HI TI Expert,
Can you please help to review the schematic of TPS53915?
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
The components values look okay. I would increase the C557 to 2.2uF. Also, consider checking the Cout capacitance against the load transient requirement, using webench on the product folder.
Review the schematic and layout recommendations in the datasheet and evm guide. The schematic does not label the power ground and quiet ground.
Care needs to be applied when laying out the pcb, connect the feedback resistor and trip resistor to the quiet ground.
see the datasheet page 41 and page 35 for agnd and pgnd connection s www.ti.com/.../tps53915.pdf
See the user guide www.ti.com/.../sluuas2b.pdf
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. 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 and
embedded processors, along with software, tools and the industry’s largest sales/support staff.