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Demonstration circuit 3219A is a 18V, 8A synchronous step-down Silent Switcher 3 with ultralow noise, high efficiency and power density featuring the LT8625S. The input voltage range of DC3219A is 2.7V to 18V. The default demo board setting is 1.0V at 8A maximum DC output current. The LT8625S is a compact, ultralow noise, ultralow emission, high efficiency and high speed synchronous monolithic step-down switching regulator. The uniquely designed combination of the ultralow noise reference and the third-generation Silent Switcher architecture enables the LT8625S to achieve both high efficiency and excellent wideband noise performance. Minimum on-time of 15ns allows high VIN to low VOUT conversion at high frequency.

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