(MC34063 Chinese data PDF and MC34063 use 1. MC34063 DC/DC converter control circuit introduction: MC34063 is a monolithic bipolar linear integrated circuit, dedicated to the DC-DC converter control part. The on-chip package is rich in temperature compensated bandgap reference source, a duty cycle controlled oscillator, driver and high current output switch capable of outputting 1.5A switching current. It can use minimal external components to form a switching boost conversion)