
Isolated DC-DC converter module: 2.97-3.63V input, 3.3V/76mA output, 0.25W, 78% efficiency, -40°C to +105°C operation.
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The QT8B_0303S3UP is a compact, galvanically isolated DC-DC converter module designed for point-of-load applications requiring a stable 3.3V output. This module accepts a wide input voltage range of 2.97V to 3.63V (±10% nominal) and delivers a regulated 3.3V output at 76mA, providing a maximum output power of 0.25W. The isolation barrier provides robust protection against ground loops and noise, enhancing system reliability. The converter exhibits a typical efficiency of 78%, minimizing power dissipation. It is designed for operation across a wide temperature range of -40°C to +105°C, making it suitable for harsh industrial environments. The module employs fixed-frequency switching topology to minimize output ripple and noise. Internal filtering and regulation circuitry ensure stable performance under varying load and input voltage conditions.