TPS53355: TPS53355 Review

Kuan Wei Chen (Kevin Chen)

Genius 9710 points

Part Number: TPS53355

Dear Team,

Here is the TPS53355 schematic.

Can you help on final review?

Feel free to drop me a mail if necessary : a0235746@ti.com

Kevin

over 6 years ago

0 JohnTucker over 6 years ago

TI__Guru**** 191445 points

Kevin,

We will get someone to review it.

0 Alec_Heierman over 6 years ago in reply to JohnTucker

TI__Prodigy 580 points

Hi John and Kevin,

I will review this schematic today or tomorrow, and provide feedback no later than tomorrow afternoon.

0 Alec_Heierman over 6 years ago

TI__Prodigy 580 points

Hi Kevin,

First off, this schematic is an excellent example of a well marked up, and fully informative schematic. This shows what specs the end user desires, and makes for a very straightforward review from our end. Thanks to you and to the end user for providing all of the info.

I have a few changes that I recommend:

1) The ripple injection circuit can be adjusted to provide a slightly higher injected voltage (This is a best guess due to the mixed caps on the output)

A) Change R808 to 1.33kOhm

b) Change C741 to 0.047uF

2) Adjust the Vreg pin connections

A) Add a 1uF bypass capacitor to GND

B) Change the R811 connection. It should connect VREG to PGOOD (not GND)

0 Kuan Wei Chen (Kevin Chen) over 6 years ago in reply to Alec_Heierman

TI__Genius 9710 points

Dear Alec,

Thanks for the help.

I will keep you posted!

Kevin

0 Alec_Heierman over 6 years ago in reply to Kuan Wei Chen (Kevin Chen)

TI__Prodigy 580 points

Hi Kevin,

I am going to close the thread for now. If there is anything else that arises when the end user is making the changes, feel free to open the thread back up and I will be glad to assist.