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For complete documentation, view the LTC1773 page

Part Number* Description Package Pins Price (1-99) Price (100+) QTY
LTC1773EMS#PBF Synchronous Step-Down Controller MSOP 10 $2.90 $2.69
LTC1773EMS#TRPBF Synchronous Step-Down Controller MSOP 10

Demo Boards

Part Number* Description Price (1-99) QTY
DC309A LTC1773EMS | 3A Synchronous Buck Regulator, 2.8V to 8.5V Input, 1.5V/1.8V/2.5V/3.3V @ 2.5A avg / 3A peak $100.00 1
DC431A LT1725CGN LTC1773EMS | Telecom Input, Isolated 3 Output DC/DC Converter, +36V to +72V Input, Vout = 5V/1A, 3.3V/5A, 2.5V/4A 1 Contact Factory

* When ordering part numbers ending in #TR or #TRM for quantities less than (or not an even multiple of) a full reel, parts will be shipped in bulk or cut tape