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TPSM63603: can I substitute the S version into my design if the RDHR part is not available, what is the impact?

Robert Correllus
Prodigy 60 points
Part Number: TPSM63603

Tool/software:

TPSM63603RDHR part selected for a design but availability is now limited, what impact does substituting the S version of the part have?

Can I drop TPSM63603SRDHR in the same footprint  what part need to be changed. for 8.5 V output with Rt=10k =>Fsw=1,289kHz.

  • 0
    TI__Expert 5460 points

    Hi Robert,

    The S version has spread spectrum enabled, while the non-S version had spread spectrum disabled. Nothing needs to be changed in the design between the two. As a note, if you are using external sync signal to sync the part, spread spectrum will not be on.

    Thanks,

    Dino