Texas Instruments LM336Z-5.0 Precision 5V Shunt Voltage Reference

The Texas Instruments LM336Z-5.0/NOPB is a precision, monolithic integrated circuit designed as a 5.0V shunt regulator diode. This device functions as a stable, low-temperature-coefficient Zener reference with an exceptionally low dynamic impedance of just 0.6Ω, ensuring a stable output voltage even with fluctuations in operating current. A key feature is the third trim terminal, which allows for precise adjustment of the reference voltage and its temperature coefficient, enabling optimisation for minimal drift in critical applications.

Ideal for precision analogue and digital circuits, this 5.0V reference is exceptionally convenient for systems powered by lower voltage supplies. Its operation as a shunt regulator provides great flexibility, allowing it to be configured as either a positive or negative voltage reference within a circuit. The device boasts a fast turn-on characteristic and supports a wide operating current range from 600µA to 10mA, making it suitable for both power-conscious and performance-oriented designs.

Key Features & Specifications

• Precision Reference: Provides a stable 5.0V output with an initial tolerance of ±1%.
• Low Temperature Coefficient: Features a specified temperature coefficient of 34ppm/°C for stable performance across a 0°C to 70°C operating range.
• Adjustable: The third terminal allows for easy trimming of the reference voltage and temperature coefficient to minimise drift.
• Low Dynamic Impedance: Just 0.6Ω dynamic impedance ensures excellent line regulation.
• Wide Operating Current: Functions reliably with a current draw from 600µA to 10mA.
• Robust Package: Housed in a compact, through-hole TO-226AA (TO-92) package with 3 pins for easy PCB mounting.

With its guaranteed temperature stability and proven reliability, the LM336Z-5.0 is a cornerstone component for designers seeking a high-accuracy voltage reference in