DC2019B

DC2019B is a demonstration circuit featuring LT®8614, 42V, 4A micropower synchronous step-down Silent Switcher™. The wide input range allows a variety of input sources, such as automotive batteries and industrial supplies. The LT8614 is a compact, ultralow emission, high efficiency and high speed synchronous monolithic step-down switching regulator. The integrated power switches and inclusion of all necessary circuitry reduce the components count and solution size. Special Silent Switcher architecture minimizes EMI/EMC emissions. Ultralow 2.5µA quiescent current in Burst Mode® operation achieves high efficiency at very light loads. Fast minimum on-time of 30ns enables high VIN to low VOUT conversion at high frequency.

• Input supply range from 5.8 to 42V
• 5V typ output voltage
• 4A min value of maximum output current (derating is necessary for certain VIN, thermal conditions)
• Switching frequency range from 1.85 to 2.15MHz
• 91.3% typ efficiency at DC