DC2641A

Demonstration circuit 2641A is a single output synchronous buck converter featuring the LTC7801EUFD in the 24-lead QFN package. The input voltage range is from 16V to 100V and the output is 12V/10A. The DC2641A is configured with a sense resistor for overcurrent protection. Inductor DCR current sensing is optional. The board has a lot of features including an optional on-board NMOS LDO for DRVCC, a switch-mode power supply for EXTVCC, jumper selectable 100% duty cycle operation in dropout, a mode selector pin that allows the converter to run in CCM, pulse-skip, adjustable burst clamp or default Burst Mode® operation, a PGOOD output voltage monitor and PLLIN for PolyPhase® operation.

• Default operating frequency (typical) of 150KHz
• External clock sync frequency range from 75KHz to 850KHz
• Typical full load efficiency of 95.3% (VIN = 48V, VOUT = 12V, IOUT = 10A, fSW = 150KHz)

Opombe

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