The LM431AIM3 from Texas Instruments is a versatile and precision adjustable shunt regulator that provides a reliable solution for voltage regulation needs. Built with an adjustable zener reference, this regulator is designed to maintain high stability and accuracy over a wide range of environmental conditions and operational parameters.
Key Features
- Voltage Range: The LM431AIM3 operates with a wide nominal voltage range, making it suitable for various applications.
- Adjustability: Its output voltage can be set to any value between Vref (approximately 2.5V) and 36 volts with the use of two external resistors.
- Low Dynamic Output Impedance: The dynamic output impedance of the device is a low equivalent to a typical 0.2 Ohm resistor, ensuring stability and precision.
- Temperature Compensated: For applications requiring a consistent performance, the LM431AIM3 is temperature compensated, which contributes to its overall reliability.
- Surface-Mount Package: The device comes in a small SOT-23 surface-mount package, which is ideal for space-constrained applications.
Applications
The LM431AIM3 is a versatile component that can be employed in a broad range of applications. It is commonly used in power supplies, battery chargers, and voltage monitoring systems. Its precision and adjustability also make it an excellent choice for use in reference voltage applications and as a voltage monitor or controller in various electronic circuits.
Technical Specifications
Parameter
Value
Reference Voltage
2.495V to 36V
Package Type
SOT-23
Temperature Range
-40°C to +85°C
Dynamic Output Impedance
0.2 Ohm (typical)
Overall, the LM431AIM3 is a highly reliable and efficient solution for designers looking to implement an adjustable shunt regulator in their systems. Its precision, coupled with the flexibility offered by Texas Instruments' design, ensures that it can meet the needs of a wide array of applications.
