This part is a kind of semiconductor called UP6210.

Function of this product has Compact Dual Phase Synchronous Rectified Buck Controller.

Manufacturers : UPI Micro

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Preliminary uP6210 Compact Dual-Phase Synchronous-Rectified Buck Controller General Description The uP6210 is a compact dual-phase synchronous-rectified Buck controller specifically designed to deliver high quality output voltage for high power applications. This part is capable of delivering up to 60A output current thanks to its embedded bootstrapped drivers that support 12V + 12V driving capability. The uP6210 features configurable gate driving voltage for maximum efficiency and optimal performance. The built-in bootstrap diode simplifies the circuit design and reduces external part count and PCB space. The output voltage is precisely regulated to the reference input that is dynamically adjustable by external voltage divider. The uP6210 adopts DCR current sensing [ ... ]

UP6210 PDF Datasheet Download