The LTL431ATLT1G is a precision adjustable shunt regulator manufactured by Leshan Radio. It is commonly used in voltage regulation and error amplifier circuits due to its stable reference voltage and low temperature coefficient. It's a versatile component suitable for a variety of analog and power applications.

Applications

• Switching power supplies
• Voltage references
• Linear regulators
• Error amplifiers
• Overvoltage protection circuits
• Battery chargers

Features

• Adjustable Output Voltage: The output voltage can be set to any value between Vref (typically 2.5V) and 36V using two external resistors.
• Low Temperature Coefficient: Ensures stable output voltage over a wide temperature range.
• Low Output Noise: Minimizes noise in the regulated output voltage.
• High Precision: Provides accurate voltage regulation.
• Sink Current Capability: Can sink a significant amount of current, making it suitable for various applications.
• Low Dynamic Output Impedance: Ensures good load regulation.

Benefits

• Stable Voltage Regulation: Provides a stable and accurate voltage reference.
• Versatile Application: Suitable for a wide range of voltage regulation and error amplifier applications.
• Simplified Design: Requires only a few external components.
• Improved System Performance: Enhances the performance and reliability of power supplies and other circuits.
• Cost-Effective: Offers a cost-effective solution for voltage regulation.

Additional Details

The LTL431ATLT1G operates with a cathode voltage range of Vref to 36V. It is typically available in a SOT-23 package. The output voltage is set by connecting two external resistors in a voltage divider configuration. The device's internal reference voltage is typically 2.5V. This shunt regulator is a popular choice for applications requiring precise and stable voltage regulation due to its performance characteristics and ease of use.