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Optimizing TPS6206x external component selection

Posted: 09 Feb 2011 ?? ?Print Version ?Bookmark and Share

Keywords:TPS6206x? LC output filter? internal compensation network?

The TPS6206x internal compensation network is optimized for an LC output filter composed of a 1-?H inductor and a 10-?F ceramic capacitor. The device is designed to operate with nominal inductor values of 1?H to 1.2?H and with ceramic capacitor values of 10?F to 22?F. By selecting the proper feedforward capacitor, a wider range of output inductors and capacitors can be used with the TPS6206x. Adjusting these three components can optimize the device for smaller solution size, faster load-step response, lower output voltage ripple, increased output current, and/or increased control loop stability. This application report can be used with any of the TPS62060, TPS62065, or TPS62067 3-MHz, synchronous step-down converters.

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