LM4120AIM5X-1.8

Voltage Reference Overview

The LM4120AIM5X-1.8 is a precision micropower low-dropout voltage reference from Texas Instruments, housed in a five-pin SOT-23 package. It provides a fixed output voltage of 1.8V with an initial accuracy of ±0.2%. The device operates within an input voltage range of 2V to 12V and supports a maximum shunt current of 5mA. It features a temperature coefficient of 50ppm/°C and 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 series regulator with low dropout capability
• Designed for micropower applications with minimal supply current

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix 'X' indicates tape-and-reel packaging configuration. Confirm the '-1.8' designation matches the required 1.8V output level. Ensure the 'A' grade meets the ±0.2% accuracy requirement. Check RoHS compliance status if restricted substances are mandated by the target application standards.

Voltage Reference Selection Notes

Select this component when a fixed 1.8V reference is needed in a compact SOT-23 form factor. It is suitable for designs prioritizing low power consumption alongside moderate precision requirements. Consider the 50ppm/°C drift if operating in environments with significant thermal fluctuations.

Voltage Reference Part Context

This part belongs to the LM4120 family of precision voltage references. The family includes various output voltages and packages. The AIM5X variant specifically denotes the automotive-grade or industrial-grade A-series performance in the SOT-23-5 surface-mount package with reel packaging.

Voltage Reference Replacement Considerations

LM4120AIM5-1.8/NOPB: Direct equivalent with different packaging format.