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LTM8055 Parallel Operation

Category: Hardware
Product Number: LTM8055, LTC6909

I am trying to make a circuit configuration using LTM8055.
I would like to configure as many LTM8055s as possible in parallel.
Question 1. Can you tell me how many LTM8055 can be configured in parallel?

I need to configure input 28V, output 28V 35A.
Previously I configured the LTC6902 with 4 LTM8055s in parallel.
If you use LTC6909 (8phase), you can configure up to 8 LTM8055.
Question 2. Can you tell me if it is possible to parallelize up to 8 LTM8055s using the LTC6909?

질문 2. LTC6909를 사용하여 최대 8개의 LTM8055를 병렬화할 수 있는지 알려주실 수 있습니까?


Question 1. Can you tell me how many LTM8055 can be configured in parallel? Question 2. Can you tell me if it is possible to parallelize up to 8 LTM8055s using the LTC6909?
[edited by: Frankie.Jeon at 8:38 AM (GMT -4) on 31 Oct 2022]
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  • FormerMember
    0 FormerMember
Question 1. Can you tell me how many LTM8055 can be configured in parallel?

The datasheet only provides up to two LTM8055 configured in parallel. It is on page 20 LTM8055 (Rev 0) (analog.com).

Question 2. Can you tell me if it is possible to parallelize up to 8 LTM8055s using the LTC6909?

It should be possbile as there is a clock/sync pin for LTM8055. I have seen the LTC6909 and it should be straightforward. 

Refer to page 17 of the datasheet LTC6909 - 1 to 8 Output, Multiphase Silicon Oscillator with Spread Spectrum Modulation (analog.com) for the example.

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  • FormerMember
    0 FormerMember
Question 1. Can you tell me how many LTM8055 can be configured in parallel?

The datasheet only provides up to two LTM8055 configured in parallel. It is on page 20 LTM8055 (Rev 0) (analog.com).

Question 2. Can you tell me if it is possible to parallelize up to 8 LTM8055s using the LTC6909?

It should be possbile as there is a clock/sync pin for LTM8055. I have seen the LTC6909 and it should be straightforward. 

Refer to page 17 of the datasheet LTC6909 - 1 to 8 Output, Multiphase Silicon Oscillator with Spread Spectrum Modulation (analog.com) for the example.

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