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04/05/06 08:54
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#113641 - LDO & Complex Loads.
Dear Friends [ specially Kai ],

I remember Kai telling LDOs dont like complex loads. I am planning to use LM2937 & LM2990 in an application. Does this complex has anything to do with the ESR of output capacitor which is specified as maximum few ohms [ 3Ohms for LM2937 ]. What are the traps and tricks with using these LDOs. I am planning to use them for feeding an opamp with +5V and -5V in following manner. and also a separate LM2935 for micro.

---LDO---10uF at LDO ----- --- 47uF electrolytic || 100nF ---->100E + 6 hole ferrite --->47uF aluminum electgrolytic || 100nf --->OpAmp/micro.

Can the above ldos work with mentioned configuration.

Thanks & Regards,
Prahlad Purohit

List of 6 messages in thread
TopicAuthorDate
LDO & Complex Loads.            01/01/70 00:00      
   Device dependant            01/01/70 00:00      
   Difficult!            01/01/70 00:00      
      Thanx Kai & Oliver.            01/01/70 00:00      
      I do not use "6 hole", no need            01/01/70 00:00      
   Useful link            01/01/70 00:00      

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