XR20M1170IL24-F 电源IC XR20M1170IL24TR XR20M1170IL24TR-F XR20M1170IL24TR-F QFN24 XR20M1170IL28-F XR20M1170L16-0A-EB XR20M1170L16-0B-EB XR20M1170L24-0A-EB XR20M1170L24-0B-EB XR20M1170L28-0A-EB