TL1963ADCQT – TEXAS INSTRUMENTS

The Texas Instruments TL1963ADCQT is a monolithic, synchronous step-down converter housed in a compact 6-pin WSON package. This device features a 3A continuous output current capability and operates from a wide input voltage range of 2.7V to 5.5V, making it suitable for applications with fluctuating supply voltages. Its internal synchronous rectification significantly improves efficiency, typically exceeding 90% at 3A load. The TL1963ADCQT incorporates a precise internal 1.23V low-dropout (LDO) regulator for the internal bias circuitry, ensuring stable operation even under light load conditions._x000D_
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Key features include adjustable output voltage via external resistor divider, soft-start capability minimizing inrush current, and a selectable frequency range for noise optimization. The device’s integrated protection features encompass overcurrent, overtemperature, and short-circuit protection, enhancing system robustness. Common applications include powering mobile devices, portable instrumentation, and other battery-powered systems requiring a regulated low-voltage supply with high efficiency and compact footprint. Its high efficiency and small size are particularly advantageous in space-constrained portable designs where minimizing power loss and maximizing battery life are paramount. The device’s inherent stability and protection features simplify design and reduce component count.