LM27313-Q1: LM27313 Webench and TINA results shows the different results

Murugesan A

Part Number: LM27313-Q1

Hi Team,

The LM27313XQMF is used to regulate 12V from Vin range from 5.6 to 6V.

TINA simulation shows dip in the output voltages regulation whereas in Webench there is no such Voltage dip for the load of 250mA.

Here are the circuit and simulation results are attached, Please let me know why this not stable and why the results are shows different in both.

0 Lei Zhong over 2 years ago

Hi Murugesan,

What's the Rload in your TINA simulation? Is it 24Ω?

Regards

Lei

0 Murugesan A over 2 years ago in reply to Lei Zhong

Hi,

Thanks for the quick reply,

Actual Load is 48Ω(250mA).

We have checked with various load the output remains same.

Thanks and Regards

Murugesan A

0 Lei Zhong over 2 years ago in reply to Murugesan A

Hi Murugesan,

I think it should be a issue related with the setup in TINA. Could you attached the TI simulation file?

Regards

Lei

0 Murugesan A over 2 years ago in reply to Lei Zhong

P12V_Boost.zip Attached the files

0 Lei Zhong over 2 years ago in reply to Murugesan A

Hi Murugesan,

The problem is that the capacitors used in the simulation file can't be recognized by TINA although no error information.

I tried to use general capacitors from TINA and the Vout is normal, no dips. You may have a try at your side.

Regards

Lei

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