TPS65235: Difference between TPS65235 and TPS65235-1

Jack Shen2

Part Number: TPS65235

May I know the main difference between TPS65235 and TPS65235-1? By comparing the both datasheets, it seems like the only difference is the support of FCCM.

I have two questions:

If we are not using FCCM mode, then TPS65235 could simply replace TPS65235-1, right?
If the FCCM mode is used, then what needs to be considered when replacing TPS65235-1 with TPS65235?

Thanks.

over 2 years ago

0 Jack Shen2 over 2 years ago

TI__Expert 4055 points

May I follow up with you about the questions in below?

If we are not using FCCM mode, then TPS65235 could simply replace TPS65235-1, right?
If the FCCM mode is used, then what needs to be considered when replacing TPS65235-1 with TPS65235?

Thanks.

0 Zhao Ma over 2 years ago in reply to Jack Shen2

TI__Genius 15135 points

Hi,

1. Yes.

2. We can replace them each other.

But please note: When Vout is close to Vin, TPS65235 might have tiny audible noise, but TPS65235-1 doesn't have.

0 Jack Shen2 over 2 years ago in reply to Zhao Ma

TI__Expert 4055 points

Thank you for the reply.

For the second question,

If the Vin is 12V and Vout is 13.4V, then would TPS65235 have audible noise?

Thanks.

+1 Zhao Ma over 2 years ago in reply to Jack Shen2

TI__Genius 15135 points

Yes, TPS65235 will have audible noise at light loading, but the sound is small.

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TPS65235: Difference between TPS65235 and TPS65235-1