L6983N50QTR adjusting inductor and output caps

[NNara.1]

Hi,

Ive been trying to use eDesignSuite to verify my design with L6983N50QTR. Please find my schematic attached. My specs are:

IC

L6983N50QTR

Topology

buck

Input

7 - 33 V

Output 1

5 V (2 % ripple) - 1.9 A max

When I put the values that I am trying to use, I get the warning that the IL ripple is 30.27%, and bandwidth is 18.29kHz. In my schematic I adjusted the inductor to 10uH and added more output capacitors but how do I do it on eDesignSuite? I tried to change inductor value but it doesnt work. Could you please check this circuit and let me know if this is ok? Thanks

[Patrizia BELLITTO]

Hello,

we have just updated L6983 design with more relaxing constraints, so maybe now we will be available to change inductor value to fit with your application.

You can already replace the output capacitor choosing from the list one with similar electrical parameters.

Best regards,

Patrizia

[NNara.1]

Hi Patrizia

Unfortunately I am unable to update the inductor of the L6983 eDesignSuite project. When I try to change inductor value it stays at 7.63uH and does not give me any alternate inductors

Thanks

Navin

[Patrizia BELLITTO]

sorry, can you try again? Clicking on the disclaimer, you should find

eDesignSuite DC/DC Engine - 1.8.0