The TS80002 from Semtech is a Wireless Charging Transmitter IC that can support systems up to 5 W and portable wireless charging applications. It requires a DC supply of 2.95 to 5.5 V and consists of an integrated controller and FLASH for communications and control purposes. This controller is coded with protocol to send commands to the transmitter to adjust the power level accordingly. It supports 4 configurable general purposes I/Os, and an I2C interface. This wireless charging transmitter IC is available in a surface-mount package that measures 3 x 3 mm and is ideal for smartwatches, wearables, toys, portable lighting, and medical device applications.