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LM5085MY/NOPB

Part Number: LM5085

Tool/software:

Hello, I have designed a buck converter circuit using LM5085MY/NOPB for 5V 10A output. The input voltage voltage range is between 12V-30V. 

The circuit is working fine for input voltage range 12-18V and giving stable 5V output.

When input is between 19V- 24V the output drops to 4V which is unexpected.


If i increase input voltage between 24V-30V, output increases to 5V.

In short, 

For 12V-18V input - 5V output.

For 19V-24V input- ~4V output.

For 25-30V input- 5V output.

I require constant 5V output which can able to handle load of up to 10A. 

I'm sharing circuit for reference. thanks in advance.