It provides all DC to DC conversion and power regulation functions with {HEAD ~ a minimum} of {TAIL ~ external components} 
of
It provides all DC to DC conversion and power regulation functions with { HEAD ~ a minimum } of { TAIL ~ external components }
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