QT8B_0309S3UP – GAPTEC

The QT8B_0309S3UP is a compact, isolated DC-DC converter module designed for point-of-load applications requiring a stable 9V output. This module delivers 28mA, providing a maximum output power of 0.25W. It accepts a tightly regulated input voltage range of 2.97V to 3.63V (nominally 3.3V ±10%). The isolation barrier provides galvanic isolation, enhancing system safety and reducing ground loop issues. Employing a fixed-frequency switching topology, the converter achieves a typical efficiency of 78% across its specified input range. The robust design allows for reliable operation across a wide temperature range, from -40°C to +105°C, making it suitable for harsh industrial environments. The module’s internal circuitry includes protection against short circuits and over-temperature conditions, ensuring operational longevity and system integrity. Its small footprint facilitates easy integration into densely populated PCBs.