The AP1501-ADJ/TR is a voltage regulator and adjustable monolithic linear integrated circuit manufactured by HGSEMI. It is a positive voltage regulator that provides a regulated output voltage between 1.4 volts and 15 volts, set by an internal divider network. The circuit features good load and line regulation, low dropout voltage, and remarkably low output noise. It has an on-chip thermal shutdown protection and series-resistor current limit. The 263-5L indication in the part number refers to its 3-pin TO-263-5L package. The RoHS marking indicates that this part meets the European Directive’s requirements on the reduction of hazardous substances, making it safe for use in any environment.