The invention provides a low-drop-out voltagestabilizer. The low-drop-out voltagestabilizer comprises an
error amplifier, a second
field effect tube, a power device, a first
field effect tube and a super source follower, wherein the positive
electrode input end of the
error amplifier receives reference
voltage, and the negative
electrode input end is connected with the output end, the drain
electrode of the second
field effect tube is connected with the output end of the
error amplifier, the source electrode of the second field effect tube is grounded through a second
current source, and the grid electrode of the second field effect tube is grounded through a second
current source; the drain electrode of the power device is connected to the power
voltage, the drain electrode of the power device is connected with the drain electrode of the first field effect tube, and meanwhile, the power device is grounded through a first
capacitor, grounded through a load
current source and grounded through a third
capacitor and a first current source; the grid electrode of the first field effect tube is connected with the grid electrode of the second field effect tube, the drain electrode of thefirst field effect tube is connected with the source electrode of the power device, and the source electrode of the first field effect tube is grounded through the first current source and meanwhile connected with the input end of the super source follower; the output end of the super source follower is connected with the grid electrode of the power device and meanwhile grounded through a second
capacitor.