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Buck-Boost DC-DC Converters Deliver 300W

TDK has announced the addition of 12.5A 300W rated models to the i7C non-isolated DC-DC converter series. With an input range of 9 to 53Vdc, the output can be adjusted from 5 to 28V. The i7C topology enables a seamless transition from buck (voltage reduction) to boost (voltage increase) operation. The series is ideal for generating additional high-power outputs, from existing 12, 24, 36 or 48V system voltages, in medical, communications, industrial, test and measurement and battery powered equipment.

Efficiencies of up to 96% minimize power losses, allowing the product to operate and deliver high useable power in demanding thermal environments, says TDK. Under light load conditions, the i7C’s control techniques significantly reduce power dissipation. A 5mA input current draw is typical under zero load conditions. This can be reduced to typically 0.25mA when the remote on-off is utilized to place the unit in standby mode. The low quiescent current allows battery powered equipment to remain functional longer during periods of non-operation.

The basic feature models include an output voltage adjustment pin, positive or negative logic remote on-off, positive remote sense, plus input under-voltage, over-current and thermal protection. The full-featured models are equipped with a power good signal, output current monitoring and the ability to synchronize the operating frequency to minimize system noise.

All the i7C converters measure 34mm x 36.8mm and follow the industry standard 1/16th brick pin-out. Three mechanical configurations are available – a low 12.2mm high open frame model, a baseplate construction for conduction cooling or with an integral heat sink for convection or forced air cooled environments. The design of the i7C reduces the number of external components, saving both cost and board space.

All models are certified IEC/UL/EN 62368-1, 60950-1 and carry the CE mark for the Low Voltage and RoHS Directives.

Main Features and Benefits

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  • Up to 300W in a 1/16th brick pin-out
  • Up to 96% efficient with low off-load power consumption
  • Wide 5 to 28V output adjustment
  • Wide 9 to 53Vdc input range
  • Low component count with minimal external components
  • Low airflow with minimal derating requirements

TDK-Lambda | www.us.lambda.tdk.com


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