LM4050BIM3-4.1/NOPB

Voltage Reference Overview

The LM4050BIM3-4.1/NOPB is a micropower shunt voltage reference manufactured by Texas Instruments, designed for precision applications requiring stable voltage regulation in compact form factors. It delivers a fixed output voltage of 4.096 V with an initial accuracy of ±0.2% and a temperature coefficient of 50 ppm/°C. The device operates within a maximum shunt current of 15 mA and supports a wide operating temperature range from -40°C to +85°C. Packaged in a surface-mount SOT-23-3 case, it integrates into power management circuits as a reliable reference source.

Voltage Reference Feature Summary

• Provides precise shunt voltage regulation with low micropower consumption suitable for battery-operated systems.
• Ensures high stability across temperature variations through a controlled temperature coefficient specification.
• Offers tight initial accuracy tolerance for maintaining signal integrity in measurement and control loops.

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix configuration against official Texas Instruments documentation to confirm pinout compatibility and electrical tolerances. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.

Voltage Reference Selection Notes

Select this component when a fixed 4.096 V reference with ±0.2% accuracy is required in a small SOT-23 package. Consider the 50 ppm/°C temperature coefficient for thermal environments up to 85°C. Evaluate the 15 mA maximum shunt current capability against circuit load requirements to ensure proper biasing and regulation performance.

Voltage Reference Part Context

This part belongs to the LM4050 series of micropower shunt voltage references from Texas Instruments. It serves as a precision alternative to standard zener diodes, offering superior temperature stability and lower noise characteristics. The NOPB suffix indicates lead-free construction compliant with environmental directives.

Voltage Reference Replacement Considerations

LM4050AIM3-4.1/NOPB offers tighter initial accuracy (±0.1%). LM4050CIM3X-4.1/NOPB provides extended temperature range up to 125°C. TL4050B41IDBZR is a similar shunt reference in a different package format.