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