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:
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.