The TP4054 SOT-23-5L RoHS Battery Management PMIC manufactured by Youtai is a 5-terminal power management IC specifically designed for single-cell lithium-ion batteries. It features automatic charge termination, charge current and voltage regulation, and over-temperature- and over-charge-protection capability. It also includes a boost converter for system power. This IC is ideal for use in applications such as mobile phones, photography equipment, tablet PCs, and other consumer devices.