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LM2596 overheated NEED SOME HELP


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hey all:

i drew the diagram and connected the circuit according to the datasheet of LM2596, and i checked a few times, i forget to buy a IN5822 diode, so it's not in the board. could this IN5822 trigger this overheating problem?    PS:  the power supply was not hot at all when i use the 5v (in the right of the diagram in the pictures i uploaded), so what could be the problem? i am detecting and i put this here the same time to see if anybody could help me a bit. 

thanks in advance. 

LM2596- 12V.jpg

Changed to 5V.jpg

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