Microchip Technology, Inc. Linear Volt Reg, 0.02A, 440V, To-92-3; Fixed Output Voltage Nom. Microchip LR8N3-G

The Linear Voltage Regulator (part number 31Y2385) is a high-voltage, adjustable 3-terminal linear regulator designed for applications requiring a wide input voltage range of 13.2V to 450V. It allows for adjustable output voltage regulation from 1.20V to 438V, with a typical output current limit of 20mA. The device features a 5% output voltage tolerance, internal junction temperature limiting, and output current limiting to enhance reliability and safety. This regulator is suitable for various applications, including off-line switch-mode power supply (SMPS) startup circuits, adjustable high voltage constant current sources, industrial controls, motor controls, battery chargers, and power supplies. It requires a minimum output load capacitance of 1.0µF and a minimum DC output current of 500µA for stability. The device is available in a TO-92 package, making it suitable for compact designs.