LM4132BMFX-3.3/NOPB

Voltage Reference Overview

The LM4132BMFX-3.3/NOPB is a precision series voltage reference from Texas Instruments, housed in a SOT-23-5 surface-mount package. It provides a fixed output voltage of 3.3 V with an initial accuracy of 0.1%. The device features a temperature coefficient of 20 ppm/°C and supports a maximum shunt current of 20 mA. It operates within an input voltage range up to 6 V and functions across a temperature range of -40°C to +125°C.

Voltage Reference Feature Summary

• Delivers high-precision voltage regulation with 0.1% initial accuracy for sensitive analog circuits.
• Incorporates a shutdown enable feature to minimize power consumption during inactive periods.
• Utilizes a compact SOT-23-5 footprint suitable for space-constrained printed circuit board designs.

Voltage Reference Applications

• Portable battery-powered instrumentation requiring low quiescent current
• Data acquisition systems needing stable reference voltages for ADCs
• Medical equipment demanding high accuracy and reliability

Voltage Reference Procurement Notes

Verify the specific suffix against the manufacturer's official datasheet to confirm pinout compatibility and electrical tolerances. Ensure the ordering code matches the required accuracy grade and packaging format. Cross-reference the RoHS compliance status with current environmental regulations before finalizing procurement orders.

Voltage Reference Selection Notes

Select this component when a 3.3 V reference with 0.1% accuracy is required. Compare the 20 ppm/°C drift against system thermal requirements. Evaluate the 20 mA load capability against downstream circuit demands. Consider the SOT-23-5 package constraints for thermal management and layout density.

Voltage Reference Part Context

This part belongs to the LM4132 family of micropower shunt voltage references. The family offers various fixed output voltages and accuracy grades. The BMFX variant specifically denotes the 0.1% accuracy bin within the standard SOT-23-5 form factor, designed for general-purpose precision applications.

Voltage Reference Replacement Considerations

LM4132AMFX-3.3/NOPB (0.05% accuracy) or LM4132CMFX-3.3/NOPB (0.5% accuracy). Verify pinout compatibility and thermal characteristics before substitution.