LTC3789EUFD Datasheet PDF - Linear Technology

●DescripTion

●The LTC®3789 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 600kHz, while an output current feedback loop provides support for battery charging. With a wide 4V to 38V (40V maximum) input and output range and seamless, low noise transitions between operating regions, the LTC3789 is ideal for automotive, telecom and battery-powered systems.

●Features

●Single Inductor Architecture Allows VIN Above, Below or Equal to Regulated VOUT

●Programmable Input or Output Current Feedback Loop

●Wide VIN Range: 4V to 38V

●1% Output Voltage Accuracy: 0.8V < VOUT < 38V

●Synchronous Rectification: Up to 98% Efficiency

●Current Mode Control

●Phase-Lockable Fixed Frequency: 200kHz to 600kHz

●No Reverse Current During Start-Up

●Power Good Output Voltage Monitor

●Internal 5.5V LDO

●Quad N-Channel MOSFET Synchronous Drive

●VOUT Disconnected from VIN During Shutdown

●Adjustable Soft-Start Output Ramping

●Available in 28-Lead QFN (4mm × 5mm) and 28-Lead SSOP Packages

●Applications

●Automotive Systems

●Distributed DC Power Systems

●High Power Battery-Operated Devices

●Industrial Control