TPS7A8300: TPS7A8300

prabakaran P

Part Number: TPS7A8300

Hello Team,

I am using TPS7A8300RGRR in one of my project for 5V to 3V3 Conversion.

In that, the Power Good (PG) Pin is always in Low state (i.e 0V) even the VIN, EN & VOUT are within the range (i.e Both I/P & O/P Voltages are fine).

I have connected PG pin with Vout(3V3) using 10K Pullup resistor (as per datasheet).

Please guide me to resolve the issue (i.e to make PG pin to High).

Also Let me know What are the parameters to be verified to make PG pin to high.

Note: In my design I am not using SENSE & BIAS pins. (left open)

Thanks & Regards,

Prabakaran P

0 Nick Butts over 1 year ago

Hi Prabakaran,

Can you share the schematic for the TPS7A8300? I am wondering how the output voltage is configured.

Thanks,

Nick

0 prabakaran P over 1 year ago in reply to Nick Butts

Hii NIck Butts,

Herewith I have attached the schematic. In that The GND pin is not shown due to error. Remains are shown. Let me know if you need any.

Thanks & Regards,

Prabakaran P

0 Nick Butts over 1 year ago in reply to prabakaran P

Hi Prabakaran,

I don't see anything obviously wrong with your schematic. Have you captured any scope shots of the device starting up that you could share?

Thanks,

Nick

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