TPS61240-Q1: AC analysis and Stability Simulations

Mithun V J

Part Number: TPS61240-Q1
Other Parts Discussed in Thread: TPS61240

Hi Team,

Could you share an average SPICE model (simulation tool SIMetrix) or a SIMPLIS model for this part to carry out AC analysis.

7 months ago

0 Travis Wang 7 months ago

TI__Expert 4745 points

Hi Mithun,

We do not have such model for TPS61240. If yougive me the BOM and working conditions, I can evaluate it for you.

Best Regards,

Travis

0 Mithun V J 7 months ago in reply to Travis Wang

Prodigy 50 points

Hi Travis, We require loop gain- Gain/phase plots with gain/phase margin measurements. I have attached the circuit image. Working condition is Vin:2.3V - 5.5V and Vo:5V@450mA . I hope this is sufficient. BOM is confidential info, if needed I can share through mail offline.

0 Brigitte 7 months ago in reply to Mithun V J

TI__Guru 60295 points

Hello Mithun, V J,

I am sorry, but the expert of this device is out of the office until end of next week.

If we have a look at the load transients in the datasheet, we can see a phase margin of 60C or more. See this app note for the details on this: Simplifying Stability Checks (Rev. B) (ti.com)

So if you have the ability to do a load transient, you know the phase margin when checking out the transient response on the output voltage.

Best regards,
Brigitte

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TPS61240-Q1: AC analysis and Stability Simulations