AP2953A PDF datasheet can download.
This product has 18V Synchronous Rectified Step-Down Converter functions.
This is one of the semiconductor types. This part name is AP2953A.
Manufacturers of the product is Chipown.
Image and pinout :
Some of the text files within the PDF file
The AP2953A is a monolithic synchronous buck regulator. The device integrates 100mΩ MOSFETS that provide 3A continuous load current over a wide operating input voltage of 4.75V to 18V. Current mode control provides fast transient response and cycle-by-cycle current limit. An adjustable soft-start prevents inrush current at turn-on. In shutdown mode, the supply current drops below 1μA. This device, available in an 8-pin SOP package, provides a very compact system solution with minimal reliance on external components. Applications Distributed Power Systems Networking Systems FPGA, DSP, ASIC Power Supplies Green Electronics/ Appliances Notebook Computers Chipown 3A, 18V Synchronous Rectified Step-Down Converter Features 3A Output Current Wide 4.75V to 18V Operating Input Range Integrated 100mΩ Power MOSFET Switches Output Adjustable from 0.925V to 15V Up to 95% Efficiency Programmable Soft-Start Stable with Low ESR [ … ]
Please refer to the file for details.