TPS63030: When TPS63030 is add SS circuit, about Vout and FB are oscillating.

Bob Lee62837

Part Number: TPS63030

Dear Sabrina,

I have a question.
Could you check attached file?

（Question)
About SS circuit from Application report SLVA553.
I would like to connect an R3 resistor between the capacitor C5 and GND.
Is this a problem with the operation?

Best regard.
Bob Lee.

TPS63030_Question_180530.pdf

over 7 years ago

0 Sabrina over 7 years ago

TI__Expert 8420 points

HI Bob,

You can connect the resistor to ground, it has the same function of discharging the capacitor.

Sabrina

0 Bob Lee62837 over 7 years ago in reply to Sabrina

Mastermind 7230 points

Dear Sabrina,

Thank you very much for your answer.
By the way, there was not description this schematic at SLVA553.

What is there any reason?

Best regard.
Bob Lee.

0 Sabrina over 7 years ago in reply to Bob Lee62837

TI__Expert 8420 points

HI Bob,

there is no particular reason, the app note is describing the concept,

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TPS63030: When TPS63030 is add SS circuit, about Vout and FB are oscillating.