LM25575MH/NOPB – TEXAS INSTRUMENTS

The Texas Instruments LM25575MH/NOPB is a monolithic, synchronous step-down converter optimized for high-efficiency power conversion in space-constrained applications. Specifically designed for input voltages ranging from 4.5V to 18V, it delivers a regulated output current up to 5A with a switching frequency of 1.2MHz. This high switching frequency allows for the use of smaller, less expensive output inductors and ceramic capacitors, minimizing board space. The device features integrated high-side and low-side MOSFETs, eliminating the need for external components and simplifying design. The LM25575MH/NOPB employs pulse-width modulation (PWM) control for precise output voltage regulation, and incorporates features like soft-start and cycle-by-cycle current limiting for enhanced stability and protection. Packaged in a 16-pin, 3mm x 3mm QFN (quad flat no-lead) package, it’s ideal for portable devices, industrial equipment, and automotive applications requiring high-power density and efficiency. Its advantages include reduced external component count, high efficiency exceeding 95% at typical loads, and excellent transient response, making it a strong choice where compact size and robust performance are critical. The “NOPB” designation indicates a lead-free, halogen-free package.