15a boostbuckinverting regulators mc34063a on semiconductor mc34063ap1g boostbuckinverting regulator adjustable output voltage 125v to 40v output voltage single output 15a output current 3v to 40v supply voltage 100khz switching frequency 0 to 70c 8 pdip case low standby current current limiting output voltage adjustable specifically designed to be incorporated in step down and step up and voltage inverting applications on semi mc34063ap1g switching regulator dil8