LM2940CT-12 by Texas Instruments Design and production,in DES TECHINOLOGY(HK)LIMITED Spot sales,And can pass DES TECHINOLOGY(HK)LIMITED Purchasing。LM2940CT-12 Price reference ¥ 13.754107。LM2940CT-12 - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information LM2940CT-12 Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial