LM4120AIM5X-5.0/NOPB

Voltage Reference Overview

The LM4120AIM5X-5.0/NOPB is a precision micropower series voltage reference manufactured by Texas Instruments, housed in a five-pin SOT-23 package. It provides a fixed nominal output voltage of 5 V with an initial accuracy of ±0.2%. The device operates within an input voltage range of 2 V to 12 V and supports a maximum shunt current of 5 mA while consuming only 275 µA of supply current. It features low noise characteristics, specified at 20 µVp-p from 0.1 Hz to 10 Hz and 36 µVp-p from 10 Hz to 10 kHz. The unit functions reliably across a temperature range of -40°C to +85°C.

Voltage Reference Feature Summary

• Provides high-precision fixed voltage output with tight initial tolerance
• Operates with extremely low quiescent current for power-sensitive designs
• Delivers low noise performance suitable for sensitive analog circuits
• Utilizes compact surface-mount packaging for space-constrained applications

Voltage Reference Applications

• Portable battery-powered instrumentation systems
• Precision data acquisition and measurement equipment
• Handheld metering devices requiring stable reference voltages
• Medical diagnostic equipment with strict power constraints

Voltage Reference Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure compatibility with required operating conditions. Confirm that the component meets all necessary environmental and safety standards for the intended deployment environment. Cross-reference part numbers carefully as minor variations may exist between manufacturing revisions or regional specifications.

Voltage Reference Selection Notes

Select this component when a stable 5 V reference is required alongside minimal power consumption. Ensure the application input voltage remains within the specified operational limits to maintain regulation. Consider the thermal environment to guarantee performance stability across the full operating temperature range without exceeding maximum current ratings.

Voltage Reference Part Context

This device belongs to the LM4120 family of micropower voltage references designed for high accuracy and low power operation. The series offers various fixed output options and accuracy grades to suit different precision requirements. These components are widely utilized in portable electronics where battery life and signal integrity are critical design factors.

Voltage Reference Replacement Considerations

Public confirmed substitute part numbers: LM4120AIM5-5.0/NOPB.