Version 4 SymbolType CELL RECTANGLE Normal 208 256 -208 -256 TEXT 0 0 Center 2 LT WINDOW 3 0 128 Center 2 WINDOW 0 0 -128 Center 2 SYMATTR Value LTC3649 SYMATTR Prefix X SYMATTR SpiceModel LTC3649.sub SYMATTR Value2 LTC3649 SYMATTR Description 60V, 4A Synchronous Step-Down Regulator with Rail-to-Rail Programmable Output PIN 128 256 BOTTOM 8 PINATTR PinName PGND PINATTR SpiceOrder 1 PIN -112 -256 TOP 8 PINATTR PinName Vin PINATTR SpiceOrder 3 PIN -208 -96 LEFT 8 PINATTR PinName Run PINATTR SpiceOrder 5 PIN -128 256 BOTTOM 8 PINATTR PinName SGND PINATTR SpiceOrder 6 PIN -208 192 LEFT 8 PINATTR PinName Mode/SYNC PINATTR SpiceOrder 7 PIN -208 0 LEFT 8 PINATTR PinName Pgood PINATTR SpiceOrder 8 PIN 208 96 RIGHT 8 PINATTR PinName PGDFB PINATTR SpiceOrder 9 PIN 208 192 RIGHT 8 PINATTR PinName IMON PINATTR SpiceOrder 10 PIN -208 -192 LEFT 8 PINATTR PinName VinREG PINATTR SpiceOrder 11 PIN -208 96 LEFT 8 PINATTR PinName Rt PINATTR SpiceOrder 12 PIN 208 -192 RIGHT 8 PINATTR PinName Vout PINATTR SpiceOrder 13 PIN 48 256 BOTTOM 8 PINATTR PinName Iset PINATTR SpiceOrder 14 PIN -48 256 BOTTOM 8 PINATTR PinName Ith PINATTR SpiceOrder 15 PIN 112 -256 TOP 8 PINATTR PinName EXTVcc PINATTR SpiceOrder 16 PIN 0 -256 TOP 8 PINATTR PinName INTVcc PINATTR SpiceOrder 17 PIN 208 -96 RIGHT 8 PINATTR PinName Boost PINATTR SpiceOrder 18 PIN 208 0 RIGHT 8 PINATTR PinName SW PINATTR SpiceOrder 19