TPS2074DB by TI Design and production,in INSO(INCREDIBLE SOLUTION) Spot sales,And can pass INSO(INCREDIBLE SOLUTION) Purchasing。TPS2074DB Price reference $ 0。TPS2074DB - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information TPS2074DB Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial