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Prahlad J. Purohit
04/05/06 02:54
Read: 641 times

#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
LDO & Complex Loads.      Prahlad J. Purohit      04/05/06 02:54      
   Device dependant      Oliver Sedlacek      04/05/06 07:49      
   Difficult!        Kai Klaas      04/05/06 11:00      
      Thanx Kai & Oliver.      Prahlad J. Purohit      04/06/06 08:17      
      I do not use "6 hole", no need      Erik Malund      04/07/06 07:41      
   Useful link      Oliver Sedlacek      04/10/06 02:04      

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