TPS7A8300: Layout rules of Pin2 SNS

user6342548

Part Number: TPS7A8300

Hi Sir，

Pls confirm layout rules of Pin2 SNS, such as the width of routing. If there is a 0R resistor bewteen SNS and Output, should we place the 0R to Sink side or Source side?

over 2 years ago

0 Nick Butts over 2 years ago

TI__Mastermind 47095 points

Hello,

The routing can be minimum size because it is not a current-carrying trace.

I don't understand your question about the 0R. What do you mean by sink side or source side? Are you saying at the "top" of the load, i.e. where VOUT is regulated, or the "bottom" of the load, where the load current flows out of the load?

Thanks,

Nick

+1 user6342548 over 2 years ago in reply to Nick Butts

Prodigy 160 points

Hi sir，

Sink side ，is the load side, where the load courrent flows to the load. The Remote sense.

Source side, where Vout decouple Cap side. The Near end sense.

0 Nick Butts over 2 years ago in reply to user6342548

TI__Mastermind 47095 points

Hello,

The SNS trace should connect to where the load is at. The output capacitor should still be close to the LDO, and the SNS pin should be connected to where the load is delivered.

Regards,

Nick

Power management

Power management forum

TPS7A8300: Layout rules of Pin2 SNS