TPS22918: Can connect VIn with ON pin?

Motoyasu Hattori

Part Number: TPS22918

Hi,

I have just confirmed the following.

My customer uses TPS22918 VIN=3.3V. To reducing the board size, is it OK to connect VIN with ON pin directly?

On some case, a few drop on VIN is occurred. But I think ON pin's threshold is roughly 1.0V. So there is no issue to connect VIN with ON pin. Is my understand correct?

Please advise us.

Thanks and best regards,
M.HATTORI.

over 1 year ago

0 Kalin Burnside over 1 year ago

TI__Genius 13300 points

Hello Hattori-san,

Let me confirm that this will not impact the output slew rate and get back to you.

Regards,

Kalin Burnside

0 Motoyasu Hattori over 1 year ago in reply to Kalin Burnside

TI__Genius 9385 points

Hi, Kalin-san,

Any update?

My customer wants to know this answer ASAP.

Thanks and best regards,
M.HATTORI.

0 Elizabeth Higgins over 1 year ago in reply to Motoyasu Hattori

TI__Genius 15565 points

Hi Hattori-san,

As discussed offline, design was able to confirm tying Vin and ON will not have an effect on the output slew rate.

Best Regards,

Elizabeth

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TPS22918: Can connect VIn with ON pin?