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LTC3789 - 4-Switch Buck-Boost Controller

General 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.

Key Features

  • n Single Inductor Architecture Allows VIN Above, Below or Equal to the Regulated VOUT n Programmable Input or Output Current n Wide VIN Range: 4V to 38V n 1% Output Voltage Accuracy: 0.8V < VOUT < 38V n Synchronous Rectification: Up to 98% Efficiency n Current Mode Control n Phase-Lockable Fixed Frequency: 200kHz to 600kHz n No Reverse Current During Start-Up n Power Good Output Voltage Monitor n Internal 5.5V LDO n Quad N-Channel MOSFET Synchronous Drive n VOUT Disconnected from VIN.

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Full PDF Text Transcription for LTC3789 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for LTC3789. For precise diagrams, and layout, please refer to the original PDF.

LTC3789 Features n Single Inductor Architecture Allows VIN Above, Below or Equal to the Regulated VOUT n Programmable Input or Output Current n Wide VIN Range: 4V to 38V ...

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UT n Programmable Input or Output Current n Wide VIN Range: 4V to 38V n 1% Output Voltage Accuracy: 0.8V < VOUT < 38V n Synchronous Rectification: Up to 98% Efficiency n Current Mode Control n Phase-Lockable Fixed Frequency: 200kHz to 600kHz n No Reverse Current During Start-Up n Power Good Output Voltage Monitor n Internal 5.