SiP12109 4A, 4.5-15V Synchronous Buck Regulator Vishay Semiconductor SiP12109 4A , 4.5V to 15V Input Synchronous Buck Regulator is a high frequency current-mode constant on-time (CM-COT) synchronous buck regulator with integrated high-side and low-side power MOSFETs. Its power stage supplies 4A continuous current at 1.5MHz switching frequency. This regulator offers an adjustable output voltage down to 0.6V from 4.5V to 15V input rail. This accommodates a variety of applications, including computing, consumer electronics, telecom, and industrial. Learn More