LM4132EMF-3.0

Voltage Reference Overview

The LM4132EMF-3.0/NOPB 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 ±0.5%. The device operates within a temperature range of -40°C to +125°C and features a maximum temperature coefficient of 30 ppm/°C. 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 curvature correction for high precision
• Low dropout operation without external capacitors
• Enable pin for low-power shutdown mode

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free and RoHS compliance status. Confirm the 'E' grade designation matches the required 0.5% accuracy specification. Ensure the SOT-23-5 footprint aligns with the target PCB layout constraints before finalizing procurement orders.

Voltage Reference Selection Notes

Select this component when a fixed 3 V reference is needed in space-constrained designs. The CMOS architecture offers cost advantages over laser-trimmed bipolar references. Consider the 20 mA load capability if driving moderate loads directly without buffering amplifiers.

Voltage Reference Part Context

This part belongs to the LM4132 family of precision voltage references. The family includes various grades (A through E) offering different accuracy levels from 0.05% to 0.5%. Other voltage options include 1.8 V, 2.048 V, 2.5 V, 3.3 V, and 4.096 V within the same SOT-23 package form factor.

Voltage Reference Replacement Considerations

LM4132AMFX-3.0/NOPB: Offers higher 0.05% accuracy grade.

Voltage Reference FAQ

Does the LM4132 require an output capacitor?

No, the LM4132 is stable with low-ESR ceramic capacitors and does not strictly require an output capacitor or buffer amplifier for operation.

How is the shutdown mode activated?

The shutdown mode is activated by pulling the Enable (EN) pin to a logic low level, reducing supply current to approximately 3 µA.