LNK3206P Buck Converter

Hallo,

 I have  designed  Buck converter  with Vin=(85-265)VAC, to get  Vout=12VDC, Iout=360mA(CCM) using  LNK3206P.

Kindly  support us to know :

1- Are the selected components suitable for the design?

2-  Is this power supply  have  the ability to provide 360mA  without any  issues??

3-  3- Will the output voltage be stable at 360 mA??

The attached fille is circuit design and bill of materials.

Waiting  your reply .

Waiting your reply

Hi,

Thanks for posting in the forum. The inductance might be too small to deliver the required power. Please select LNK3207 instead, or increase inductance at least 1200uH.

You may use this design as reference for your design and layout: RDR-912 - 6.6 W Non-Isolated Buck Converter for Small Appliances Using LinkSwitch-TN2 | Power Integrations

Regards, Gavin

 HI Gavin,

Very thanks  for your reply,

I will increase the inductance to be 1200uH, but I need to confirm  below point:

Will this power supply have the ability to supply 360mA, 12V DC, at Vin = 265VAC without any problems (Heating,  Unstability  in output voltage)??

Waiting your reply.

Wating your reply

Hi,

It should work well as long as you follow the guidelines set in this design guide: AN-70 - LinkSwitch-TN2 Design Guide | Power Integrations

Please ensure there is enough copper area for thermal management. 

-Gavin

 HI Gavin,

Very thanks  For your Support.