
Isolated DC-DC converter module, 5V/50mA output, 2.97-3.63V input, 78% efficient, -40°C to +105°C operation.
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The QT8B_0305S3UP is a compact, isolated DC-DC converter module designed for point-of-load applications requiring a stable 5V output at 50mA. This module accepts a tightly regulated input voltage range of 2.97V to 3.63V (±10% tolerance around a nominal 3.3V input). Utilizing a fixed-frequency switching topology, the converter achieves a typical efficiency of 78% under nominal operating conditions. Isolation is provided between the input and output stages, offering enhanced system safety and noise immunity. The device is fully encapsulated, enabling reliable operation across a wide temperature range of -40°C to +105°C. Its robust construction and high-temperature performance make it suitable for demanding industrial and embedded applications. The module delivers a maximum output power of 0.25W. Internal filtering minimizes output ripple and noise.