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Analog Devices Inc. MAX20810 Integrated Step-Down Switching Regulator is a fully integrated, highly efficient, step-down DC-DC switching regulator with a PMBus interface. The device operates from 2.7V to 16V input supplies, and the output can be adjusted from 0.4V to 5.8V, delivering up to 10A of load current. The switching frequency of the device can be configured from 500kHz to 2MHz, providing design optimization capability in terms of size and performance. MAX20810 utilizes fixed-frequency current-mode control with internal compensation. The IC features a selectable advanced modulation scheme (AMS) to improve performance during fast load transients. Operation settings and configurable features can be selected by connecting pin-strap resistors from the PGM_ pins to the ground or using PMBus commands.
The IC has an internal 1.8V LDO output to power the gate drives (VCC) and internal circuitry (AVDD). The device also has an optional LDO input pin (LDOIN), allowing connection from a 2.5V to 5.5V bias input supply for optimized efficiency. To ensure a robust design, the IC has multiple protections, including positive and negative overcurrent protection, output overvoltage protection, and overtemperature protection. The Analog Devices MAX20810 supports -40°C to +125°C junction temperature operation and is available in a 4.3mm x 6.55mm FC2QFN package, footprint compatible with the MAX20815 and MAX20830.
