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Part Number: TPS65130
I reviewed your design and I do not see a problem schematically. So it could perhaps be some board assembly issue. Another possible cause could be the connection between different grounds on the board since you have them separated on the board and connected through ferrite beads. I would suggest to try connecting them through hard-wire at various points on the board to see this changes the behavior in any way. If not, I would focus on checking board assembly to debug this further.
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In reply to Liaqat Khan:
The issue is still not solved. Please check the layout and kindly provide your valuable suggestions.
Thanks & Regards,
In reply to Rudra Prakash:
As I had suggested earlier, schematically I don't see any problem that should cause 2V for boost output instead of 9V. So it could be some board assembly issue and perhaps the device is not soldered properly. So you will have to check and debug that on your end. I do not see the bottom layer copper in the layout so it is hard for me to see how the two GND islands are connected. As an experiment, I suggest to replace ferrite bead FB1 with a solid wire and also connect AGND and GND together at many other points on the board to see if makes any difference.
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