Faraday Technology Corporation

Wen-Chi Huang

Chi-Yang Chen

Chen-Hui Xu

Hui-Wen Hu

Xiao-Dong Fei

The present invention discloses a regulator. The regulator includes a bias voltage generating circuit and a flipped voltage follower (FVF), wherein the bias voltage generating circuit is configured to generate a bias voltage, and the FVF is configured to generate an output voltage according to the bias voltage and a supply voltage. The FVF includes a first P-type transistor and a first N-type transistor. The P-type transistor is configured to receive the bias voltage via a gate electrode of the P-type transistor, to generate the output voltage on a source electrode of the P-type transistor. A drain electrode of the first N-type transistor is connected to the supply voltage, a source electrode of the first N-type transistor is connected to the source electrode of the first P-type transistor, and a gate electrode of the first N-type transistor receives a driving signal for compensating the output voltage.

Regulator with flipped voltage follower architecture

A voltage regulator is connected with an input/output circuit. The voltage regulator includes a controlling circuit, a sink voltage generator and a source voltage generator. The controlling circuit generates a first reference voltage, a second reference voltage, a first power start control signal and a second power start control signal. The sink voltage generator receives the first reference voltage and the first power start control signal. The source voltage generator receives the second reference voltage and the second power start control signal. When the voltage regulator is in a normal working state, the controlling circuit inactivates the first power start control signal and the second power start control signal, the sink voltage generator generates a sink voltage according to the first reference voltage, and the source voltage generator generates a source voltage according to the second reference voltage.

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Hsinchu, Taiwan

Wen-Chi Huang