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WEBENCH® Tools/LM26420-Q1: WEBENCH

Genius 4700 points
Part Number: LM26420-Q1

Tool/software: WEBENCH® Design Tools

We would like to use WEBENCH using with LM26420X-Q1 at following 4 cases.

But WEBENCH doesn't work in these conditions.

 

CaseA

3.3V->1.8V(to 0.25A)

           1.5V(to 1.4A)

 

CaseB

3.3V->1.8V(to 0.53A)

          1.5V(to 1.4A)

CaseC

3.3V->1.5V(to 1.4A)

      1.2V(to 0.01A)

 

CaseD

5V->1.5V(to 1.4A)

    3.3V(to 0.14A)

 

 

We would like to get efficiency information and space information at these conditions.

Please help us