LM336MX-5.0

Overview

The LM336MX-5.0 is a precision shunt voltage reference from the LM336 series, manufactured by Texas Instruments. It provides a nominal output voltage of 5.0V with an initial accuracy of ±1%. The device operates as a low temperature coefficient Zener diode with a dynamic impedance of 0.6 ohms. It supports a wide operating current range and features a trim terminal for adjusting voltage and temperature drift. The component is housed in an SOIC-8 surface-mount package.

Feature Summary

• Precision 5.0V shunt regulation with low temperature coefficient
• Adjustable reference voltage via dedicated trim terminal
• Low dynamic impedance for stable performance
• Wide operating current range capability

Applications

• Digital voltmeter reference sources
• Operational amplifier circuit biasing
• Power supply voltage references
• Data acquisition systems

Procurement Notes

Verify the specific suffix MX against official datasheets to confirm the SOIC-8 package type and tape-and-reel packaging configuration. Ensure the part number matches the exact manufacturer designation to avoid confusion with through-hole variants like the TO-92 package. Confirm RoHS compliance status and lead-free specifications directly with the supplier or manufacturer documentation prior to ordering.

Selection Notes

Select this component when a precise 5.0V reference is required in a surface-mount application. The adjustable nature allows for calibration of temperature drift. Consider the thermal management requirements associated with the SOIC-8 package and ensure the operating current remains within the specified limits to maintain accuracy and stability during operation.

Part Context

The LM336 series includes various packages such as TO-92 and SOIC. The LM336MX-5.0 specifically denotes the surface-mount variant. This family serves as a cost-effective solution for applications needing a stable voltage reference without the complexity of active regulators. The 5.0V option is commonly used for interfacing with logic levels and ADCs.

Replacement Considerations

LM336Z-5.0/NOPB (TO-92 package)

FAQ

What is the purpose of the third terminal on the LM336MX-5.0?

The third terminal allows for trimming the reference voltage and minimizing the temperature coefficient for higher precision applications.

Can the LM336MX-5.0 be used as a negative voltage reference?

Yes, because it operates as a shunt regulator, it can be configured to provide either a positive or negative voltage reference.