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what's the droop in LDO

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Markie

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In some datasheet, there is the droop pic of Vout trans with Iload.

who can tell me what the cause of droop is?

I think that the droop is come from gold bond wire of Vout. When load transient is

under test, shall we add some resistors to topo of test?
 

The droop can be due to the ESR of the capacitor and the capacitor itself. You are absolutely right, these are related to the transient response of LDOs. Please take a look at the following application note, I think it has a good writeup on the causes of the droops

"Understanding the Load Transient Response of LDOs"
**broken link removed**
 

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    Markie

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