TPS562202: PSpice simulation

Ernest Yong

Part Number: TPS562202

Pspice Simulation

Hello Sir,

I've been trying to use the "TPS562202 Buck Converter" to achieve a voltage output of 5V@0.5A from a Voltage input range of 10V to 17V. As shown in the image above, I had tried to do a PSpice simulation according to the configuration given on Webench. However, I am not able to achieve an output voltage of 5V (What I obtained was 14.28nV). Please kindly advice.

Thank you for your time!

over 2 years ago

0 Edwin Zang over 2 years ago

TI__Expert 6425 points

Hi Yong,

I will double check Pspice model. you can use Webench model to run.

BRs,

Edwin.

0 Ernest Yong over 2 years ago in reply to Edwin Zang

TI__Expert 3775 points

Hi Edwin,

Thank you for your time. Please kindly let me know me if there is any issue with this model.

Best Regards,

Ernest Yong

0 Edwin Zang over 2 years ago in reply to Ernest Yong

TI__Expert 6425 points

Hi Yong,

no problem, I'm running it. i will give you feedback tomorrow.

Edwin,

BRs.

0 Edwin Zang over 2 years ago in reply to Ernest Yong

TI__Expert 6425 points

Hi Yong,

I checked the Pspice model. it can run. could you check the waveform?

BRs,

Edwin.

0 Ernest Yong over 2 years ago in reply to Edwin Zang

TI__Expert 3775 points

Hi Edwin, thank you for your reply.

I manage to get the same simulation waveform as you when I try to achieve 1.05V output. However when I changed the component values to achieve a 5V output, there seem to be an error.

Regards,

Ernest

+1 Edwin Zang over 2 years ago in reply to Ernest Yong

TI__Expert 6425 points

Hi Yong,

please change the value in "start up" function page.

BRs,

Edwin.

0 Ernest Yong over 2 years ago in reply to Edwin Zang

TI__Expert 3775 points

Hi Edwin,

Sorry to trouble you again. I thought I already solved the problem however as I went deeper I still can't seem to fix my issue. My attached Images are the screenshot I had for my waveforms and also my circuit configuration. I still can't seem to achieve an output voltage of 5V after changing the values of the components.

Once again, thank you for your help.

Regards,

Ernest