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Does TI has a proper solution for below requirements?
Input: -24V DC
Output: 5V, 100mA, no isolation
If you go to the TI Reference Designs: http://www.ti.com/power-management/reference-designs.html , the closest design we have is an inverting buck-boost PMP20371: http://www.ti.com/tool/PMP20371 .
This could be a good start; you would have to take the design concepts and change to match your requirements.
I will also look for any other solutions we might have. Let me know if you can work from this PMP20371 design.
In reply to LeonardEllis:
Hi Leonard ,
Thanks for the feedback. we also have considered this topology like below. While, the only concern is that: the output 5V (actual 29V) is reference to the -24V input. When the input -24V is not stable (there can be some fluctuation), the output 5V can also have a 1:1 change. this can be a big problem.
Do you have any idea to solve this problem? thanks!
In reply to Bell Ye:
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