As the performance of servers, notebook PCs and graphics cards increases, their power consumption grows as well. At the same time, the trend toward lower operating voltages for components such as CPUs, graphics processing units (GPUs), memory devices and ASICs results in increased current flow. This creates a need for DC/DC converters capable of handling low voltages and large currents.
Renesas 12th-generation power MOSFETs, the RJK0210DPA, RJK0211DPA and RJK0212DPA are now available for service in DC/DC converters, which operate by having two power MOSFETs, one for control and the other for synchronous rectification, switching on and off alternately to convert the voltage. For example the new RJK0210DPA MOSFET is used for control and the Renesas Electronics 11th generation RJK0208DPA device can be used for synchronous rectification.
Refinements to the manufacturing process allow the new Renesas MOSFETs to achieve approximately 40 percent improvement in FOM (figure of merit; on-state resistance times gate charge) compared to the company’s existing products, which contributes to reduction of the power loss during voltage conversion and thereby enables highly efficient DC/DC converter performance.
Using the Renesas Virtual Power Lab MOSFET Design Tool lets you check out these and other MOSFETs without the hassle of waiting for device samples, then having to solder the parts down on test boards. You can find it online athttp://am.renesas.com/products/discrete/power_mos/vp/vp_landing.jsp .
This tool lets engineers evaluate various solutions in a virtual real-time environment to facilitate the selection of optimum MOSFET combinations for synchronous buck-converter applications. Among its benefits: helping you find the right MOSFETs and interactively get help designing your sync buck converter application; analyzing performance, switching behavior and efficiency of your new buck converter design; evaluating MOSFET behavior under a variety of operating conditions using an interactive datasheet and downloading SPICE models.