Domino voltage regulator (dvr)
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- Patent
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A low dropout voltage regulator comprising a first output voltage regulation loop with a NMOS transistor as a pass element and a second output voltage regulation loop with a PMOS transistor as a pass element. The NMOS transistor is used for small current loads up to 1 mA, the PMOS transistor is used for higher current loads from 1 mA and up. A current sense buffer senses the current through the NMOS transistor and controls the gate of the PMOS transistor accordingly. Good load transient operation is achieved without the need of an external load capacitor.