The LM317EMP/TR is an adjustable voltage regulator and a three-terminal positive voltage regulator from HGSEMI. It offers a wide input voltage range of 3.0V to 40V, programmable output voltage range of 1.2V to 37V, and a programmable maximum of 1.5A. This device features a power-good flag and an adjustable current limit. It also provides thermal overload protection and reverse polarity protection. The device is available in a SOT-223 RoHS package and provides good line and load regulation. It is suitable for use in various industrial and consumer applications, such as DC to DC converters, battery charging, and LED lighting.