Analog Devices Inc. LT8698S Demo Boards DC2688A-A/B

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Analog Devices Inc. LT8698S Demo Boards DC2688A-A/B are configured to evaluate the operation of the LT8698S and LT8698S-1 USB Chargers. The LT8698S and LT8698S-1 USB Chargers are compact, high efficiency, synchronous monolithic step-down switching regulators intended to power the 5V USB VBUS rail with up to 3A from an input voltage as high as 42V.

The exposed pads on the ADI DC2688A Demo Board act as a heat sink and are connected electrically to ground. To keep thermal resistance low, the ground plane is extended as much as possible, and users add thermal vias under and near the LT8698S. Additionally, this grounds planes within the circuit board and on the bottom side.