizing procurement specifications.

Voltage Reference Selection Notes

Select this component when automotive qualification and high precision are mandatory. The 2.5 V output suits applications requiring specific reference levels without external trimming. Ensure input voltage remains within the specified maximum limit of 5.5 V. Consider the 20 mA shunt current capability for load requirements. Verify thermal management needs given the wide operating temperature range.

Voltage Reference Part Context

This device belongs to the LM4132 family of precision low-dropout voltage references. The 'Q1' designation indicates automotive qualification. The 'D' suffix typically denotes a specific accuracy grade, while 'R2.5' specifies the 2.5 V output version. It is designed for space-constrained designs requiring high stability and low noise performance in demanding environments.

Voltage Reference Replacement Considerations

Consult official substitution guides for compatible alternatives. Verify pin compatibility and electrical parameter alignment with potential replacement parts. Ensure any substitute maintains AEC-Q100 certification if automotive use is intended.