Efficient Power Conversion (EPC) introduces the EPC9177, a reference design board for a single-output synchronous buck converter which operates at a switching frequency of 720 kHz. The converter can convert an input voltage of 48 V, 36 V, or 28 V to a regulated 12 V output voltage while delivering up to 20 A continuous output current.
The EPC9177 reference design board is designed with a small form factor of 21 mm x 13 mm and a low-profile height of 3 mm. The board features the EPC23102, a fully integrated half-bridge ePower™ stage, which helps optimize computing power supplies and USB PD 3.1 multiport chargers. The board also serves as an on-board DC/DC solution, capable of efficiently converting a 28 V to 48 V input to 12 V or 20 V output.
The EPC9177's compact design enables it to be used in space-limited applications while maintaining high efficiency. The low-profile height of the inductor allows for improved thermal performance and facilitates heat dissipation. Furthermore, the converter's digitally controlled operation ensures precise and efficient power delivery, allowing for optimal performance in a wide range of applications.
Overall, EPC's EPC9177 reference design board offers a high-performance, compact, and efficient solution for single-output synchronous buck conversion. With its small form factor, low-profile height, and ability to deliver up to 20 A of continuous output current, the EPC9177 is an ideal choice for applications requiring high efficiency and reliable power delivery in a limited space.
Simple, compact layout that fits within 21 mm x 13 mm
Optimized operating frequency for 48 V to 12 V conversion of 720 kHz
Pre-installed heat-spreader and heatsink
Configured with a low-profile inductor of just 3 mm height
Digitally controlled, allowing implementation of advanced control techniques
High-power USB PD 3.1 chargers
Laptops and mobile phones
eMobility (ebikes, escooters)
Gaming PCs
Power tools
Synchronous buck DC/DC converters
High power density power supplies for computing, industrial, consumers, and telecom power systems
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