TPS5420D by Texas Instruments(TI) Design and production,in Hong Kong QX Electronics Limited Spot sales,And can pass Hong Kong QX Electronics Limited Purchasing。TPS5420D Price reference $ 3.860000。TPS5420D - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information TPS5420D Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial