A second FET switch, operating out of phase with {TAIL ~ the first switch}, allows the storage capacitor to discharge through an inductor back to {HEAD ~ the unregulated input source} 
A second FET switch , operating out of phase with { TAIL ~ the first switch } , allows the storage capacitor to discharge through an inductor back to { HEAD ~ the unregulated input source }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD