The SI-8008HD, SI-8008HFE, and SI-8050HFE DC voltage regulators are DC-to-DC buck convertors that attain an oscillation frequency of 150 kHz, and have an integrated miniaturized choke coil, allowing them to serve as small, high efficiency power supplies in compact TO-263 or TO220F packages.
The internal switching regulator function provides high efficiency switching regulation without any need for adjustment. These devices require only six external support components. The optional soft start function requires an additional capacitor. Optional on/off control can be performed using a transistor. The SI-8008HD, SI-8008HFE, and SI-8050HFE include overcurrent and overtemperature protection circuits.