A DC-DC converter or another name known as buck regulator or switching regulator (because the input voltage can be either above or below the desired voltage output), provides stable regulated output voltage to supply electronic circuits.
LM2576 converter circuits perform same function as the commonly known voltage regulator LM7805 from National Semiconductor. The 7805 voltage regulator [...]

This is DC to DC Converter circuit. , It will change from DC Volt 1.5V boost up to 5V DC. It convenients for to are usable with digital circuit that use low current 100mA only. When see the detail in the circuit ,It the integrated circuit number LT1073 be main part. Then the circuit that [...]