Synchronous Buck-Boost MAIN/CAMERA White LED Driver; Package: QFN; No of Pins: 20; Temperature Range: -40°C to 125°C Dual DC/DC Converter with USB Power Manager and Li-Ion Battery Charger; Package: QFN; No of Pins: 24; Temperature Range: -40°C to 125°C 12-Bit Digital-to-Analog Converter 12位数字到模拟转换