a voltage regulator, selectively enabled and disabled in response to a control input, {HEAD ~ a pair} of {TAIL ~ voltage monitors}, 
of
a voltage regulator , selectively enabled and disabled in response to a control input , { HEAD ~ a pair } of { TAIL ~ voltage monitors } ,
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH