LM2621: Application note for using LM2621 as a SEPIC converter

prachi p

Part Number: LM2621

Hi,

I am using the LM2621 device as a SEPIC converter, where I am generating a 5V voltage output from 4 to 7.5V input supply. I am not able to find any application note for the same.

Is there any document that explains the design calculations and layout for using as a SEPIC converter?

Regards,

Prachi

over 6 years ago

0 Zack Liu over 6 years ago

TI__Mastermind 34201 points

Hi Prachi,

You can refer to these two application notes: www.ti.com/.../snva168e.pdf and http://www.ti.com/lit/an/slyt309/slyt309.pdf
Also, you can use Webench to design your application, which is much easier.

Regards,
Zack

0 prachi p over 6 years ago in reply to Zack Liu

Intellectual 300 points

Hi Zack,

Thanks. Is there some example available for generating 5V from 4 to 7.5V using the LM2621 device as a SEPIC converter?

Also, if I want to use Webench for this design, how do I do that? Is there some design available that I may refer to?

Regards,

Prachi

0 Zack Liu over 6 years ago in reply to prachi p

TI__Mastermind 34201 points

Hi Prachi,

Hope this training video link will help you: https://training.ti.com/webench-power-designer-training-series?keyMatch=webench%20training%20video&tisearch=Search--Everything

Right now there is no example available using LM2621. But i think the Webench can help you.

Regards.

Zack

0 prachi p over 6 years ago in reply to Zack Liu

Intellectual 300 points

Hi Zack,

I have implemented my design in schematics. However, I want to know if it would be possible to have it reviewed, since I haven't designed a SEPIC converter before.

Regards,
Prachi

0 Zack Liu over 6 years ago in reply to prachi p

TI__Mastermind 34201 points

Hi Prachi,

You can upload the schematic.

Regards,
Zack

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LM2621: Application note for using LM2621 as a SEPIC converter