This part is a kind of semiconductor called LX8383A-00CP.
Function of this product has 7.5 A LOW DROPOUT POSITIVE REGULATORS.
Manufacturers : Microsemi Corporation
Image and pinout :
Some of the text within the PDF file :
LIN D O C #: 8383 LX8383-xx/8383A-xx/8383B-xx 7 . 5 A L O W D R O P O U T P O S I T I V E R E G U L AT O R S T H E I N F I N I T E P O W E R O F I N N O VA T I O N P R O D U C T I O N D A T A S H E E T DESCRIPTION The LX8383/8383A/8383B series ICs are positive regulators designed to provide 7.5A output current. All internal circuitry is designed to operate down to a 1V input-to-output differential, so the LX8383/ 83A/83B can operate with greater efficiency than previously available devices. The dropout voltage for each product is fully specified as a function of load current. Dropout is guaranteed at a maximum of 1.3V for the LX8383A/83B and 1.5V for the LX8383, at maximum output current, decreasing at lower load currents. Fixed versions are also available and specified in t [ ... ]