LM317T-DG by STMicroelectronics Design and production,in Hong Kong QX Electronics Limited Spot sales,And can pass Hong Kong QX Electronics Limited Purchasing。LM317T-DG Price reference $ 0.660000。LM317T-DG - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information LM317T-DG Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial