• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 64 subscribers
  • Views 131 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS745-Q1: TPS74512PQWDRVRQ1 En Pin

Harish S1
Prodigy 70 points
Part Number: TPS745-Q1

Tool/software:

Hi,

For TPS74512PQWDRVRQ1 1.2V fixed o/p LDO , can we have the Enable voltage greater than the VIN supply i/p Voltage ,in my case Vin is 1.8V ,  Enable to the LDO is connected to a GPIO with 3.3V logic.

I am afraid of any clamp diode inside LDO's  EN pin  that would clamp because of higher En voltage than the Vin.

Regards,

Harish.S

  • 0
    TI__Genius 14075 points

    Hello Harish,

    Thank you for your question.

    Yes, it is okay to have the EN voltage be larger than the input voltage.

    Please make sure that there is enough of a differential between Vin and Vout for the LDO to regulate properly.

    Best,

    Hannah