Wide-input range fault-tolerant clamped regulator

Abstract

A voltage regulator may be configured to receive an input voltage at an input and generate an output voltage at an output. The voltage regulator may include a plurality of pass devices coupled in series between the input and the output, wherein a first device of the plurality of pass devices is closer to the input than the other of the plurality of pass devices embedded within a feedback loop of the voltage regulator and a gate bias network configured to bias gates of the plurality of pass devices such that the plurality of pass devices act as a single series device within a first voltage range of the input voltage and act as a series stack of cascode devices with the first device acting as a voltage-controlled current source within a second voltage range of the input voltage higher than the first voltage range and the output voltage is in a protected voltage domain immune from high-voltage transients of the input voltage.

Dependencies are inferred from the claim text.