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Multiple LTM4670/LTM4658

Thread Summary

The user inquired about connecting multiple LTM4670 or LTM4658 modules in parallel to achieve 60A output current. The engineer confirmed that while it is possible to connect them, stability is not guaranteed for configurations exceeding 40A. For 50A output current with low EMI, the LTM4680 or LTM4700 are recommended alternatives, with the LTM4700 providing two 50A channels. The Silent Switcher topology in μModules ensures good EMI performance, and the LTPowerCAD tool can be used to simulate EMI for the application.
AI Generated Content
Category: Hardware
Product Number: LTM4670, LTM4658

Hi,

May I check if I can connect multiple LTM4670s or LTM4658s in parallel to provide more output current (60A)?

Thank you.

Parents Reply Children
  • Hi Ning,

    LTM4680 is a good alternative if you need 50A output current, or you could use LTM4700 if you need two 50A channels. In general, µModules have good EMI performance due to the Silent Switcher topology used in designing them. You may also use the LTPowerCAD tool to simulate the EMI performance of your application.

    Regards,

    Rufino

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