AnsweredAssumed Answered

ADP505X buck design tool. (switching frequency)

Question asked by Danielius on Jul 30, 2014
Latest reply on Jul 30, 2014 by LucaV

Hello,

 

I was trying to use ADP505x buckdesign tool I have downloaded.

ADP5050 says that switching frequency could be set to 250 kHz to 1.4 MHz.

 

I  am trying to design a buck converter for 4 output voltages

min input voltage 12V

max input voltage 12V

 

1.0V 6A (1 and 2 channel paralleled)

1.8V 1A

1.2V 1A

 

Under advanced settings ADP505x buckdesign tool limits frequency to 450kHz

Why is that?

 

If I change input voltage, it changes switching frequency a bit.

 

Is it possible at all to achieve 1MHz switching frequency?

 

Thanks,

 

Regards,

Danielius

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