
Isolated DC-DC converter: 4.5-5.5V in, 12V/20.8mA out, 0.25W, 78% efficiency, -40°C to +105°C operation.
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The QT8B_0512S3UP is a compact, isolated DC-DC converter module designed for point-of-load applications requiring a stable 12V output. It accepts a 4.5V to 5.5V input, with a tolerance of ±10%, and delivers a regulated 12V output at 20.8mA, providing a power output of 0.25W. This module incorporates robust galvanic isolation, enhancing system safety and reducing ground loop issues. Its high efficiency of 78% minimizes power dissipation and heat generation, contributing to reliable operation across a wide temperature range of -40°C to +105°C. The converter utilizes a fixed-frequency switching topology to ensure stable performance and low output ripple. Internal filtering and shielding minimize EMI/RFI emissions, simplifying system integration. The QT8B_0512S3UP is ideally suited for applications demanding a small footprint, high isolation, and reliable DC power conversion in harsh environments.