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For complete documentation, view the LTC3870 page

Part Number* Description Package Pins Price (1-99) Price (100+) QTY
LTC3870EUFD#PBF PolyPhase Step-Down Slave Controller for LTC3880/LTC3883 with Digital Power System Management QFN 28 $3.36 $2.85
LTC3870EUFD#TRPBF PolyPhase Step-Down Slave Controller for LTC3880/LTC3883 with Digital Power System Management QFN 28
LTC3870IUFD#PBF PolyPhase Step-Down Slave Controller for LTC3880/LTC3883 with Digital Power System Management QFN 28 $3.62 $3.07
LTC3870IUFD#TRPBF PolyPhase Step-Down Slave Controller for LTC3880/LTC3883 with Digital Power System Management QFN 28 $3.13

Demo Boards

Part Number* Description Price (1-99) QTY
DC2089A-A LTC3880EUJ/LTC3870EUFD RSENSE Demo Board | 7V ≤ VIN ≤ 14V; VOUT = 0.8V to 1.8V @ 80A $275.00 1 Contact Factory
DC2089A-B LTC3880EUJ/LTC3870EUFD DCR SENSE Demo Board | 7V ≤ VIN ≤ 14V; VOUT = 0.8V to 1.8V @ 80A $275.00 1
DC2155A-B LTC3886UKG/LTC3870UFD Demo Board (RSENSE) | 4 Phase Single Output PMBus Buck 18V≤VIN ≤54V, VOUT=12V at 48A, 150kHz 1 Contact Factory

Companion Boards

Part Number* Description Price (1-99) QTY
DC1613A USB-to-PMBus Controller for Use with LTpowerPlay $50.00 1

* 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