Linear power regulator to prevent excessive inrush current

A linear power regulator comprising:

• a first source follower configured to determine an output voltage of the linear power regulator based on a reference voltage signal applied from outside;
• a pass-transistor connected to a source end of the first source follower and configured to provide a current to a load of the linear power regulator;
• a second source follower connected to a drain terminal of the first source follower and a gate of the pass-transistor to form a negative feedback loop;
• and
• a negative feedback coefficient controller configured to control a negative feedback coefficient of the negative feedback loop,
• wherein the negative feedback coefficient controller is configured to change the negative feedback coefficient of the negative feedback loop based on an elapsed time from a point in time at which a power signal is applied to the linear power regulator.

A linear power regulator comprising:

• a source follower configured to determine an output voltage of the linear power regulator based on a reference voltage signal applied from outside;
• a pass-transistor connected to a source end of the source follower and configured to provide a current to a load of the linear power regulator;
• a cascode transistor connected to a drain terminal of the source follower and a gate of the pass-transistor to form a negative feedback loop;
• and
• a negative feedback coefficient controller disposed between the cascode transistor and the pass-transistor and configured to control a negative feedback coefficient of the negative feedback loop,
• wherein the negative feedback coefficient controller is configured to change the negative feedback coefficient of the negative feedback loop based on an elapsed time from a point in time at which a power signal is applied to the linear power regulator.