Enpirion Introduces New PowerSoC family of DC-DC Converters for DDR2/DDR3 Memory Termination Supply (VTT) Applications

Enpirion today announced the introduction of the first two members of a family of PowerSoC DC-DC converters for DDR2/DDR3 VTT applications: the 8 Amp EV1380 and the 4 Amp EV1340. These low-power switch-mode converters are complete power systems on a chip (PowerSoC), achieving up to 94% efficiency and integrating the inductor, power switches, gate drive, controller, and loop compensation, all in a tiny QFN package: (8A) 8 mm x 11 mm x 3mm and (4A) 10 mm x 5.5 mm x 3 mm. 

Enpirion’s family of PowerSoC products has been designed specifically for VTT applications to provide the best-in-class combination of solution size and efficiency.  The trend to increase the number of memory modules and their capacity in enterprise products such as servers is creating the need for high efficiency VTT solutions in order to minimize power loss. This needs to be achieved within a smaller PCB footprint, while still meeting the DDR2/DDR3 requirements for tracking accuracy and AC + DC regulation.

“PwrSoC products are especially suited for applications such as DDR memory termination because they deliver the best combination of solution size and efficiency,” said Jeff Shepard, president of Darnell Group (a power electronics analyst firm). “Enpirion’s new VTT family of PwrSoCs is an example of a solution that helps customers reduce power loss in their designs without sacrificing precious PCB area.”

Most VTT applications today utilize inefficient Low Drop Out (LDO) solutions.  In a typical high-end server application, the Enpirion EV1380 can reduce the power loss by more than 13W over a LDO without sacrificing PCB area.  Industry sources cite for every Watt saved in the server design, the end customer will save up to $8.00 in power and cooling operating expenses over the life of the server.  Using Enpirion’s EV1380, the end customer can save more than $100 of power and cooling expenses over the life of the server.  This is a significant power savings for products looking for ways to improve energy efficiency, especially those targeting compliance with industry standards such as EnergyStar.         

Leading OEMs in the enterprise segment are already designing with Enpirion’s new PowerSoC products for VTT applications. The EV13xx PowerSoC products require very few external components, resulting in simplified board design and layout, as well as improved manufacturability and reliability.


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