TPS54350-EP: Spice Model

Bill Holman

Part Number: TPS54350-EP
Other Parts Discussed in Thread: TPS54350, TPS62933, TINA-TI

Tool/software:

Hello,

Does Texas Instruments have any Spice simulation software I could use for TPS54350-EP? I'm looking to change some components in the feedback loop and would like to see if the power supply will still regulate.

Thank you.

16 days ago

0 Gui He 16 days ago

TI__Mastermind 20866 points

Hi Bill

Sorry we don't have Spice model for TPS54350. What's you application needs? What's the Vin, Vout, Iout needed? We have newer devices like TPS62933, 28V,3A synchronous buck converter.

Thanks and best regards.

0 Bill Holman 15 days ago in reply to Gui He

Prodigy 105 points

Hello Gui,

Will the chip still regulate if we use capacitors rated for 10% variance in the feedback loop? Or should we use 5% or 1% rated capacitors?

0 Bill Holman 15 days ago in reply to Bill Holman

Prodigy 105 points

Can you provide a formula for calculating the gain of the feedback loop? I see on the datasheet we should have a gain of 45, but it doesn't show how to calculate it. Also, says something about being 1/5 of the frequency of the filter inductor and capacitor

0 Bill Holman 15 days ago in reply to Bill Holman

Prodigy 105 points

Can't I use Texas Instrument's Tina Schematic software to model the circuit?

+1 Shipeng Cheng 15 days ago in reply to Bill Holman

TI__Genius 10700 points

Hi Bill,

please see page of TPS54350 TPS54350 data sheet, product information and support | TI.com. There's TINA-TI model and Pspice model on it. Thanks.

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TPS54350-EP: Spice Model