LM317AMDTX by Texas Instruments Design and production,in DES TECHINOLOGY(HK)LIMITED Spot sales,And can pass DES TECHINOLOGY(HK)LIMITED Purchasing。LM317AMDTX Price reference ¥ 10.190611。LM317AMDTX - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information LM317AMDTX Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial