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Current limit for monolithic buck (LTC36460?

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T

treez

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Hello,
The LTC3646 Monolithic Buck controller has an internal “Valley Switch Current limit” of 1.2A (tolerance from 0.9A to 1.5A)

So this means that it has a consant on-time, and then the inductor current falls back to some current level from 0.9A downwards? (depending on load)

http://cds.linear.com/docs/en/datasheet/36461fc.pdf
 

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