Part No.: | LTC3850-2 |
Page: | 36 Pages |
Size: | 882 KB |
Manufacturer: | Linear Technology |
Logo: | |
Views: | 2 |
Update Time: | 2024-01-19 10:26:03 |
DataSheet: | Download |
Part No. | Packing | SPQ | Marking | MSL | Pins | Temp Range | Package Description | Buy |
Part No. | Packing | SPQ | Marking | MSL | Pins | Temp Range | Package Description | Buy |
LTC3850IGN-2#PBF | Tube | 49 | LTC3850GN-2 | 1 | 28 | -40°C ~85°C | 28-Lead Narrow Plastic SSOP | |
LTC3850IGN-2#TRPBF | Reel | 2500 | LTC3850GN-2 | 1 | 28 | -40°C ~85°C | 28-Lead Narrow Plastic SSOP | |
LTC3850IGN-2#TRMPBF | Reel | 500 | LTC3850GN-2 | 1 | 8 | -40°C ~85°C | 28-Lead Narrow Plastic SSOP | |
LTC3850IGN-2#WPBF | Tube | 49 | LTC3850GN-2 | 1 | 28 | -40°C ~85°C | 28-Lead Narrow Plastic SSOP | |
LTC3850IGN-2#WTRPBF | Reel | 2500 | LTC3850GN-2 | 1 | 28 | -40°C ~85°C | 28-Lead Narrow Plastic SSOP | |
LTC3850IGN-2#WTRMPBF | Reel | 500 | LTC3850GN-2 | 1 | 8 | -40°C ~85°C | 28-Lead Narrow Plastic SSOP |
The LTC3850-2 is a high performance dual synchronous step-down switching regulator controller that drives all N-channel power MOSFET stages. A constant-frequency current mode architecture allows a phase-lockable frequency of up to 780kHz. Power loss and supply noise are minimized by operating the two controller output stages out of phase.
OPTI-LOOP® compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3850-2 features a precision 0.8V reference and a power good output indicator. A wide 4V to 30V input supply range encompasses most battery chemistries and intermediate bus voltages.
Independent TK/SS pins for each controller ramp the output voltages during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions. The MODE/PLLIN pin selects among Burst Mode® operation, pulse-skipping mode, or continuous inductor current mode and allows the IC to be synchronized to an external clock.
The LTC3850-2 is identical to the LTC3850-1, except they have different pin assignments.