With the development of electric tools, DC brush motor is gradually upgraded to DC brushless motor, which requires more and more parameters such as MOS volume, internal resistance and Qg. For brushless motor, our company is committed to developing high-quality power MOSFET (small package, low internal resistance and low Ciss) with low internal resistance as low as 2Mω and excellent switching frequency characteristics, which is matched with TVS and LDO to make the battery power supply and the motor load more stable.