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penalty. Making the switching transitions faster reduces switching losses and thus allows for much higher switching frequencies. One exam- ple of this innovation is the LTC3310S, which can operate at 5 MHz switching frequency, ena- bling extremely compact designs with very low cost external components. POWER MANAGEMENT IS A NECESSITY BUT CAN BE ENJOYABLE TOO In this tutorial we looked at many aspects of power supply design, including the different power supply topologies and their advantages and disadvantages. For power supply engi- neers, this information can be very basic, but for experts and non-experts alike, it is helpful to have software tools such as LTpowerCAD and LTspice to aid in the design process. With these tools, power converters can be designed and optimized in very little time. Hopefully this tutorial inspired you to look forward to your next power supply design challenge. ABOUT THE AUTHOR Frederik Dostal studied microelectronics at the University of Erlangen in Germany. Starting work in the power management business in 2001, he has been active in various applications positions including four years in Phoenix, Arizona, where he worked on switch-mode power supplies. He joined Analog Devices in 2009 and works as a field applications engineer for power management at Analog Devices in München. Cover Story Collaborate with the Experts Enjoy design cycle support for your latest innovation with Analog Devices on Arrow.com Arrow offers a full portfolio and expert advice on Analog Devices products and solutions for industrial, medical, communications, consumer, automotive and other applications.