Low Dropout Regulator and Related Method

摘要

A device is configured to provide low dropout regulation. An amplifier stage includes a first transistor electrically connected to an output of the device, and a second transistor. A current mirror includes a third transistor electrically connected to the second transistor, and a fourth transistor electrically connected to the third transistor. The auxiliary current source has a control terminal electrically connected to a gate electrode of the fourth transistor. The pull down stage includes a fifth transistor having a gate electrode electrically connected to a drain electrode of the first transistor, and a sixth transistor having a gate electrode electrically connected to the gate electrode of the fourth transistor. The pull up transistor has a gate electrode electrically connected to a drain electrode of the fifth transistor. The first capacitor has a first terminal electrically connected to the gate electrode of the first transistor.

主权项

1. A device comprising:
an amplifier stage including:
a first transistor having a control terminal electrically connected to an output of the device; anda second transistor; a current mirror including:
a third transistor having a gate electrode electrically connected to a gate electrode of the second transistor; anda fourth transistor having a drain electrode electrically connected to a drain electrode of the third transistor; an auxiliary current source having a control terminal electrically connected to a gate electrode of the fourth transistor; a pull down stage including:
a fifth transistor having a gate electrode electrically connected to a drain electrode of the first transistor; anda sixth transistor having a gate electrode electrically connected to the gate electrode of the fourth transistor; a pull up transistor having a gate electrode electrically connected to a drain electrode of the fifth transistor; and a first capacitor having a first terminal electrically connected to the gate electrode of the first transistor.