2A step-down with synchronous rectification
The TLV62569DRLR is a 2A-capable step-down (buck) converter from Texas Instruments, switching at 1.5MHz and integrating a synchronous rectifier. The input range covers single-cell Li-ion (3.0-4.2V) and 3.3V or 5V regulated rails.
Housed in a SOT-5X3 package (the supplier device package designation for this SOT-563/SOT-666 footprint), the part occupies roughly 1.6 mm × 1.6 mm of board area. The 125°C TJ ceiling means the part can deliver 2A into a 85°C ambient with adequate board copper; at higher ambients the output current must be derated per the thermal impedance in the datasheet.
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