QS4A_2409S1.5UP – GAPTEC

The QS4A_2409S1.5UP is a compact, isolated DC-DC converter module designed for embedded applications requiring a stable 9V output. It accepts a wide input voltage range of 21.6V to 26.4V (nominally 24V, with a ±10% tolerance), providing a regulated 9V output at 28mA. The module delivers 0.25W of output power with a typical efficiency of 75%. Galvanic isolation is incorporated to provide electrical separation between the input and output stages, enhancing system safety and reducing ground loop issues. The QS4A_2409S1.5UP operates across a wide temperature range from -40°C to +105°C, making it suitable for harsh environments. This converter utilizes a flyback topology to achieve high efficiency and compact size. Internal protection features include short-circuit protection (SCP) and over-temperature protection (OTP), ensuring reliable operation and preventing damage under fault conditions.