Switched capacitor regulators with flying-inverter-controlled power switches

A switching capacitor regulator, comprising:

• a first terminal;
• a second terminal;
• a switching capacitor configured to switch between a first state and a second state, wherein, in the first state, a first node of the switching capacitor is coupled to the second terminal, and a second node of the switching capacitor is coupled to a fixed voltage level, and wherein, in the second state, the first node of the switching capacitor is coupled to the first terminal, and the second node of the switching capacitor is coupled to the second terminal;
• a first power switch configured to couple the second node of the switching capacitor to the second terminal when the switching capacitor is in the second state, wherein the first power switch is a negative channel metal-oxide semiconductor (NMOS) power switch;
• a second power switch configured to couple the first node of the switching capacitor to the second terminal when the switching capacitor is in the first state, wherein the second power switch is controlled by a signal that switches between a first pair of voltage levels, and wherein the second power switch is a negative channel metal-oxide semiconductor (NMOS) power switch;
• and
• a flying inverter configured to control the first power switch, wherein the flying inverter has a positive power terminal and a negative power terminal, wherein the positive power terminal always has the same voltage as the first node of the switching capacitor, wherein the negative power terminal always has the same voltage as the second node of the switching capacitor, and wherein the flying inverter controls the first power switch using a signal that switches between a second pair of voltage levels that is different from the first pair of voltage levels.