LM4132EMFX-4.1/NOPB

Voltage Reference Overview

The LM4132EMFX-4.1/NOPB is a precision shunt voltage reference from Texas Instruments, housed in a five-pin SOT-23 package. It provides a nominal output voltage of 4.1 V with an initial accuracy of 0.5%. The device operates within an input voltage range of 4.5 V to 5.5 V and supports a maximum output current of 20 mA. It features a low dropout voltage of 0.4 V and maintains stability across a temperature range of -40 °C to +125 °C.

Voltage Reference Feature Summary

• Provides stable reference voltage with high initial accuracy
• Operates with low dropout voltage for efficient power usage
• Includes shutdown capability for reduced power consumption

Voltage Reference Applications

• Portable instrumentation requiring precise voltage references
• Battery-powered measurement systems
• Data acquisition circuits

Voltage Reference Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free compliance and RoHS adherence as per manufacturer specifications. Confirm the 'EMFX' designation corresponds to the correct tape-and-reel packaging format intended for surface-mount assembly processes. Ensure the component matches the required thermal and electrical ratings for the target application environment.

Voltage Reference Selection Notes

Select this component when a fixed 4.1 V reference is required with 0.5% initial accuracy. It is suitable for applications needing low quiescent current and compact SOT-23-5 footprint. Consider the 20 mA maximum current limit and 0.4 V dropout voltage when designing the biasing network.

Voltage Reference Part Context

This part belongs to the LM4132 series of precision shunt voltage references. The series offers various output voltages and accuracy grades, including AM (0.05%), BM (0.1%), and EM (0.5%) variants. All share similar low-power characteristics and shutdown functionality within the same small outline package.

Voltage Reference Replacement Considerations

LM4132BMFX-4.1/NOPB offers higher 0.1% accuracy. LM4132AMFX-4.1/NOPB provides 0.05% accuracy. LM4132DMFX-4.1/NOPB offers 1% accuracy. These parts are pin-compatible but differ in initial accuracy specifications.