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WEBENCH® Tools/TPS54040A: power supply issue

Part Number: TPS54040A

Tool/software: WEBENCH® Design Tools

Hello,

my customer have problem with power unit in his project,

the circuit contain two power units:

1. the circuit no.1 - input 32 volt, output 24v 5A  (he checked the 24v and found it o.k but no current test yet)

2. the circuit no.2 - input 24 volt from circuit no.1, output is 5 volt 0.5A.

circuit no 2 doesn't work at all although it show in WEBENCH that it should work fine.

I  would be glad if you can advise me back if you have alternative solution with the same pinout it will be great as well, thank you. 

Regards, 

Shai Berman