The SX9210ICSTRT is an RF IC controller manufactured by Semtech. It is designed to control 400kHz radio frequencies using a 1.7V to 2V power supply. It is packaged in an 8-pin WLCSP (Wafer Level Chip Scale Package) of dimensions 0.92x1.69 mm. It is ideal for use in low-power wireless applications such as Bluetooth Low Energy and Zigbee applications. This device offers robust features such as low-power operation, integrated voltage regulator, and adjustable output power. Additionally, it is designed for optimal EMC and ESD robustness, enabling operation in challenging conditions.