TPS56428: TPS56428

eli

Part Number: TPS56428

According to datasheet for TPS56428,section 9.2.2.5, 0.47uF capacitor is mandatory @ VREG5 pin

We would like to change the value of this capacitor to a value that is common in our design(>0.47uF)

I don't see any problem to change the value, nevertheless since TI mentioned the 0.47uF as a must value, I need them to approve using different value

Please advise

0 Gavin Wang (Zejing) over 7 years ago

0.47uF is typical. Internally it is a LDO. For a LDO, output cap affects the loop.

0 eli over 7 years ago in reply to Gavin Wang (Zejing)

Guru 13485 points

From your answer I conclude that we can ignore the info in section 9.2.2.5

and it is allowed to use 1uF. Right?

0 Andy Chen over 7 years ago in reply to eli

Hi,

1uF is Ok for VREG5 bypassing, voltage rating must be >10V.

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