TPS53659: Power sequence of TPS53659

Jimmy Lai

Expert 6845 points

Part Number: TPS53659

Dear Team,

In our system, power sequence is 12V=Vstb3V3> 5V.

If 12V is fast as 3V3, does it will impact anything?

Many Thanks,

Jimmy

over 3 years ago

0 Nastasha over 3 years ago

TI__Genius 10000 points

JImmy,

I am looping in the apps engineer for further guidance. The most important thing is that the power stages are not enabled before everything is powered (VR_EN is last).

Thanks,

Nastasha

0 Derrick Su over 3 years ago

TI__Intellectual 2845 points

Hi Jimmy,

It won't be a problem. Like Nastasha mentioned, just make sure the enable of controller is the last one.

Power management

Power management forum

TPS53659: Power sequence of TPS53659