Hybrid voltage regulator architecture

A method, comprising:

• providing, on an information handling system, a first portion of a voltage regulator, the first portion including a first converter phase configured to receive an input voltage and to provide an output voltage on a power rail through a first inductor;
• coupling a first terminal of the first inductor to an output of the first converter phase;
• coupling a second terminal of the first inductor to the power rail;
• providing, on the information handling system, a second portion of the voltage regulator, the second portion including a second converter phase configured to receive the input voltage and to provide the output voltage on the power rail through a first primary winding of a first coupled inductor, and a third converter phase configured to receive the input voltage and to provide the output voltage on the power rail through a second primary winding of a second coupled inductor, wherein the first coupled inductor includes the first primary winding and a first secondary winding magnetically coupled to the first primary winding, and wherein the second coupled inductor includes the second primary winding and a second secondary winding magnetically coupled to the second primary winding,
• coupling a first terminal of the first primary winding to an output of the second voltage converter;
• coupling a second terminal of the first primary winding to the power rail;
• coupling a first terminal of the second primary winding to an output of the third voltage converter;
• coupling a second terminal of the second primary winding to the power rail;
• coupling a first terminal of a compensation inductor to a ground plane;
• coupling a second terminal of the compensation inductor to a first terminal of the first secondary winding;
• coupling a second terminal of the first secondary winding to a first terminal of the second secondary winding;
• and
• coupling a second terminal of the second secondary winding to the ground plane.

An information handling system, comprising:

• a load;
• and
• a voltage regulator configured to provide a power rail to provide power to the load, the voltage regulator including:
• a first portion including a first converter phase configured to receive an input voltage and to provide an output voltage on the power rail through a first inductor, wherein a first terminal of the first inductor is coupled to an output of the first converter phase, and a second terminal of the first inductor is coupled to the power rail;
• a second portion including:
• a second converter phase configured to receive the input voltage and to provide the output voltage on the power rail through a first primary winding of a first coupled inductor, the first coupled inductor including the first primary winding and a first secondary winding magnetically coupled to the first primary winding, wherein a first terminal of the first primary winding is coupled to an output of the second voltage converter, and a second terminal of the first primary winding is coupled to the power rail;
• and
• a third converter phase configured to receive the input voltage and to provide the output voltage on the power rail through a second primary winding of a second coupled inductor, the second coupled inductor including the second primary winding and a second secondary winding magnetically coupled to the second primary winding, wherein a first terminal of the second primary winding is coupled to an output of the third voltage converter, and a second terminal of the second primary winding is coupled to the power rail;
• wherein a first terminal of the compensation inductor is coupled to a ground plane, a second terminal of a compensation inductor is coupled to a first terminal of the first secondary winding, a second terminal of the first secondary winding is coupled to a first terminal of the second secondary winding, and a second terminal of the second secondary winding is coupled to the ground plane.