The TP4054ST25K is an integrated circuit (IC) manufactured by TPOWER, an international brand specializing in PMIC (Power Management Integrated Circuit) solutions. It is a low-dropout (LDO) linear regulator with two outputs of 1.25V and 2.5V capable of supplying up to 1.35A of current. It is packaged in a SOT-23-5 RoHS compliant package. It includes built-in short-circuit protection, current-limit protection, over-voltage protection, and overheating protection. Its wide input voltage range of 5-20V allows it to be used in a variety of applications. It can be used to regulate the voltage levels of battery-powered devices such as medical, wearable, and industrial electronics. The integrated low routing inductance and the high-frequency switching architecture provide low output impedance and less load sensitivity.