TPS65313-Q1: Stability simulations with transient models

Patryk Jarosz

Part Number: TPS65313-Q1

Is it possible to perform an open-loop stability analysis with transient models provided on TPS65313-Q1 product page? Transient analysis looks fine on PSpice for TI 2020, but I get strange results when AC sweeping an excitation injected into feedback loop (presented below). I am wondering whether is it a problem with the model, or maybe I misunderstood the whole concept.

Regards,

Patryk

over 3 years ago

0 Krishnamurthy Hegde over 3 years ago

TI__Expert 8730 points

Hi,

Open loop stability/AC analysis is not possible with this transient model. We don't have models which supports AC analysis. But for stability, as long as output capacitors and inductors are selected based on datasheet recommendations and feedback is taken close to the local output capacitor, it should be fine.

Regards,

Murthy

0 Patryk Jarosz over 3 years ago in reply to Krishnamurthy Hegde

Prodigy 20 points

Hello,

Ok, thank you for your answer.

Regards,

Patryk

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TPS65313-Q1: Stability simulations with transient models