LM340T-12/NOPB by TI Design and production,in Shenzhen Yirenxin Technology Co., Ltd. Spot sales,And can pass Shenzhen Yirenxin Technology Co., Ltd. Purchasing。LM340T-12/NOPB Price reference $ 0。LM340T-12/NOPB - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information LM340T-12/NOPB Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial