
Isolated DC-DC converter module, 3.3V/75.8mA output, 2.9-3.6V input, 0.25W, 73% efficiency, -40°C to +85°C.
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The QS7A_0303S3UP is a compact, isolated DC-DC converter module designed for point-of-load applications. This module provides a tightly regulated 3.3V DC output at a maximum current of 75.8mA, delivering 0.25W of power. It accepts a DC input voltage ranging from 2.9V to 3.6V, representing a ±10% tolerance around a nominal input. The converter utilizes a fixed-frequency switching topology to achieve a typical efficiency of 73%. Galvanic isolation is incorporated for enhanced system safety and noise immunity. The module is designed for robust operation across a wide temperature range, from -40°C to +85°C, making it suitable for industrial and harsh environment applications. Its encapsulated construction provides protection against environmental factors and ensures reliable performance. The module is designed for through-hole mounting onto a PCB. Internal filtering minimizes conducted and radiated emissions.