The TL431-SOT89 is an adjustable precision shunt regulator manufactured by UTC (Unisonic Technologies Co., Ltd.). This three-terminal device is widely used in a variety of voltage regulation and reference applications due to its precision and adjustability. The SOT-89 package is a small surface-mount package.
Applications
- Adjustable Power Supplies: Providing a stable and adjustable voltage reference.
- Voltage Monitoring: Detecting overvoltage and undervoltage conditions.
- Error Amplifiers: In feedback control systems for precise voltage regulation.
- Current Limiting Circuits: Providing accurate current limiting.
- Overvoltage Protection Circuits: Protecting sensitive circuits from excessive voltage.
Features
- Adjustable Output Voltage: Output voltage can be set to any value between Vref (typically 2.5V) and 36V.
- Low Output Noise: Provides a stable and clean voltage reference.
- High Precision: Offers accurate voltage regulation and reference.
- Low Dynamic Output Impedance: Ensures stable operation with varying load currents.
- SOT-89 Package: Small surface-mount package for space-constrained applications.
Benefits
- Flexible Voltage Regulation: Adjustable output voltage allows for use in a wide range of applications.
- Stable and Reliable Performance: Low output noise and high precision ensure stable operation.
- Simplified Circuit Design: Simple three-terminal design simplifies circuit implementation.
- Compact Design: SOT-89 package minimizes board space requirements.
- Cost-Effective Solution: Provides a cost-effective solution for voltage regulation and reference.
Additional Details
The TL431-SOT89 has a typical reference voltage of 2.5V and can operate with a cathode voltage up to 36V. It requires two external resistors to set the desired output voltage. The SOT-89 package is ideal for surface-mount applications. The TL431 is a widely used and versatile component that is suitable for many linear regulation and voltage reference circuits.
