TLV62130 about vref

Tsukui Yusuke

Guru 21930 points

Other Parts Discussed in Thread: TLV62130A, TPS62130A, TPS62130, TPS62080, TLV62130

Hi,

Could you tell me about TLV62130A vref voltage min max?
Customers want to assess the output voltage accuracy.

Best regards,
Yusuke

over 9 years ago

0 Chris Glaser over 9 years ago

TI__Guru**** 150590 points

This is specified 5 lines below that row. The TPS62130A has better accuracy.

0 Tsukui Yusuke over 9 years ago in reply to Chris Glaser

Guru 21930 points

Chris-san,

Thank you for your information.
Let me ask you one more thing.
There is also a device that can measure the feedback voltage.

Could you tell me why the TLV is unable to regulate the Vref?

I can share customer information.
I'm looking forward to hearing from you soon.
tsukui-y@clv.macnica.co.jp

Best regards,
Yusuke

0 Chris Glaser over 9 years ago in reply to Tsukui Yusuke

TI__Guru**** 150590 points

I don't understand your question. Can you rephrase it?

Is it about TLV/TPS62130 or TLV/TPS62080?

0 Tsukui Yusuke over 9 years ago in reply to Chris Glaser

Guru 21930 points

Chris-san,

Thank you for your response.
Sorry for confusion and taking your time.
I want to know TLV62130A Vref.

There may be its provisions(Vref min max) even IC of DCS topology.
For this reason, I got a question from a customer.
Again, Is it difficult to define Vref min max?

Best regards,
Yusuke

0 Chris Glaser over 9 years ago in reply to Tsukui Yusuke

TI__Guru**** 150590 points

This is specified different ways in different data sheets. Ultimately, your customer wants to know the output voltage accuracy. So, this is what we spec in TLV/TPS62130.

On the TLV/TPS62080, we spec the accuracy of the FB pin.

Each of these is basically equivalent as the accuracy of the Vref. But the output voltage or FB pin accuracy also includes other possible sources of inaccuracy, such as the offset voltage (between the Vref input and the FB input) of the error amplifier.

0 Tsukui Yusuke over 9 years ago in reply to Chris Glaser

Guru 21930 points

Chris-san,

Thank you for your kind support.
Let me ask you one more thing.

Could you tell me about Initial output voltage accuracy in Power Save Mode operation?
It is listed in a data sheet of TPS62130.
However, it is not listed in a data sheet of TLV62130.

Best Regards,
Yusuke/Japan Disty

0 Chris Glaser over 9 years ago in reply to Tsukui Yusuke

TI__Guru**** 150590 points

This is not specified for the TLV device. It should be about the same, but use the TPS62130A if you want it specified.

Power management

Power management forum

TLV62130 about vref