EVAL-LT8645SA-AZ

EVAL-LT8645SA-AZ is a 65V, 8A synchronous step-down second generation Silent Switcher® with spread spectrum frequency modulation featuring the LT8645SA. The evaluation board is designed for 5V output from a 5.6V to 65V input. The wide input range allows a variety of input sources, such as automotive batteries and industrial supplies. The LT8645SA is a compact, ultralow emission, high efficiency, and high speed synchronous monolithic step-down switching regulator. The integrated bypass capacitors optimize all the fast current loops and make it easier to minimize EMI/EMC emissions by reducing layout sensitivity. Selectable spread spectrum mode can further improve EMI/EMC performance. Ultralow quiescent current in Burst Mode® operation achieves high efficiency at very light loads. Fast minimum on-time of 40ns enables high VIN to low VOUT conversion at high frequency.

• LT8645SA frequency programmed either through oscillator resistor or external clock(200kHz to 2.2MHz)
• Default frequency of EVAL-LT8645SA-AZ is 2MHz
• 93% efficiency at VIN = 12V, IOUT = 4A