L9953XP by STMicroelectronics Design and production,in Hong Kong QX Electronics Limited Spot sales,And can pass Hong Kong QX Electronics Limited Purchasing。L9953XP Price reference $ 3.705750。L9953XP - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information L9953XP Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial