This part is a kind of semiconductor called AM9208.
Function of this product has 2A Step Up Regulator.
Manufacturers : SZ Xiangshuo
Image and pinout :

Some of the text within the PDF file :
AM9208 High Efficiency 1MHz, 2A Step Up Regulator Preliminary Specification General Description The AM9208 SY7208 is a high efficiency boost regulators targeted for general step-up applications. Features • • • • • • • • Wide input range: 3-25V bias input, 25Vout max 1MHz switching frequency Minimum on time: 100ns typical Minimum off time: 100ns typical Low RDS(ON): 150mΩ RoHS Compliant and Halogen Free Accurate Reference: 0.6VREF Compact package: SOT23 6 pins Ordering Information AM9208 □(□□)□ Temperature Code Package Code Optional Spec Code Temperature Range: -40°C to 85°C Ordering Number SY7208ABC AM9208 Package type SOT23-6 Note 2A Applications • WLED Drivers • Networking cards powered from PCI or PCIexpress slots Typical Applications L VIN IN LX [ ... ]
AM9208 PDF Datasheet Download
