Description
LTC7800HUDC#PBF Linear Technology DC/DC Controller, Synchronous Buck, Step Down, 4V to 60V Supply, 98% Duty Cycle, 2.25Mhz, QFN-20
The LTC7800HUDC#PBF from Linear Technology is a low IQ, 60V, high frequency synchronous step-down controller in 20 pin QFN package. This high performance step-down switching regulator DC to DC controller that drives an all N-channel synchronous power MOSFET stage. A constant frequency current mode architecture allows a phase-lockable frequency of up to 2.25MHz. The 50A no-load quiescent current extends operating run time in battery powered systems. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC7800 features a precision 0.8V reference and power good output indicator. A wide 4V to 60V input supply range encompasses a wide range of intermediate bus voltages and battery chemistries. The output voltage of LTC7800 can be programmed between 0.8V to 24V. The TRACK/SS pin ramps the output voltages during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions.
Manufacturer:Linear Technology
Datasheet:Analog/7800f.pdf
