LM336BM-5.0

Overview

The LM336BM-5.0 is a precision shunt voltage reference integrated circuit manufactured by National Semiconductor, now part of Texas Instruments. It operates as a low temperature coefficient 5.0V Zener diode with a dynamic impedance of 0.6 ohms. The device features an adjustable output range from 4V to 6V via a third terminal, allowing for easy trimming of the reference voltage and temperature coefficient. It supports a wide operating current range and offers ±1% initial tolerance.

Feature Summary

• Precision 5.0V shunt regulation with low temperature coefficient
• Adjustable output voltage range from 4V to 6V using the third terminal
• Low dynamic impedance of 0.6 ohms for stable performance
• Easily trimmed for minimum temperature drift

Applications

• Digital voltmeters requiring precise voltage references
• Power supply circuits needing stable low-voltage references
• Operational amplifier biasing and reference circuits

Procurement Notes

Verify the manufacturer designation, as National Semiconductor was acquired by Texas Instruments. Ensure the specific suffix matches the required package type (e.g., SOIC) and temperature grade. Confirm that the 'NOPB' or equivalent lead-free designation is present if environmental compliance is required for your assembly process.

Selection Notes

Select this component when a fixed 5.0V reference is needed but adjustability for calibration is desired. The TO-92 or SOIC packages offer flexibility for through-hole or surface-mount designs. Consider the wide operating current range if the application involves varying load conditions without significant voltage drop.

Part Context

The LM336 series is a family of programmable shunt regulators. The LM336BM-5.0 specifically denotes the 5.0V version in a plastic small-outline package (SOIC). It shares core characteristics with the LM136 and LM236 variants, differing primarily in temperature ranges and packaging options within the same functional architecture.

Replacement Considerations

LM336Z-5.0/NOPB

FAQ

How is the output voltage adjusted on the LM336BM-5.0?

The output voltage can be adjusted between 4V and 6V by utilizing the third terminal (adjust) on the IC, which allows for external trimming.

What is the dynamic impedance of the LM336BM-5.0?

The device has a low dynamic impedance of 0.6 ohms, contributing to its stability as a voltage reference.