LOW-DROPOUT REGULATOR FOR LOW VOLTAGE APPLICATIONS

摘要

A low-dropout regulator (1) for low voltage applications comprises a buffer circuit (500) being arranged between an output terminal (0100) of an error amplifier (100) and a control node (C200) of a pass device (200). The buffer circuit (500) includes a driver comprising a first transistor (11) being embodied as an NMOS transistor. The output terminal (0100) of the error amplifier (100) is coupled to the control node (C11) of the first transistor (11). The control node (C200) of the pass device (200) is coupled to an internal node (N1) of a first current path (10) including the first transistor (11). The low-dropout regulator (1) has high load capability, even if an input supply voltage is very low.