The BL78L05D with Linear Voltage Regulator SOT-89 (SOT-89-3) RoHS is a three-terminal voltage regulator, specifically designed for use in electronic devices that require low power. This device is manufactured by Belling, and it has a maximum output current of 500 mA, a maximum input voltage of 28V, an output voltage range of 2.7V to 5.5V, and a temperature range of -40°C to +125°C. It is designed for use in output voltage regulation applications, such as self-regulating switched mode power supplies, temperature controllers, and motor speed control. Additionally, this device also features an output transistor with short circuit protection for improved stability and enhanced electrical characteristics. It is available in RoHS compliant, lead free surface mount packages.