Billions of Electronic Components on Chovm.com. Trade in Real Time, Logistics Service Optional,Thousands of Global Suppliers. MAX20021ATIA/V+T, power dc-dc switching regulator IC by Analog Devices Inc./Maxim Integrated, IC REG BUCK QD 28TQFN. Package/CaseType is 28-WFQFN Exposed PadSurface Mount