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1MHz buck converter demo board features eGaN FETs

26 Jun 2013

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Efficient Power Conversion Corp. (EPC) has rolled out what it boasts as a fully functional buck power conversion demonstration circuit, which is a 9-28 V input to 3.3V, 15 A maximum output current, 1MHz buck converter. The EPC9107 uses the EPC2015 eGaN FET in conjunction with the LM5113 100V half-bridge gate driver from TI. The EPC9107 demonstrates the reduced size and performance capabilities of high switching frequency eGaN FETs when coupled with this dedicated eGaN driver, indicated the company.

The EPC9107 demonstration board is 3in square and contains a fully closed-loop buck converter with optimised control loop. The complete power stage including eGaN FETs, driver, inductor and input/output caps is in an ultra compact 0.5 x 0.5in layout to showcase the performance that can be achieved using the eGaN FETs with the LM5113 eGaN driver.

Despite its small size, the board has peak power efficiency greater than 96 per cent and is capable of delivering 15A at 3.3V. To assist the design engineer, the EPC9107 demonstration board is easy to set up and contains various probe points to facilitate simple waveform measurement and efficiency calculation, noted EPC.

A Quick Start Guide containing set up procedures, circuit diagram, performance curves and a bill of material is included with the EPC9107 demo board for reference and ease of use.

EPC9107 demo boards are priced at $195.94 each and are available for immediate delivery from Digi-Key.




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