The S-8520/8521 Series is a CMOS step-down switching regulator-controller with PWM control (S-8520 Series) and PWM / PFM switching control (S-8521 Series). The S-8520/8521 Series has a reference voltage source, an oscillation circuit, an error amplifier, and other components
The S-1172 Series, developed by using CMOS technology, is a positive voltage regulator with a super low dropout voltage, high-accuracy output voltage and low current consumption.