QS4E_4805S3U – GAPTEC

The QS4E_4805S3U is a compact, isolated DC-DC converter module designed for applications requiring a tightly regulated 5V output at 50mA. This module accepts a wide input voltage range of 43.2V to 52.8V (nominally 48V ±10%), providing robust performance in environments with fluctuating power sources. Utilizing a fixed-frequency switching topology, the converter achieves a typical efficiency of 76% across the specified input range. The isolation barrier is designed to withstand high voltage stress, ensuring safe operation and preventing ground loops. The device is rated for operation across a wide temperature range of -40°C to +85°C, making it suitable for harsh industrial and outdoor environments. The module delivers a maximum output power of 0.25W and incorporates internal protection features, including short-circuit and over-temperature protection, enhancing system reliability. Its small form factor facilitates easy integration into space-constrained applications.