>>> For high speed digital output with high driving 
>>> capability (say Pulse
>>> Train Output with 100KHz and 3A driving capability), 
>>> this can be a
>>> challenge. Typically the integrated high side switches 
>>> can not swith
>>> very fast.
>> LMD18200..  And yes it can do digital output.

> I see. It is just nice for 100KHz and 3A. Thanks.


At $US10 in 5000 quantity from Digikey it's a bit dearer 
[tm] in component cost than a discrete solution. Component 
cost is far from the only consideration, but $10 goes a long 
way on such things

But, a nice solution where raw cost is not too important.

        http://www.national.com/ds/LM/LMD18200.pdf


        Russell


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