LD39020ADTPU28R by STMicroelectronics Design and production,in TanJiayuan Electronics Spot sales,And can pass TanJiayuan Electronics Purchasing。LD39020ADTPU28R Price reference ¥ 3.201139。LD39020ADTPU28R - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information LD39020ADTPU28R Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial