TPSM63606: EN/SYNC for IBB topology

Teh Sek Khong

Prodigy 25 points

Part Number: TPSM63606

The EN voltage rising threshold is 1.263V.

The EN/SYNC is reference -VOUT ( Figure 9-12. Circuit Schematic in datasheet ) for IBB topology.

Is the RENB calculation using Equation 7 (reference to AGND) still valid?

Need help on how to obtain the 8.9V Vin(on) Figure 9-12?

over 1 year ago

0 Henry Kou over 1 year ago

TI__Expert 3766 points

Hi,

For an IBB topology, the RENB calculation would be relative to -VOUT, and not AGND, therefore a different equation would need to be used. Please refer to the following app note written by my colleague on implementing IBB topology with buck converters. And let me know if you have further issues, thanks.

https://www.ti.com/lit/pdf/snva856

Regards,

Henry

0 Teh Sek Khong over 1 year ago in reply to Henry Kou

Prodigy 25 points

The app note helped. I had cleared my doubts. Thank you.

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TPSM63606: EN/SYNC for IBB topology