LM4132CQ1MFR2.5

Voltage Reference Overview

The LM4132CQ1MFR2.5 is an automotive-grade precision low-dropout series 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 format, it meets AEC-Q100 qualification standards for automotive applications.

Voltage Reference Feature Summary

• Automotive-grade reliability certified under the AEC-Q100 standard
• Precision series regulation architecture ensuring stable output
• Low dropout operation suitable for battery-powered systems
• Compact SOT-23-5 package design for space-constrained layouts

Voltage Reference Applications

• Automotive electronic control units requiring precise voltage references
• Data acquisition systems utilizing analog-to-digital converters
• Portable instrumentation powered by single-cell batteries
• Industrial sensor interfaces demanding high stability

Voltage Reference Procurement Notes

Verify the specific suffix codes against official Texas Instruments documentation to confirm exact tolerance and packaging specifications. Ensure compatibility with automotive environmental requirements before integration. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability. Confirm that the selected variant matches the required output voltage and accuracy class for the intended application design.

Voltage Reference Selection Notes

Select this component when automotive certification and high precision are mandatory. The 0.4% initial accuracy suits applications requiring tight voltage tolerances without external trimming. The 30 ppm/°C temperature coefficient ensures performance stability across wide thermal variations. Consider the 20 mA shunt current limit when designing bias networks to maintain regulation efficiency.

Voltage Reference Part Context

This device belongs to the LM4132 family of precision voltage references designed for robust performance in demanding environments. The LM4132 series offers various output voltages and accuracy grades to support diverse power management needs. As an automotive-qualified part, it integrates seamlessly into vehicle electronics where long-term reliability and strict quality standards are enforced by industry regulations.

Voltage Reference Replacement Considerations

LM4132DQ1MFR2.5