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LMR66430: Customize LMR66430MC5RXBRQ1

toyoda daisuke
Prodigy 20 points
Part Number: LMR66430

Tool/software:

Hello TI engineers
I have a question about LMR66430MC5RXBRQ1.

I am using WEBENCH POWER DESIGNER to use this IC with external synchronization.
I have entered the input and output conditions and pressed the “VIEW DESIGN LMR66430MC5RXBRQ1” button.
When I press the “VIEW DESIGN LMR66430MC5RXBRQ1” button, I get a schematic, but the frequency is set to 2.2MHz.

I want to use an external sync clock at 450 kHz and I want to simulate at 450 kHz.
Is there a way to do this?

  • +1
    TI__Guru 73015 points

    Hello

    Let me find the Application engineer for this product and we will get back to you as soon as possible.

    Thanks

  • 0 in reply to Frank De Stasi
    TI__Mastermind 24115 points

    Hi, 

    That design is not supported with the LMR66430MC5RXBRQ1 model at this time, but adjustable switching frequency is available with the LMR66430R5RXBR model. These two models should perform similarly. The only difference is that the LMR66430R5RXBR will have PFM mode giving better light load efficiency. You can change your switching frequency when opening a design using the tab to the left. For your convenience I have also started a design for you: webench.ti.com/.../SDP.cgi

    Thank you,

    Joshua Austria