About single output 20A in LTpowerCAD of LTM4646

Question

Hello 
 I would like to use it with a single output / 20A of LTM4646. I want to design using LTPowerCAD, but I couldn't put the channels together in LTM4646. Since I was able to combine channels with LTM4668A, I think that LTM4646 does not support it. 
 If you have data that supports single output with LTM4646, I would be grateful if you could share it. 
 Best Regards, Knj

ADIApproved · Accepted Answer

This picture you attached is just a guide on how to parallel modules/devices and not outputs. Each LTM4646 has two outputs in one device which can be connected together to make a 2-phase design (see Figure 19 on page 29 of the datasheet). 
 If two LTM4646 are connected in parallel with all outputs tied together, that would be a 4-phase design (see Figure 20 on page 30 of the datasheet).)

ADIApproved · Answer

Hi Knj, 
 I believe LTpowerCAD can support that. Please open LTpowerCAD and search for LTM4646. Enter your specifications and make sure the max paralleled option is set to 2.

ADIApproved · Answer

I think this is because you did not set the max paralleled output to 2. If you look at the two outputs, Vout1 and Vout2, they are tied together. It also says that this design is a 2-phase design with 10A per phase to produce a total output of 20A.

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About single output 20A in LTpowerCAD of LTM4646