| Part No.： | LTC3856 |
| Page： | 40 Pages |
| Size： | 729 KB |
| Manufacturer： | Linear Technology |
| Logo： |  |
| Views： | 1 |
| Update Time： | 2024-12-05 21:14:11 |
| DataSheet： | Download |
| Part No. | Packing | SPQ | Marking | MSL | Pins | Temp Range | Package Description | Buy |
| LTC3856EFE#PBF | Tube | 50 | LTC3856FE | 1 | 38 | -40°C ~ 125°C | 38-Lead Plastic TSSOP | |
| LTC3856EFE#TRPBF | Reel | 2000 | LTC3856FE | 1 | 38 | -40°C ~ 125°C | 38-Lead Plastic TSSOP | |
| LTC3856IFE#PBF | Tube | 50 | LTC3856FE | 1 | 38 | -40°C ~ 125°C | 38-Lead Plastic TSSOP | |
| LTC3856IFE#TRPBF | Reel | 2000 | LTC3856FE | 1 | 38 | -40°C ~ 125°C | 38-Lead Plastic TSSOP | |
| LTC3856EUH#PBF | Tube | 73 | 3856 | 1 | 32 | -40°C ~ 125°C | 32-Lead (5mm × 5mm) Plastic QFN | |
| LTC3856EUH#TRPBF | Reel | 2500 | 3856 | 1 | 32 | -40°C ~ 125°C | 32-Lead (5mm × 5mm) Plastic QFN | |
| LTC3856IUH#PBF | Tube | 73 | 3856 | 1 | 32 | -40°C ~ 125°C | 32-Lead (5mm × 5mm) Plastic QFN | |
| LTC3856IUH#TRPBF | Reel | 2500 | 3856 | 1 | 32 | -40°C ~ 125°C | 32-Lead (5mm × 5mm) Plastic QFN |
The LTC3856 is a single output, dual channel PolyPhase synchronous step-down DC/DC controller that drives all N-channel power MOSFET stages. This device includes a high speed differential amplifier for remote output voltage sense. Power loss and supply noise are minimized by operating the two controller output stages out-of-phase and up to 12-phase operation can be achieved.
The LTC3856 monitors the output current by sensing the voltage drop across the output inductor (DCR) or by using a sense resistor. DCR temperature compensation maintains an accurate current sense threshold over a broad temperature range. A constant-frequency, current mode architecture allows a phase-lockable frequency of up to 770kHz.
A wide 4.5V to 38V input supply range encompasses most intermediate bus voltages and battery chemistries. Burst Mode operation, continuous or Stage Shedding modes are supported. A TK/SS pin shared by both channels ramps the output voltage during start-up.
