Smart Power Stage Modules onsemi Smart Power Stage Modules are next-generation, ultra-compact, integrated MOSFET plus driver power stage solution. These Smart Power Stage Modules feature DrMOS technology for high efficiency, high power density, and high switching frequency in applications such as synchronous buck DC-DC converters in high-performance computing and telecom. With an integrated approach, the complete switching power stage is optimized for driver and MOSFET dynamic performance, system inductance and power MOSFET RDS(ON). onsemi SPS modules use our high-performance PowerTrench® MOSFET technology to reduce ringing, eliminating the need for a snubber circuit in most buck converter applications.