uP1542,PDF数据表下载

uP1542 pdf资料下载The uP1542 is a compact synchronous-rectified buck controller specifically designed to operate from 5V or 12V supply voltage and to deliver high quality output voltage as low as 0.6V for uP1542S/U (linear OCP). The uP1542 adopts constant frequency, voltage mode control scheme, featuring easy-to-use, low external component count, and fast transient response. Fixed 300kHz operation provides an optimal level of integration to reduce size and cost of the power supply. This controller integrates internal MOSFET drivers that support 12V+12V bootstrapped voltage for high efficiency power conversion. The bootstrap diode is built-in to simplify the circuit design and minimize external part count. Other features include internal soft start, over/under voltage protection, over current protection and shutdown function. With aforementioned functions, this part provides customers a compact, high efficiency, well-protected and cost-effective solutions. This part is available in PSOP- 8L and WDFN2x2-8L package.uP1542SSU8 uP1542TSU8 uP1542QSU8 uP1542VSU8 uP1542UDD8 Datasheet pdf资料数据表下载