LM4120AIM5-2.0/NOPB

Voltage Reference Overview

The LM4120AIM5-2.0/NOPB is a precision micropower low-dropout voltage reference from Texas Instruments, housed in a SOT-23-5 package. It provides a fixed output voltage of 2.048V with an initial accuracy of ±0.2%. The device operates within an input voltage range of 2V to 12V and draws a supply current of 275µA. It features a temperature coefficient of 50ppm/°C and supports a maximum shunt current of 5mA. The component functions reliably across a temperature range of -40°C to +85°C.

Voltage Reference Feature Summary

• Provides stable reference voltage with high initial accuracy
• Operates as a low-dropout regulator for efficient power usage
• Designed for micropower applications with low supply current consumption

Voltage Reference Applications

• Portable battery-powered instrumentation
• Data acquisition systems requiring precise voltage references
• Microcontroller analog-to-digital converter (ADC) references

Voltage Reference Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free compliance and RoHS status. Confirm the 'M5' designation corresponds to the SOT-23-5 package variant. Check current lifecycle status as some distributors list this part as obsolete or limited availability. Ensure the 2.0V output version matches the circuit design requirements before ordering.

Voltage Reference Selection Notes

Select this component when a fixed 2.048V reference is required in a compact surface-mount package. It is suitable for designs prioritizing low quiescent current alongside moderate precision. Compare against higher accuracy series if tighter tolerance or lower temperature drift is necessary for the specific application environment.

Voltage Reference Part Context

This part belongs to the LM4120 family of precision voltage references. The family offers various fixed output voltages and packages. The AIM5 variant specifically denotes the automotive-grade or industrial-grade performance within the SOT-23-5 form factor, distinguishing it from other pinouts or temperature ranges in the broader LM4120 lineup.

Voltage Reference Replacement Considerations

Direct substitutes include LM4120AIM5-2.0 without the NOPB suffix if lead-free compliance is not critical. Other LM4120 variants with different output voltages may fit mechanically but require circuit adjustment.