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The DIG69300 is a high-efficiency, high-frequency synchronous step-down DC-DC regulator IC capable of delivering up to 3 A output currents. The DIG69300 operates over a wide input voltage range from 4.5 V to 24 V and integrates with the main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. The COT architecture with a pseudo-fixed switching frequency operation provides a fast transient response and eases loop stabilization. The DIG69300 operates in pulse skip mode, which maintains high efficiency during a light load operation. Protection features include over-current protection and thermal shutdown. The DIG69300 requires a minimal number of readily-available, standard, external components and is available in a space-saving TSOT23-6 package.