Buck converter including inductor current sensing via high- and low-side switching device current sensing

An apparatus for generating an output voltage across a load, comprising:

• a first charger, comprising:
• a first switching device;
• a second switching device coupled in series with the first switching device between an upper voltage rail and a lower voltage rail, wherein the upper voltage rail is configured to receive an input voltage;
• a first inductor coupled between a node between the first and second switching devices and the load;
• a first sensor configured to generate a first control signal related to a current through the first inductor, wherein the first sensor comprises:
• a first current sensor configured to generate a first sensed current related to a current through the first switching device;
• a second current sensor configured to generate a second sensed current related to a current through the second switching device;
• and
• a first summer configured to sum the first and second sensed currents to generate the first control signal;
• and
• at least one controller configured to operate the first and second switching devices to generate the output voltage based on the first control signal.