LM4132CMFX-3.0

Voltage Reference Overview

The LM4132CMFX-3.0 is a precision series voltage reference manufactured by Texas Instruments, featuring a fixed output of 3 V with an initial accuracy of ±0.2%. It operates within a junction temperature range of -40°C to +125°C and utilizes a CMOS band-gap architecture with EEPROM registers for curvature correction. The device supports a maximum input voltage of 5.5 V and delivers up to 20 mA of load current while consuming only 60 µA of supply current. It includes an enable pin that reduces shutdown current to 3 µA and is housed in a compact SOT-23-5 package.

Voltage Reference Feature Summary

• EEPROM-based calibration corrects curvature, temperature coefficient, and accuracy on a CMOS band-gap architecture.
• Integrated enable pin allows switching between active operation and ultra-low power shutdown mode.
• Capable of delivering high load currents without requiring external buffer amplifiers or output capacitors.

Voltage Reference Applications

• Instrumentation and process control systems
• Data acquisition systems
• Portable battery-powered equipment
• Precision regulators

Voltage Reference Procurement Notes

Verify the specific suffix 'CMFX' against official documentation to confirm it denotes the standard commercial grade variant rather than the automotive qualified version. Ensure the ordering code matches the required tolerance and packaging format before finalizing procurement specifications.

Voltage Reference Selection Notes

Select this component when space constraints require a small SOT-23 footprint alongside high precision requirements. It is suitable for designs needing low quiescent current and high load drive capability without external buffering components.

Voltage Reference Part Context

This part belongs to the LM4132 family of precision voltage references. The family offers various grades (A through E) providing different combinations of accuracy and temperature coefficients. The CMFX designation indicates a specific output voltage option within this broader product line.

Voltage Reference Replacement Considerations

LM4132CMF-3.0/NOPB