Datasheet Analog Devices LTC3802EUH#PBF — Даташит

LTC3802
Dual 550kHz Synchronous
2-Phase DC/DC Controller with
Programmable Up/Down Tracking U FEATURES
■ ■ ■
■
■
■ ■
■
■
■
■
■ DESCRIPTIO The LTC®3802 is a dual switching regulator controller
optimized for high efficiency step-down conversion from
input voltages between 3V to 30V. The controller uses a
leading edge modulation scheme to allow extremely low
duty cycle operation. The constant frequency voltage mode
controller allows a phase-lockable frequency between
330kHz and 750kHz. Power loss and noise due to the ESR
of the input capacitors are minimized by operating the two
controller output stages 180° out of phase. The synchronous buck architecture automatically shifts to Burst Mode
operation as the output load decreases, ensuring maximum efficiency over a wide range of load currents. Wide VIN Range: 3V to 30V Operation with Line
Feedforward Compensation …