EVAL-LT8641A-AZ

EVAL-LT8641A-AZ is an evaluation circuit (demo board) for 65V, 3.5A/5A peak synchronous step-down silent switcher with spread spectrum frequency modulation featuring the LT8641A. The demo board is designed for 5V output from a 5.5V to 65V input. The wide input range allows a variety of input sources, such as automotive batteries and industrial supplies. The LT8641A is a compact, ultralow emission, high efficiency, high speed synchronous monolithic step-down switching regulator. Top and bottom power switches, compensation components, and other necessary circuits inside the LT8641A minimize external components and simplify design. The special Silent Switcher architecture minimizes EMI emissions. The selectable spread spectrum mode can further improve EMI performance. Ultralow 2.5μA quiescent current in Burst Mode® operation achieves high efficiency at very light loads. Fast minimum on-time of 35ns enables high VIN to low VOUT conversion at high frequency.

• Input voltage range from 5.5 to 65V
• Default output voltage range from 4.80 to 5.2V
• Maximum continuous output current is 3.5A
• Switching frequency range from 1.85 to 2.15MHz
• Efficiency of 94%

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