E-UC2844BD1IC REG CTRLR BST FLYBK ISO 8SOIC|STMICROELECTRONICS|Lead free|RoHS Compliant UC2844AQD8 UC2844AD8 UC2844ADM E-UC2844BD1013TRIC REG CTRLR BST FLYBK ISO 8SOIC|STMICROELECTRONICS|Lead free|RoHS Compliant UC2844AQD8R UC2844AD8TR UC2844ADM