Infineon Technologies Ag

Wenche Einerman

Christer Jansson

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.

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Lidingo, Sweden

Wenche Einerman