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12Vin to 5V@25A Using Very Low DCR Current Sense

2018-05-03 23:53  
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The LTC3866 is especially well suited to low voltage, high current supplies because of a unique architecture that enhances the signal-to-noise ratio of the current sense circuit. This allows it to operate with the small sense signals produced by very low DCR, 1mΩ or less, inductors, which are used to improve power efficiency in high current supplies. The improved SNR minimizes jitter due to the switching noise, which could corrupt the signal. The LTC3866 can sense a DCR value as low as 0.2mΩ with careful PCB layout.

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