Buck boost mode control circuitry controls the buck boost voltage regulation circuitry using peak current mode control in {HEAD ~ a buck mode} of {TAIL ~ operation} and valley current mode control in boost mode of operation responsive to the monitored input current 
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Buck boost mode control circuitry controls the buck boost voltage regulation circuitry using peak current mode control in { HEAD ~ a buck mode } of { TAIL ~ operation } and valley current mode control in boost mode of operation responsive to the monitored input current
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH