Abstract: A voltage regulator circuit with two series connected resistors connected together at a common resistor node. An initial conducting path has a first pass transistor with a first terminal connected to a first supply rail and a second terminal connected to a regulated output voltage. A main conducting path has a second pass transistor with a first terminal connected to the first supply rail and a second terminal connected to the regulated output voltage. A comparator has an input connected to the common resistor node output is connected to a gate of the first pass transistor. A voltage threshold switch is connected to the common resistor node, and based on the voltage at the common resistor node the voltage threshold switch selectively connects a gate of the second pass transistor to the comparator output.

Abstract: A current-starved inverter circuit includes first and second current-mirror circuits, first and second transistors, a detector, and a current-booster. The first and second transistors receive a first source current and a first sink current from the first and second current-mirror circuits, respectively, and an input voltage signal, and generate an inverted input voltage signal (an output voltage signal). The detector generates a first detection signal when the output voltage signal exceeds a first threshold value and a second detection signal when the output voltage signal is less than a second threshold value. The current-booster, which is connected to the detector, receives the first and second detection signals and provides a second source current and a second sink current to the first and second transistors to pull-up and pull-down a voltage level of the output voltage signal, respectively.

Abstract: A current-starved inverter circuit includes first and second current-mirror circuits, first and second transistors, a detector, and a current-booster. The first and second transistors receive a first source current and a first sink current from the first and second current-mirror circuits, respectively, and an input voltage signal, and generate an inverted input voltage signal (an output voltage signal). The detector generates a first detection signal when the output voltage signal exceeds a first threshold value and a second detection signal when the output voltage signal is less than a second threshold value. The current-booster, which is connected to the detector, receives the first and second detection signals and provides a second source current and a second sink current to the first and second transistors to pull-up and pull-down a voltage level of the output voltage signal, respectively.