LM336M-5.0

Overview

The LM336M-5.0 is a precision shunt voltage reference integrated circuit manufactured by National Semiconductor, operating as a 5.0V Zener diode with low temperature coefficient and 0.6 ohm dynamic impedance. It features a third terminal for easy trimming of reference voltage and temperature drift, ensuring guaranteed stability across operating conditions. Designed for fast turn-on and wide current range operation, it supports positive or negative reference configurations due to its shunt regulator topology.

Feature Summary

• Precision 5.0V shunt regulation with low temperature coefficient
• Third terminal enables easy trimming of reference voltage and temperature drift
• Operates as a stable reference from low voltage supplies
• Supports both positive and negative voltage reference applications

Applications

• Digital voltmeter reference circuits
• Power supply regulation systems
• Operational amplifier biasing networks

Procurement Notes

Verify manufacturer documentation confirms National Semiconductor origin and LM336M-5.0 designation. Confirm package type matches SOIC-8 if applicable, as 'M' suffix may indicate surface mount variant. Cross-check datasheet specifications against required tolerance, temperature range, and current limits before procurement.

Selection Notes

Select LM336M-5.0 when precise 5.0V reference with trim capability is needed in shunt configuration. Ensure operating current stays within specified range for optimal performance. Consider thermal management if ambient temperatures approach upper limits. Verify compatibility with existing circuit topology for positive or negative reference use.

Part Context

Part of the LM336 family of programmable shunt regulators, offering fixed 5.0V output with adjustable characteristics via external trimming. The 'M' suffix typically denotes surface-mount packaging, distinguishing it from through-hole variants like LM336Z-5.0. Designed for industrial and commercial applications requiring stable voltage references.

Replacement Considerations

LM336Z-5.0/NOPB (Texas Instruments) offers equivalent 5.0V shunt reference in TO-92 package. LM336-5.0 from Fairchild provides identical electrical characteristics. Verify pinout and package dimensions match before substitution.