Apparatus and methods for reducing inductor ringing of a voltage converter

A voltage converter system comprising:

• a voltage converter configured to generate an output voltage based on controlling a current through an inductor;
• and
• a bypass circuit that selectively bypasses the inductor based on a state of a bypass control signal, the bypass circuit including a first n-type field effect transistor and a second n-type field effect transistor electrically connected in series between a first end of the inductor and a second end of the inductor, the first n-type field effect transistor having a body electrically connected to a ground voltage, and the second n-type field effect transistor having a body electrically connected to a switchable voltage.

A power amplifier system comprising:

• a power amplifier configured to amplify a radio frequency signal, the power amplifier configured to receive power from a power amplifier supply voltage;
• and
• an envelope tracker configured to generate the power amplifier supply voltage based on an envelope of the radio frequency signal, the envelope tracker including a voltage converter configured to control the power amplifier supply voltage based on controlling a current through an inductor, and a bypass circuit that selectively bypasses the inductor based on a state of a bypass control signal, the bypass circuit including a first n-type field effect transistor and a second n-type field effect transistor electrically connected in series between a first end of the inductor and a second end of the inductor, the first n-type field effect transistor having a body electrically connected to a ground voltage, and the second n-type field effect transistor having a body electrically connected to a switchable voltage.