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Calculating Vout Max

Kevin Seaton
Prodigy 140 points

How does Power Designer calculate Vout Max when I check the "Vout Max" checkbox in the box titled "Design --> Device Synchronization" (Design Tab)?  Is there a simple formula that you can send that would help me understand this better? 

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    TI__Genius 13700 points

    The Vout_Max configuration parameter is set 18% above the Nominal Output Voltage setting on the Design page of the GUI for output voltages of 1.356V and above (1.356V *1.18 = 1.6V).  The value of Vout_Max will be set to 1.6V for all values of Nominal Output Voltage below 1.356V.

    This is just a starting point value to get the rail functioning, if the Vout_Max setting is set below Vout then the rail will fail to start or will be limited to the Vout_Max value.  Typically the user's load will have its own unique requirements for a maximum voltage limit.

    The Vout_Max setting can be edited directly, in which case a pop-up will appear to indicate that you are altering the value chosen by the design tool and the sychronization box will be unchecked on the Design page.