CSD18540Q5B by Texas Instruments(TI) Design and production,in Hong Kong QX Electronics Limited Spot sales,And can pass Hong Kong QX Electronics Limited Purchasing。CSD18540Q5B Price reference $ 2.720000。CSD18540Q5B - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information CSD18540Q5B Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial