The IRU431LCL3 is a precision adjustable shunt regulator from International Rectifier, often used as a voltage reference. It offers excellent temperature stability and a sharp turn-on characteristic, making it suitable for various applications requiring precise voltage regulation and control. This three terminal adjustable shunt regulator has a wide operating current range and can be used in place of Zener diodes in many applications, offering enhanced performance and flexibility.

Applications

• Linear Regulators
• Switching Power Supplies
• Voltage Monitors
• Error Amplifiers
• Precision Voltage References

Features

• Adjustable Output Voltage: Vref to 36V
• Low Output Noise
• Low Dynamic Output Impedance
• Sink current capability: 1mA to 100mA
• Typical Temperature Stability: 6mV (typical)

Benefits

• High accuracy and stability for precise voltage regulation
• Improved performance compared to Zener diodes
• Flexibility to set the desired output voltage
• Reduced output noise for sensitive applications
• Enhanced system reliability with integrated protection features

Technical Specifications

The IRU431LCL3 features an adjustable output voltage ranging from the internal reference voltage (Vref, typically 2.5V) up to 36V. It maintains a low dynamic output impedance, ensuring stable operation across a wide range of load currents. The device also exhibits low output noise, making it suitable for noise-sensitive applications. The shunt regulator is available in a SOT-23 package. The recommended operating temperature range is -40°C to +85°C. It requires only two external resistors to set the output voltage. The IRU431LCL3 is an excellent choice for providing a stable and accurate voltage reference in various electronic systems. The typical temperature stability ensures minimal voltage drift over the operating temperature range.