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