LM4132DQ1MFT3.3

Voltage Reference Overview

The LM4132DQ1MFT3.3 is a precision low dropout voltage reference IC manufactured by Texas Instruments, designed for automotive applications. It operates within an input voltage range of 3.7V to 5.5V and delivers a fixed output voltage of 3.3V with an initial accuracy of ±0.4%. The device features a temperature coefficient of 20ppm/°C and supports a maximum shunt current of 20mA. It consumes 100µA of supply current and functions reliably across a junction temperature range of -40°C to +125°C. Packaged in a compact SOT-23-5 surface-mount format, it meets AEC-Q100 qualification standards.

Voltage Reference Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• Precision series voltage reference architecture with low dropout operation
• Compact SOT-23-5 surface-mount package design

Voltage Reference Applications

• Automotive electronic systems requiring stable voltage references
• Data acquisition circuits needing high-precision analog references
• Microcontroller power management subsystems

Voltage Reference Procurement Notes

Verify the specific suffix 'DQ1' confirms AEC-Q100 automotive qualification status. Confirm the 'FT' suffix indicates tape-and-reel packaging configuration. Ensure the '3.3' designation matches the required 3.3V output voltage for the target application circuit design.

Voltage Reference Selection Notes

Select this component when automotive certification is mandatory for voltage reference stability. The SOT-23-5 package suits space-constrained PCB layouts. Verify that the 20mA load capability and 100µA quiescent current align with system power budget requirements.

Voltage Reference Part Context

This part belongs to the LM4132 family of precision low dropout voltage references from Texas Instruments. The family offers various fixed output voltages and accuracy grades. The DQ1 variant specifically targets automotive electronics, ensuring robustness against harsh environmental conditions compared to standard commercial grade counterparts.

Voltage Reference Replacement Considerations

Check for other LM4132 variants with different output voltages or accuracy grades if electrical parameters differ. Verify pinout compatibility before substituting with non-Texas Instruments equivalents.