Abstract: A regulated voltage is generated at an output terminal of a voltage regulator circuit having at least one input terminal. A feedback signal is coupled from a first transistor coupled in parallel with a first resistor between the output terminal and the input terminal. The feedback signal is coupled to the input terminal to regulate the stability of the voltage regulator circuit. In a method of operation, the stability of a circuit is regulated by generating a feedback signal in the circuit to add a zero to a transfer function and raise an open loop phase curve of the circuit to result in a better power signal rejection ratio over a frequency range for the circuit.

Abstract: A regulated voltage is generated at an output terminal of a voltage regulator circuit having at least one input terminal. A feedback signal is coupled from a first transistor coupled in parallel with a first resistor between the output terminal and the input terminal. The feedback signal is coupled to the input terminal to regulate the stability of the voltage regulator circuit. In a method of operation, the stability of a circuit is regulated by generating a feedback signal in the circuit to add a zero to a transfer function and raise an open loop phase curve of the circuit to result in a better power signal rejection ratio over a frequency range for the circuit.

Abstract: The invention relates to an input buffer amplifier suitable for a system on chip (SoC) device. The input buffer amplifier has a single ended input and a differential output. The input terminal is connected to a first differential stage having two transistors and to a second differential stage having two transistors. The first and second differential stages are further connected to a first and second load, for example, current mirrors being connected so as to provide a differential output at the output terminals.