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can't get LM5010AMH work please help

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ahsoopk

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hi everyone,

i am using LM5010AMH step down voltage regulator in my circuit and circuit is given below but i am getting only 2.1V instead of 5V.. can some one look at it and see what am i doing wrong because i followed instructions from datasheet.

regulator circuit.JPG

many thanks,
 

Shouldn't the diode -- which now is between ISEN and BST -- be between ISEN and SW ?
 

yes Erikl you are right but still as soon i connect load to it output voltage drops from 6.5v to 2.2v..
 

ahsoopk said:
... as soon i connect load to it output voltage drops from 6.5v to 2.2v..
Click to expand...

Perhaps your load draws too much current, is defective, is (sort of) short circuit? Try another load, e.g. a 6V or 12V bulb.
 

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