Hi,
May I check if I can connect multiple LTM4670s or LTM4658s in parallel to provide more output current (60A)?
Thank you.
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LTM4670
Recommended for New Designs
The LTM4670 is a quad DC/DC step-down μModule® (micromodule) regulator with 10A per output. Outputs can be paralleled in an array for up to 40A capability...
Datasheet
LTM4670 on Analog.com
LTM4658
Recommended for New Designs
The LTM4658 is a complete 10A step-down switching mode μModule® regulator in tiny 4mm × 4mm × 4.32mm LGA and 4mm × 4mm × 4.62mm BGA packages. Included...
Datasheet
LTM4658 on Analog.com
Hi,
May I check if I can connect multiple LTM4670s or LTM4658s in parallel to provide more output current (60A)?
Thank you.
Hi Ning,
Yes, you can connect multiple LTM4670s or LTM4658 modules in parallel.
You may also use the respective datasheets as reference for the application.
Regards,
Rufino
Hi,
Do you mean that the following connections is possible?
Thank you.

Hi Rufino,
on the website, it indicates the max parallel output current is only 40 A.

Hi Ning,
Connecting five LTM4670 channels in parallel to produce 50A is possible, but the stability of the converter at this configuration is not guaranteed. Could you give more details of your application for this part? It would help us in recommending a more suitable part for your application. Thanks!
Regards,
Rufino
Hi Ning,
Connecting five LTM4670 channels in parallel to produce 50A is possible, but the stability of the converter at this configuration is not guaranteed. Could you give more details of your application for this part? It would help us in recommending a more suitable part for your application. Thanks!
Regards,
Rufino
Hi Rufino,
i'm looking for at least 50A output current with low EMI emission.
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