LM4132DMFX-3.0

Voltage Reference Overview

The LM4132DMFX-3.0 is a precision series voltage reference manufactured by Texas Instruments, housed in a SOT-23 (5) package. It provides a fixed output voltage of 3 V with an initial accuracy of 0.05% and a temperature coefficient of 10 ppm/°C. The device operates within a junction temperature range of -40°C to +125°C and supports a maximum load current of 20 mA. Supply current is specified at 60 µA, reducing to 3 µA in shutdown mode via the enable pin. Input voltage ranges from VREF + 400 mV to 5.5 V.

Voltage Reference Feature Summary

• EEPROM-based curvature correction for high accuracy
• Low dropout operation without output capacitor requirement
• Dedicated enable pin for low-power shutdown control

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 'DMFX' against official documentation to confirm tape-and-reel packaging and exact grade specifications. Ensure compatibility with required input voltage ranges and thermal dissipation limits for the target application environment.

Voltage Reference Selection Notes

Select this component when high precision and low power consumption are critical. The CMOS architecture offers cost-effectiveness compared to laser-trimmed bipolar references while maintaining comparable performance levels suitable for space-constrained designs.

Voltage Reference Part Context

This part belongs to the LM4132 family of precision voltage references designed for applications requiring stable voltage sources. The family utilizes CMOS technology with EEPROM registers to correct curvature and temperature coefficients, overcoming assembly shifts common in plastic packages.

Voltage Reference Replacement Considerations

LM4132AMFX-3.0/NOPB

Voltage Reference FAQ

Does the LM4132 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 enter a shutdown mode with reduced supply current of 3 µA when driven low.