LM4120AIM5X-3.0/NOPB

Voltage Reference Overview

The LM4120AIM5X-3.0/NOPB is a precision micropower low dropout voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 3V 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 50 PPM/°C and functions reliably across a temperature range of -40°C to +85°C. Packaged in a compact SOT-23-5 surface-mount format, it is designed for space-constrained applications requiring stable voltage regulation.

Voltage Reference Feature Summary

• Provides high-precision voltage regulation with tight initial accuracy tolerances
• Operates as a low dropout regulator suitable for battery-powered systems
• Delivers micropower performance with minimal quiescent current consumption

Voltage Reference Applications

• Portable instrumentation circuits requiring stable reference voltages
• Battery-operated measurement devices needing low power consumption
• Data acquisition systems utilizing analog-to-digital converters

Voltage Reference Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure compatibility with design requirements. Confirm RoHS compliance status and lead times directly with authorized distributors. Check for end-of-life notifications or alternative part recommendations from the manufacturer before finalizing procurement plans.

Voltage Reference Selection Notes

Select this component when precise voltage stability is critical under varying load conditions. Consider the SOT-23-5 package for limited board space constraints. Ensure the input voltage remains within the specified operational limits to maintain regulation performance and prevent excessive power dissipation during continuous operation.

Voltage Reference Part Context

This device belongs to the LM4120 series of precision voltage references. The series is characterized by its ability to provide accurate reference voltages in small packages. It serves as a fundamental building block for analog signal processing chains where noise immunity and long-term stability are essential for maintaining system accuracy.

Voltage Reference Replacement Considerations

Consult official substitution guides for compatible alternatives. Verify pinout compatibility and electrical parameter alignment before replacing existing components in established designs.