Highly Durable 750W Buck DC-DC Converter with Conduction Cooling

TDK has introduced a new series of DC-DC converters ranging from 400W to 750W with conduction cooling, catering to a wide range of power needs.

The TDK-Lambda RGB ruggedised non-isolated DC-DC converter series offers flexibility with input voltages of 9 to 18V, 18 to 32V, or 18 to 60V. The output voltages are adjustable from 0.8 to 8V or 3.3 to 24V, with output currents reaching up to 60A, depending on the power level.

Measuring at 38.1 x 49.5 x 13.0mm and following a 1/16th brick pinout, these converters are encapsulated to ensure shock and vibration performance compliant with MIL-STD-810G standards. The five-sided aluminium case not only reduces radiated EMI but also allows for conduction cooling to a cold-plate, enabling fanless operation.

The RGB DC-DC converter series is specifically designed for harsh environment applications such as medical devices, automated guided vehicles (AGV), industrial mobile robots (IMR), drones, commercial off-the-shelf (COTS) products, industrial machinery, test and measurement equipment, as well as battery-powered devices.

With efficiencies reaching up to 98.5%, these converters can deliver high usable power even in demanding thermal conditions, with case temperatures ranging from -40°C to +115°C. This not only ensures optimal performance but also contributes to extending the battery life of the connected devices.

The key features of the RGB series include an output voltage adjustment pin, negative logic remote on-off, remote sense, input under-voltage protection, over-current protection, and thermal protection. Additionally, an optional adjustable current limit is available to prevent overloads and reduce stress on the input source, converter, and load.

All models in the series are compliant with CE and UKCA standards for the Low Voltage and RoHS Directives, and adhere to the IEC/UL/CSA/EN 62368-1 safety standards. Evaluation boards are also available for testing and development purposes.