L4974 PDF datasheet can download.
This product has 3.5A SWITCHING REGULATOR functions.
This is one of the semiconductor types. This part name is L4974.
Manufacturers of the product is STMicroelectronics.
Image and pinout :
Some of the text files within the PDF file
® L4974A 3.5A SWITCHING REGULATOR . . . . . . . . . . . . . . 3.5A OUTPUT CURRENT 5.1V TO 40V OUTPUT VOLTAGE RANGE 0 TO 90% DUTY CYCLE RANGE INTERNAL FEED-FORWARD LINE REG. INTERNAL CURRENT LIMITING PRECISE 5.1V ± 2% ON CHIP REFERENCE RESET AND POWER FAIL FUNCTIONS INPUT/OUTPUT SYNC PIN UNDER VOLTAGE LOCK OUT WITH HYSTERETIC TURN-ON PWM LATCH FOR SINGLE PULSE PER PERIOD VERY HIGH EFFICIENCY SWITCHING FREQUENCY UP TO 200KHz THERMAL SHUTDOWN CONTINUOUS MODE OPERATION MULTIPOWER BCD TECHNOLOGY POWERDIP (16 + 2 + 2) ORDERING NUMBER : L4974A DESCRIPTION The L4974Aisa stepdownmonolithicpower switching regulator delivering 3.5A at a voltage variable from 5.1 to 40V. Realized with BCD mixed technology, the device uses a DMOS output transistor to obtain very high efficiency and very fast switching times. Features of BLOCK DIAGRAM the L4974A include reset and power fail for microprocessors, feed forward line regulation, soft start, limiting current and thermal protection. The device is [ … ]
Please refer to the file for details.