DC-DC converter

A DC-DC converter which steps down an input voltage to a lower output voltage, comprising:

• an input terminal to receive the input voltage;
• an output terminal to output the output voltage;
• a high-side switch having one end connected to the input terminal;
• a low-side switch having one end connected to other end of the high-side switch and having other end connected to a ground terminal;
• an inductor having one end connected to the other end of the high-side switch and having other end connected to the output terminal;
• a capacitor having one end connected to the other end of the inductor and having other end connected to the ground terminal;
• a high-side switch controlling circuit configured to generate a high-side switch controlling signal on a basis of a target voltage of the output terminal, the output voltage of the output terminal, and a current flowing through the capacitor, and supply the high-side switch controlling signal to the high-side switch, to control on/off states of the high-side switch;
• and
• a low-side switch controlling circuit configured to generate a low-side switch controlling signal on a basis of the high-side switch controlling signal and a current flowing through the inductor, and supply the low-side switch controlling signal to the low-side switch, to control on/off states of the low-side switch.