LM4132BMFX-3.0

Voltage Reference Overview

The LM4132BMFX-3.0 is a precision series voltage reference manufactured by Texas Instruments in a SOT-23-5 package. It provides a fixed output voltage of 3 V with an initial accuracy of ±0.1%. The device operates within a temperature range of -40°C to +125°C and features a maximum temperature coefficient of 20 ppm/°C across the full operating range. It supports a maximum input voltage of 5.5 V and delivers up to 20 mA of output current while consuming only 60 µA of supply current.

Voltage Reference Feature Summary

• EEPROM-based calibration for high accuracy
• Low dropout operation capability
• Integrated enable pin for shutdown control

Voltage Reference Applications

• Data acquisition systems
• Portable battery-powered equipment
• Precision regulators

Voltage Reference Procurement Notes

Verify the specific suffix 'BMFX' against the manufacturer's datasheet to confirm the B-grade accuracy, reel packaging format, and 3.0 V output voltage designation. Ensure the component matches the required SOT-23-5 footprint and lead-free specifications before finalizing procurement orders.

Voltage Reference Selection Notes

Select this component when a fixed 3 V reference with 0.1% initial accuracy is required. It is suitable for space-constrained designs due to its small SOT-23-5 package. Consider the 20 mA load current capability and low quiescent current for power-sensitive applications.

Voltage Reference Part Context

This part belongs to the LM4132 family of CMOS band-gap voltage references. The family utilizes EEPROM registers for curvature correction and temperature compensation, allowing for package-level programming that overcomes assembly shifts typically seen in laser-trimmed bipolar references.

Voltage Reference Replacement Considerations

LM4132AMFX-3.0/NOPB (A-grade variant)

Voltage Reference FAQ

Does the LM4132BMFX-3.0 require an output capacitor?

No, the LM4132 does not require an output capacitor or buffer amplifier for stability.

What is the function of the EN pin?

The EN pin allows the device to be placed into a low-power shutdown mode with reduced supply current.