LM25574MT/NOPB – TEXAS INSTRUMENTS

The Texas Instruments LM25574MT/NOPB is a monolithic, synchronous step-down converter housed in a compact 16-pin, 4mm x 4mm QFN package (with exposed thermal pad). Optimized for high-efficiency operation in demanding applications, it features a wide input voltage range of 4.5V to 28V, enabling its use across various power supply architectures. The device boasts a switching frequency of 1.2MHz, minimizing external component size and enabling efficient operation even with smaller inductors. Its internal synchronous rectification significantly reduces conduction losses, resulting in high efficiency (typically >90%) across a broad load range._x000D_
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The LM25574MT/NOPB integrates features like soft-start, overcurrent protection, and thermal shutdown, enhancing system robustness. Its adjustable output voltage, programmable via an external resistor divider, allows for flexible voltage scaling. Common applications include powering high-performance microprocessors, ASICs, and FPGAs in space-constrained designs, as well as powering portable devices requiring high efficiency and long battery life. The device’s small size and high efficiency make it particularly advantageous in applications where minimizing board space and maximizing power efficiency are critical design parameters. The “NOPB” suffix indicates lead-free packaging, conforming to RoHS standards.