LM5165YDRCT – TEXAS INSTRUMENTS

The Texas Instruments LM5165YDRCT is a 40V, 5A synchronous step-down converter in a compact 16-pin WSON package. It features a wide input voltage range of 4.5V to 40V, making it suitable for applications with fluctuating input power sources. The device operates with a switching frequency of 500kHz, enabling the use of smaller, less expensive external components. Its internal 5A switch allows for efficient power delivery to loads requiring currents up to 5A, while its integrated high-side and low-side MOSFETs minimize external component count and improve efficiency. The LM5165YDRCT employs a current-mode control architecture for improved transient response and loop stability. Protection features include overcurrent, overtemperature, and undervoltage lockout, enhancing system reliability. Typical applications include industrial control systems, battery-powered equipment, and automotive electronics where a compact, high-efficiency, and robust DC-DC converter is required. Its high efficiency, even at light loads, contributes to extended battery life in portable devices. The device’s ease of use, thanks to its minimal external component needs, simplifies design and reduces PCB space.