TPS54394RSAR by Texas Instruments(TI) Design and production,in Hong Kong QX Electronics Limited Spot sales,And can pass Hong Kong QX Electronics Limited Purchasing。TPS54394RSAR Price reference $ 3.070000。TPS54394RSAR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information TPS54394RSAR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial