The HT7544-1 with Low Dropout Regulators (LDO) SOT-89 RoHS is a voltage regulator manufactured by Youtai. It is designed for use as a linear regulator, providing a regulated output voltage with higher efficiency than standard linear voltage regulators when regulating low voltage sources. It has a SOT-89 RoHS package, offering a compact solution, allowing for tight board spacing. The nominal output voltage is set by an external resistive potential divider, while the full-load output current can range up to 1.25 A. The HT7544-1 has an ultra-low dropout voltage, a maximum of 80 mV, enabling more efficient and stable regulation. The working temperature range is from -40°C to +85°C. Other features include over temperature protection, short circuit protection, and over current protection. The HT7544-1 SOT-89 RoHS is the perfect voltage regulator for many applications requiring low-dropout voltage regulation.