The JW1782B LED Driver SOT-89-3 RoHS is a three-terminal voltage regulator manufactured by JoulWatt. It is a type of voltage regulator that can maintain a voltage constant despite fluctuating supply voltage. It is designed to accept a wide range of input voltages and deliver a regulated output regardless of load conditions. The device is designed to provide a stable output current of up to 30mA. It is capable of providing adjustable output voltage as low as 1.5V and as high as 5V, allowing the users to tailor the output voltage to their desired requirements. Furthermore, the device also has a shutdown pin, allowing the user to quickly power down the system at any time. The device comes in an industry standard SOT-89-3 RoHS package, making it easy to be used in other designs and applications.