DC2506A

DC2506A demonstration circuit is a high voltage, current mode DC/DC step-down converter featuring the LTC3894. The board operates from an input range of 6V to 150V and provides a 5V, 3A output. The PMOSFET architecture allows it to operate seamlessly up to 100% duty cycle, and function as a saturated switch below the regulation threshold. This application has undervoltage lockout programmed for a 6V minimum input to assure adequate gate drive for the MOSFET. It operates at 150KHz and may be synchronized to an external clock. A soft-start feature controls output voltage slew rate at start-up, reducing current surge and voltage overshoot. Burst Mode operation that improves efficiency at light loads can be enabled with a jumper. A power good output signal is provided. This board is suitable for a wide range of automotive, telecom, industrial, and other applications.

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