TPS51206: [TPS51206DSQR] Request circuit and layout review

MJ,

I just want to ensure that there is not an error in the schematic - C2268 and C2271 say 106p and 226p, are these meant to be 10E6p and 22E6p? These capacitors must both be at least 10uF. Similarly, the VDD capacitor must be at least 0.1uF.

I recommend adding a 0-ohm resistor between VTT and VTTSNS, in the event that an issue needs to be debugged in the future that requires breaking the net between these two pins. If a remote sense feature is desired, the connection between VTT and VTTSNS should be made at the load connection point, rather than at the IC.

The VTTREF capacitor is cut off in the image, but a value of 0.22uF is recommended.

I should note that, while the configuration with S3 and S5 should work, it is recommended to power on VDD, then S3/S5, then VLDOIN/VDDQSNS.

Thanks,
Kadeem

Hi, Kadeem

Thanks for the reply.

Due to the customer's request (attached file security matters), I request that the bulletin board be deleted for the inquiry.

Thanks.

Regards,

MJ

MJ,

The attachment has been removed from the thread.

Thanks,

Kadeem