TPS65094: Device usage in conjunction with an ATX power supply

Fabio Bucci

Part Number: TPS65094

All,

do you have any collateral on the following use case?

- TPS65094x usage in conjunction with an ATX power supply (the board is going to be powered up by using an ATX power supply)

Please let me know

Thanks

over 8 years ago

0 Kevin LaRosa over 8 years ago

TI__Genius 17380 points

Hi Fabio,

For ATX power supplies, I believe the most common thing is to use a small boost from the 5V supply to supply PMIC VSYS pin to avoid UVLO when 12V supply is off. I will help provide more details tomorrow (we are out of office today for 4th of July).

0 Fabio Bucci over 8 years ago in reply to Kevin LaRosa

TI__Intellectual 2635 points

Hi Kevin,

I expected that - please let me know when you're back tomorrow. If we could provide some app note or collaterals describing the specific use case that would be appreciated.

Thanks

0 Kevin LaRosa over 8 years ago in reply to Fabio Bucci

TI__Genius 17380 points

Hi Fabio,

I've summarized the information I have into an FAQ note located here: e2e.ti.com/.../3554.use-of-atx-power-supply

Let me know if you have any questions.

Power management

Power management forum

TPS65094: Device usage in conjunction with an ATX power supply