LM4132CMF-2.5

Voltage Reference Overview

The LM4132CMF-2.5 is a precision low dropout voltage reference manufactured by Texas Instruments, housed in a 5-pin SOT-23 package. It provides a fixed output voltage of 2.5 V with an initial accuracy of ±0.2%. The device operates within a junction temperature range of -40°C to +125°C and features a maximum input supply voltage of 5.5 V. Key electrical characteristics include a typical supply current of 60 µA, a shutdown current of 3 µA when enabled, and a maximum load current capability of 20 mA.

Voltage Reference Feature Summary

• Features an enable pin that allows for a low-power shutdown mode with minimal current consumption.
• Capable of delivering up to 20 mA of output current without requiring an external buffer amplifier or output capacitor.
• Utilizes EEPROM registers for curvature correction and temperature coefficient trimming on a CMOS band-gap architecture.

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific grade suffix (e.g., CMF) against the datasheet to confirm the exact initial accuracy and temperature coefficient specifications required for your design. Ensure the ordering code matches the desired voltage option and packaging format. Confirm AEC-Q100 qualification status if automotive compliance is mandatory for the application environment.

Voltage Reference Selection Notes

Select this component when space-constrained designs require a series reference with high precision and low quiescent current. The SOT-23-5 package is suitable for applications where board real estate is limited. Consider the dropout voltage requirements relative to the input supply and load current to ensure stable regulation under all operating conditions.

Voltage Reference Part Context

This part belongs to the LM4132 family of precision voltage references from Texas Instruments. The family includes various voltage options ranging from 1.8 V to 4.096 V and multiple accuracy grades (A through E). The LM4132 series is designed to compete with laser-trimmed bipolar references while offering cost-effective CMOS technology advantages.

Voltage Reference Replacement Considerations

LM4132CMF-2.5/NOPB