LTC3850 LTC3850EGN LTC3850IGN LTC3850EGN-1 LTC3850IGN-1 -Dual, 2-Phase Synchronous Step-Down Switching Controller
The LTC3850 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 features a precision 0.8V reference and a power good output indicator. A wide 4V to 24V (28V maximum/30V for LTC3850I) 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 is available in low pro?le 28-pin 4mm x 4mm, 4mm x 5mm QFN and narrow SSOP packages.
Origin : Mainland China
Model Number : LTC3850
Condition : New
Type : Voltage Regulator