Hi,
I am trying to simulate a buck converter for 48V input to 3.3V 10A output using LM5146 using P-spice for TI, unfortunately not getting the desired output during simulation. Component values are calculated by TI's power calculator excel sheet. attaching simulation files Thanks in advance

 

Hi,
I am trying to simulate a buck converter for 48V input to 3.3V 10A output using LM5146 using P-spice for TI, unfortunately not getting the desired output during simulation. Component values are calculated by TI's power calculator excel sheet. attaching simulation files Thanks in advance

Sync you are not using external clock, SYNCIN should be grounded, SYNOUT disconnected.
What are you specifications? Freq? etc.?

There is no pspice schematic in your posted files so could not open.

 

Hi,
I am trying to simulate a buck converter for 48V input to 3.3V 10A output using LM5146 using P-spice for TI, unfortunately not getting the desired output during simulation. Component values are calculated by TI's power calculator excel sheet. attaching simulation files Thanks in advance

Is P-spice for TI the same thing as TINA?

 

Is P-spice for TI the same thing as TINA?

No...But tina is pspice compatible.

 

No...But tina is pspice compatible.

Interesting! I didn't realize there were multiple alternatives from TI.

 

Sync you are not using external clock, SYNCIN should be grounded, SYNOUT disconnected.
What are you specifications? Freq? etc.?

There is no pspice schematic in your posted files so could not open.

Frequency is 300kHz. I am again attaching the file. should be connected to VCC as per datasheet. I am sending the archive project file and this should work

 

Frequency is 300kHz. I am again attaching the file. should be connected to VCC as per datasheet. I am sending the archive project file and this should work

Change both mosfets to real models instead of generic models.
Use:
CSD18514Q5A
This mosfet is located in the TI category section.

 

Change both mosfets to real models instead of generic models.
Use:
CSD18514Q5A
This mosfet is located in the TI category section.

View attachment 277661

View attachment 277660

Thank you so much