DC2929A

Demonstration circuit 2929A is a 42V, 10A (12A peak) synchronous step-down Silent Switcher 2 with spread spectrum frequency modulation featuring the LT®8638S. The demo board is designed for 3.3V output from a 3.9V to 42V input. The wide input range allows a variety of input sources, such as automotive batteries and industrial supplies. The LT8638S is a compact, ultralow emission, high efficiency and high speed synchronous monolithic step-down switching regulator. The integrated bypass capacitors optimize the fast current loops and make it easier to minimize EMI emissions by reducing layout sensitivity. Selectable spread spectrum mode further improves EMI performance making it perfect solution to the noise sensitive applications.

• Switching frequency of 2MHz(typ) at TA = 25°C
• Efficiency of 92.3% at TA = 25°C

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