LM431BCM3X

The LM431BCM3X is a precision voltage reference and adjustable shunt regulator manufactured by Texas Instruments. It is designed to provide a stable reference voltage for various applications, including power management, voltage regulation, and signal conditioning.

Key Features:

1. Adjustable Output Voltage: The LM431BCM3X allows for an adjustable output voltage ranging from 1.24V to 37V, making it versatile for different circuit requirements. The output voltage can be set using external resistors.

2. High Accuracy: This device boasts a high initial accuracy of ±1% at 25°C, ensuring reliable performance in precision applications.

3. Temperature Stability: The LM431BCM3X features a low temperature coefficient, which enhances its stability over a wide temperature range, typically from -40°C to +125°C.

4. Low Output Impedance: The device has low output impedance, which helps maintain a stable output voltage even under varying load conditions.

5. Wide Supply Voltage Range: It operates over a wide supply voltage range, typically from 2.5V to 36V, allowing it to be used in various power supply designs.

6. Fast Response Time: The LM431BCM3X has a fast response time to changes in load and input voltage, making it suitable for dynamic applications.

7. Compact Package: The device is available in a compact SOT-23 package, which is ideal for space-constrained applications.

8. Applications: Common applications include power supplies, battery chargers, and voltage regulation circuits. It can also be used in feedback loops for operational amplifiers and as a reference in analog-to-digital converters (ADCs).

Pin Configuration:

The LM431BCM3X typically features three pins:

• Ref (Reference): This pin is used to set the output voltage through external resistors.
• Anode: This pin connects to the load and is where the output voltage is taken.
• Cathode: This pin connects to the input voltage supply.

Electrical Characteristics:

• Supply Current: The device typically consumes a low supply current, which contributes to its efficiency.
• Output Voltage Tolerance: The output voltage tolerance is specified to ensure that the device meets the required performance standards in various applications.

Conclusion:

The LM431BCM3X from Texas Instruments is a highly versatile and reliable voltage reference and shunt regulator, suitable for a wide range of electronic applications. Its adjustable output, high accuracy, and compact design make it an excellent choice for engineers looking to implement precise voltage regulation in their circuits.