LSP5503 PDF datasheet can download.
This product has 3A Synchronous Step Down DC/DC Converter functions.
This is one of the semiconductor types. This part name is LSP5503.
Manufacturers of the product is Liteon Semiconductor.
Image and pinout :
Some of the text files within the PDF file
LSP5503 3A Synchronous Step Down DC/DC Converter FEATURES z 3A Output Current z Wide 4.5V to 27V Operating Input Range z Integrated 100m Power MOSFET Switches z Output Adjustable from 0.925V to 24V z Up to 96% Efficiency z Programmable Soft-Start z Stable with Low ESR Ceramic Output Capacitors z Fixed 400KHz Frequency z Cycle-by-Cycle Over Current Protection z Input Under Voltage Lockout z SOP8L-EP Package GENERAL DESCRIPTION The LSP5503 is a monolithic synchronous buck regulator. The device integrates 100mΩ MOSFETS that provide 3A continuous load cur-rent over a wide operating input voltage of 4.5V to 27V. Current mode control provides fast transient response and cycle-by-cycle cur-rent limit. An adjustable soft-start prevents inrush current at turn on. In shutdown mode, the supply cur-rent drops below 1µA. This device, available in an SOP8L-EP package, provides a very compact system solution with minimal reliance on external components. TYPICAL APPLICATION z z z z z Dist [ … ]
Please refer to the file for details.