TPS62130A: Absolute maximum SW terminal

T Kishi

Part Number: TPS62130A
Other Parts Discussed in Thread: TPS543C20, TPS62135

My Customer has question.

Conditions for use of customers are as follows.
Vin = 12 V
Vout = 3.3 V
When the customer checked the waveform of the SW terminal, the Peak voltage of the SW terminal was about 14.5 V.
This value is include ringing noise, we understand that measurement method and so on will be affected.
However, in the data sheet of TPS62130A, the Absolute maximum SW terminal is described as [Vin + 0.3].
I understand that this value is the DC spec, but is there specification of the Absolute maximum rating of AC spec?

TPS62130A.pdf

Best Regard

T Kishi

over 7 years ago

0 Chris Glaser over 7 years ago

TI__Guru**** 150830 points

Hi Kishi-san,

This is a common question for which there should be numerous E2E entries, such as this one: e2e.ti.com/.../638888

As that thread says, this app note explains how to measure it properly and that this is ok: www.ti.com/.../slva494a.pdf

0 T Kishi over 7 years ago in reply to Chris Glaser

Genius 4425 points

Hi Chris

Thank you for reply.

I also read this thread and Application note, but not mention "AC rating".
Is there no AC rating for the TPS62130A?
For example, such as the maximum rating of SW of TPS543C20.

0 Chris Glaser over 7 years ago in reply to T Kishi

TI__Guru**** 150830 points

There doesn't need to be an AC rating. You don't need to comply with a limit which isn't written. As well, doing a proper layout is more important.

If you require an AC rating, the automotive D/S has one. As well, the newer TPS62135/6 have an AC rating and are smaller, more accurate, higher current, and offer more features.

Power management

Power management forum

TPS62130A: Absolute maximum SW terminal