The LTC3780 is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The constant frequency current mode architecture allows a phase-lockable frequency of up to 400kHz. With a wide 4V to 30V (36V maximum) input and output range and seamless transfers between operating modes, the LTC3780 is ideal for automotive, telecom and battery-powered systems. The operating mode of the controller is determined through the FCB pin. For boost operation, the FCB mode pin can select among Burst Mode® operation, discontinuous mode and forced continuous mode. During buck operation, the FCB mode pin can select among skip-cycle mode, discontinuous mode and forced continuous mode. Burst Mode operation and skip-cycle mode provide high efficiency operation at light loads while forced continuous mode and discontinuous mode operate at a constant frequency. Fault protection is provided by an output overvoltage comparator and internal foldback current limiting. A power good output pin indicates when the output is within 7.5% of its designed set point. Applications * Automotive Systems * Telecom Systems * DC Power Distribution Systems * High Power Battery-Operated Devices * Industrial Control * Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT * Wide VIN Range: 4V to 36V Operation * Synchronous Rectification: Up to 98% Efficiency * Current Mode Control * ±1% Output Voltage Accuracy: 0.8V < VOUT < 30V * Phase-Lockable Fixed Frequency: 200kHz to 400kHz * Power Good Output Voltage Monitor https://elecena.pl/product/259693/high-efficiency-synchronous-4-switch-buck-boost-controller 2007-03-04 https://elecena.pl/product/259693/high-efficiency-synchronous-4-switch-buck-boost-controller 2017-10-09 https://elecena.pl/product/259693/high-efficiency-synchronous-4-switch-buck-boost-controller 2025-01-18