TPS7A19: Output regulation

Brian Wang0928

Part Number: TPS7A19

Tool/software:

In the d/s, it says that output voltage regulation is +/-2% over temp. Is it including line regulation and load regulation? Thanks!

regards

Brian

11 months ago

0 Nick Butts 11 months ago

TI__Guru 50025 points

Hi Brian,

The EC spec specifies that the spec is over line and load regulation:

Regards,

Nick

0 Brian Wang0928 11 months ago in reply to Nick Butts

TI__Genius 14000 points

One more question.

The Vout regulated output range +/-2%. Is the deviation of feedback deviation +/-2% already taken into account in the VOUT regulated range?

0 Nick Butts 11 months ago in reply to Brian Wang0928

TI__Guru 50025 points

Hi Brian,

The feedback divider resistance tolerance is not included in the spec, so the ±2% spec for VOUT is the same as the same as the spec for VFB.

Regards,

Nick

0 Brian Wang0928 11 months ago in reply to Nick Butts

TI__Genius 14000 points

Thanks Nick. Two more questions here.

1. You mean that the +/-2% variation for VOUT that is only including VFB variation, right?

2. In the E/C table, the VOUT variation is not considering the external Feedback resistors of R1/R2. If customer would like to get more precise calculation at worse condition, the R1/R2 variation needs to be taken into account?

Regards

Brian

0 Nick Butts 11 months ago in reply to Brian Wang0928

TI__Guru 50025 points

Hi Brian,

Yes that's correct. The feedback resistor tolerance needs to be considered as well, and the 2% spec does not include it.

Regards,

Nick

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TPS7A19: Output regulation