Product Overview

The LM431ACM/NOPB is a precision programmable shunt voltage reference IC designed and manufactured by Texas Instruments. This versatile three-terminal adjustable regulator offers an output voltage that can be set to any value between V<sub>REF (approximately 2.5 volts) and 36 volts by selecting two external resistors. These features make the LM431ACM/NOPB an excellent choice for a wide range of applications in the electronics industry.

Key Features

• Adjustable Output Voltage: The LM431ACM/NOPB offers an adjustable output voltage range from 2.5V to 36V, providing flexibility for various applications.
• High Stability: It exhibits exceptional stability over a wide range of environmental conditions, ensuring reliable performance.
• Low Temperature Coefficient: The temperature coefficient is typically 50 ppm/°C, which contributes to its precise voltage regulation across temperature variations.
• Low Dynamic Output Impedance: The dynamic output impedance of 0.2 ohms combined with a sharp turn-on characteristic makes this device an excellent replacement for zener diodes in many applications.
• Surface-Mount Package: The LM431ACM/NOPB comes in an SOIC-8 package, suitable for automated assembly processes and space-constrained applications.
• Green Product: It is a "green" product, free from lead (Pb) and other environmentally sensitive materials, adhering to the RoHS directive.

Applications

The LM431ACM/NOPB is widely used across the electronics industry due to its versatility and reliability. Its typical applications include:

• Adjustable voltage and current references
• Power supplies
• Battery chargers
• Switching power supplies
• Digital voltmeters
• Precision current regulators

Quality and Reliability

Texas Instruments is known for its commitment to quality and reliability, and the LM431ACM/NOPB is no exception. This product is designed to meet the rigorous standards of the electronics industry, ensuring a long operational life and consistent performance.

With its adjustable output voltage, high stability, and low dynamic output impedance, the LM431ACM/NOPB is an ideal solution for designers looking for a reliable and flexible voltage reference source.