Switched dc 3.3v switched 12 volt dc voltage converter circuit allows reducing the 3.3 volt output. LM2575 operating frequency of 52 kHz to 1 amp of 80% power efficiency. LM2575 step-down (buck) switching regulator LM2575 series of regulators are... Electronics Projects, 3.3V DC to DC Converter Circuit LM2575 Power Supply "dc dc converter circuit, power electronic projects, " Date 2019/08/02