TPS62172-Q1 and TPS62560 /about S-parameter data or HSPICE model

Tsukui Yusuke

Guru 21930 points

Other Parts Discussed in Thread: TPS62560, TPS62172-Q1

Hi,

Could you tell me about TPS62172-Q1 and TPS62560 SPICE model?
Customers want to SPICE simulation of these devices.
However,
Customers want to use the HSPICE model or S-parameter data.
Do you have either of data?

[my e-mail address]
tsukui-y@clv.macnica.co.jp

Best Regards,
Yusuke/Japan Disty

over 8 years ago

0 Britt Brooks - Online Design Tools over 8 years ago

TI__Mastermind 41310 points

Yusuke-san,

We do not currently have HSpice or S-parameter models for either device.

I do not know of any value that the S-parameter data or model would provide for these devices.

We typically do not provide HSpice models for our power products. The majority of the HSpice models that exist at TI are for older digital function parts.

0 Tsukui Yusuke over 8 years ago in reply to Britt Brooks - Online Design Tools

Guru 21930 points

Britt-san,

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

The reason why a customer wants a simulation model is phase confirmation.
Customer wants to confirm phase stability.
Can you confirm the attached circuit?
customer circuit.pdf
Could you give me your advice?

[my e-mail address]
tsukui-y@clv.macnica.co.jp

Best Regards,
Yusuke/Japan Disty

0 Britt Brooks - Online Design Tools over 8 years ago in reply to Tsukui Yusuke

TI__Mastermind 41310 points

Yusuke-san,

Based on the datasheet and the app note (SLVA463A), the circuit should be stable for the 4.7uH inductor as long as the output capacitance is below 47uF. See table 1 in the application report for more details:

0 Tsukui Yusuke over 8 years ago in reply to Britt Brooks - Online Design Tools

Guru 21930 points

Britt-san,

Thank you for your support.
I understood it about TPS62172-Q1.
On the other hands,
Can you see the phase of TPS62560?
Could you give me Vout=1.8V,L=4.7uH,Cout=10uF graph?

Best Regards,
Yusuke/Japan Disty

I understood it about B.

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TPS62172-Q1 and TPS62560 /about S-parameter data or HSPICE model