E-UC3844BD1IC REG CTRLR BST FLYBK ISO 8SOIC|STMICROELECTRONICS|Lead free|RoHS Compliant UC3844AD8 UC3844D8 UC3845AD8 UC3845D8 UC2845AQD8 UC3844ADM UC3844BD1G UC3844BD1R2G UC3844BVD1G UC3845ADM UC3845BD1G UC3845BVD1G