This is a datasheet for Fairchild Semiconductor Corporation FDP2570/FDB2570, a 150V N-Channel PowerTrench MOSFET. It is specifically designed for switching on the primary side in isolated DC/DC converter applications. This MOSFET features low on-resistance and fast switching, making it suitable for applications requiring a 150V MOSFET with low on-resistance and fast switching. It has faster switching and lower gate charge compared to other MOSFETs with similar on-resistance specifications, resulting in easier and safer driving (even at high frequencies) and higher overall efficiency in DC/DC power supply designs.