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Gallium nitride (GaN) devices offer performance in a small form factor, increasing the efficiency, and reducing the system cost for 48 V power conversion applications. They have been adopted in high volumes in high density computing, as well as many new automotive power system designs.
The combination of the Renesas dual synchronous GaN buck controller and ultra-efficient eGaN® FETs from EPC (Efficient Power Conversion) enables high power density and efficiency with the same BOM size and cost as silicon.
EL SEGUNDO, Calif.— February, 2021 — EPC announces the availability of the EPC9157, a 300 W DC-DC demo board in the tiny 1/16th brick size, measuring just 33 mm x 22.9 mm x 9mm (1.3 x 0.9 x 0.35 in). The EPC9157 demo board integrates the Renesas ISL81806 80 V dual synchronous buck controller with the latest-generation EPC2218 eGaN FETs from EPC to achieve greater than 95% efficiency for 48 V input to 12 V regulated output conversion at 25 A.
Three years ago, the cost of making medium voltage eGaN FETs fell below the cost of equivalently rated power MOSFETs. At that time EPC decided to use the performance and cost advantages of eGaN FETs to aggressively pursue applications with input, or output, voltage around 48 V. Specifically, automotive and computer applications is where 48 V conversion is becoming the new architecture, the new standard for power systems.
Power Systems Design
March 31, 2020
The EPC2050 offers power systems designers a 350 V, 65 mΩ, 26 A power transistor in an extremely small chip-scale package. These new devices are ideal for applications such as multi-level converters, EV charging, solar power inverters, and motor drives.
EL SEGUNDO, Calif. — April 2018 — Efficient Power Conversion announces the EPC2050, a 350 V GaN transistor with a maximum RDS(on) of 65 mΩ and a 26 A pulsed output current. Applications include EV charging, solar power inverters, motor drives, and multi-level converter configurations, such as a 3-level, 400 V input to 48 V output LLC converter for telecom or server power supplies.