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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?
 

v_c

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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**
 

    Markie

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