DC2918A

DC2918A demonstration circuit is a 42V, 5A synchronous stepdown SILENT SWITCHER with spread spectrum frequency modulation featuring the LT®8636. The wide input range allows a variety of input sources, such as automotive batteries and industrial supplies. The LT8636 is a compact, low emission, high efficiency, and high frequency synchronous monolithic step-down switching regulator. The proprietary silent switcher architecture minimizes electromagnetic emissions with simplified filter and reduced layout sensitivity. Selectable spread spectrum mode further improves EMI performance making it perfect solution to the noise sensitive applications. The regulator’s ultralow 2.5μA quiescent current with the output in full regulation enables applications requiring highest efficiency at very light load currents, such as automotive and battery powered portable instruments.

• Demo board is designed for 5V output from a 5.8V to 42V input
• 5A min maximum output current (derating is necessary for certain VIN and thermal conditions)
• 2MHz max switching frequency at TA = 25°C
• 93.6% typ efficiency at DC (VIN = 12V, IOUT = 3A, TA = 25°C)