TPS5420DR by Texas Instruments Design and production,in Seccoeko Technology Co., Ltd. Spot sales,And can pass Seccoeko Technology Co., Ltd. Purchasing。TPS5420DR Price reference $ 2.065432。TPS5420DR - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information TPS5420DR Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial