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sim548c module heating problem

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nagarajkumark

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hi anyone help me. i have one problem. now i am working in sim548c module. i did given to 5v to VCHG pin using lm2576 regulator, next connect the 3.7v li-ion battery to VBAT pin of the module. at the same time regulator and module is totally heated. what to do?
u know that solution please reply shortly.
thanks.
 

nagarajkumark

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ok now i solved that problem. Audio circuit is the new problem in my sim548c module. can u give me any suggestion.
 
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    zar7e7

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