The LTL431BLT1G is a precision adjustable shunt regulator manufactured by Leshan Radio. It functions similarly to a Zener diode but offers enhanced precision and adjustability, making it suitable for a wide array of voltage regulation and reference applications. This regulator provides a stable and accurate voltage reference for various electronic circuits.

Applications

• Adjustable voltage regulators
• Voltage references
• Overvoltage protection circuits
• Current sources
• Error amplifiers

Features

• Precision adjustable output voltage
• Low dynamic output impedance
• Sink current capability: 100mA
• Adjustable voltage range: Vref to 36V
• Low temperature coefficient
• Available in various packages (e.g., SOT-23)

Benefits

• High Precision: Provides an accurate and stable voltage reference, ensuring reliable circuit performance.
• Adjustable Output: Allows for flexible voltage regulation to meet specific application requirements.
• Low Output Impedance: Maintains a stable output voltage even under varying load conditions.
• Overvoltage Protection: Can be used to protect circuits from voltage spikes and overvoltage conditions.
• Versatile Application: Suitable for a broad range of voltage regulation and reference applications.

Additional Details

The LTL431BLT1G requires an external resistor divider to set the desired output voltage. The reference voltage (Vref) is typically around 2.5V. The device operates by sinking current from the cathode to the anode, maintaining a constant voltage across the resistor divider. It is commonly used in power supplies, battery chargers, and other voltage-sensitive applications. The device’s low temperature coefficient ensures stable performance over a wide temperature range. The SOT-23 package makes it suitable for surface mount applications.