TPS5402DR by Texas Instruments(TI) Design and production,in Shenzhen Yirenxin Technology Co., Ltd. Spot sales,And can pass Shenzhen Yirenxin Technology Co., Ltd. Purchasing。TPS5402DR Price reference $ 0.800000。TPS5402DR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information TPS5402DR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial