ST has introduced a new state-of-the-art technology tailored to the high-side function in DC-DC converters. This new STripFET III process, (internally known as “SP3”), utilizes the latest generation of ST’s planar technology and is optimized for high switching frequency applications, even up to 700kHz and 1MHz.
This technology shows excellent dynamic performance in conjunction with optimized packages. It is possible to reach very good static behaviour, obtaining a figure of merit, RDS(on) * Qg, below 100mOhm * nC in an SO-8 package.