LM4121AIM5-1.2/NOPB

Voltage Reference Overview

The LM4121AIM5-1.2/NOPB is a precision micropower low dropout voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 1.2V with an initial accuracy of ±0.2% and a temperature coefficient of 50 ppm/°C. The device operates within an input voltage range up to 14V and supports a maximum shunt current of 5mA. It is housed in a compact SOT-23-5 surface-mount package and functions reliably across a temperature range of -40°C to +85°C.

Voltage Reference Feature Summary

• Delivers high-precision voltage regulation with tight initial accuracy tolerances for sensitive analog circuits.
• Features micropower consumption characteristics suitable for battery-operated and space-constrained designs.
• Utilizes a low dropout architecture to maintain stable reference performance under varying input conditions.

Voltage Reference Applications

• Portable instrumentation requiring stable reference voltages
• Battery-powered measurement systems
• Data acquisition signal conditioning

Voltage Reference Procurement Notes

Verify the specific suffix configuration against official Texas Instruments documentation to ensure compatibility with required accuracy and packaging specifications. Confirm that the component meets all necessary environmental and regulatory standards for the intended deployment environment before finalizing procurement decisions.

Voltage Reference Selection Notes

Select this component when a fixed 1.2V reference with high precision is required in a small footprint. Consider the thermal management requirements associated with the SOT-23-5 package and ensure the input voltage remains within the specified operational limits to guarantee long-term stability and performance reliability.

Voltage Reference Part Context

This part belongs to the LM412x series of precision micropower voltage references from Texas Instruments. The series is designed to offer improved performance over previous generations, combining low power consumption with high accuracy in miniature packages suitable for modern electronic applications.

Voltage Reference Replacement Considerations

Consult official substitution guides for compatible alternatives such as the LM4121AIM5X-ADJ/NOPB for adjustable variants or other series members within the Texas Instruments portfolio that match the required electrical specifications and package constraints.