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LT3757 as SEPIC Converter


polfort
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It is posible as the IC acts just as the controller in the circuit. The power switch, voltage divider, current sense, inductors,capacitors are external so by recalculaing their value (full details in the datasheet) you will be able to produce your required output.

Also have a look at this app. note:

http://www.national.com/an/AN/AN-1484.pdf

You could use the output divider to tweak the output voltage but vary it over such a range.

Also you can use LTSPICE to simulate it.

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