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TPS563211DRLR – Buck Switching Regulator IC 3A SOT-583
The TPS563211DRLR from Texas Instruments is a highly efficient, cost-effective 3A synchronous step-down (buck) converter designed for compact and flexible DC-DC power solutions. Operating over a wide input voltage range of 4.2V to 18V, it is ideal for powering digital ICs, processors, and communication modules from standard 12V or 15V supply rails. The device features Advanced Emulated Current Mode (AECM) control topology, ensuring true fixed-frequency operation and fast transient response without requiring external loop compensation. This makes the TPS563211 simple to design and stable across a wide range of load and line conditions.
The MODE pin offers configuration flexibility, allowing the user to select between Eco-mode for improved light-load efficiency or Force Continuous Conduction Mode (FCCM) for fixed-frequency performance. It also supports Power Good (PG) indication or external soft-start functionality, enabling easy sequencing in multi-rail systems. Integrated protection features such as cycle-by-cycle current limiting, overvoltage protection (OVP), undervoltage protection (UVP), UVLO, and thermal shutdown safeguard the system under all operating conditions. Packaged in a compact SOT-583 (2mmx2mm) package, the TPS563211 delivers high efficiency and performance in space-limited applications.
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