DC DC converter circuit MC-34063 based on the extra power upgrade yet integrated 500 milliamps of power can give, but the output voltage according to this value changes the operating frequency C6 capacitor and the 70 kHz determined r4... Electronics Projects, MC34063 SMD Step Down DC DC Converter Circuit 3V 12V Adjustable "dc dc converter circuit, power electronic projects, " Date 2019/08/02