LM51521-Q1: Could we use that interleaved operation?

Yoshiki Ochi

Part Number: LM51521-Q1
Other Parts Discussed in Thread: LM5152-Q1, , LM5125-Q1, LM5122

Tool/software:

Hi team,

Could we use dual or tripple phase operation by using 2- or 3-pieces of LM51521-Q1? Could you answer the same question for LM5152-Q1 for bypass mode option as well?

Regards,
Ochi

1 month ago

0 Alicia Hao 1 month ago

TI__Intellectual 1380 points

Hi Ochi,

You should be able to use LM5152-Q1 in parallel and it has Bypass mode.

You could also have a look at LM5125-Q1, 2PHASE boost controller. Thank you.

0 Yoshiki Ochi 1 month ago in reply to Alicia Hao

TI__Genius 9635 points

Hi Alicia,

Thank you for response.

Alicia Hao said:
ou should be able to use LM5152-Q1 in parallel and it has Bypass mode.

Could we use this by 180-degree phase shifted? Any syncronizatoin with each phase LM5152-Q1? Could we use tripple use as well?

Regards,
Ochi

0 Alicia Hao 1 month ago in reply to Yoshiki Ochi

TI__Intellectual 1380 points

Hi Ochi,

May I understand what's the application need here? Is it for higher output power? Thank you.

0 Yoshiki Ochi 1 month ago in reply to Alicia Hao

TI__Genius 9635 points

Hi Alicia,

Yes, we consider them for higher output power.

Regards,
Ochi

0 Alicia Hao 1 month ago in reply to Yoshiki Ochi

TI__Intellectual 1380 points

Hi Ochi,

LM5122 recommended instead if multi-phase is needed and LM5125 also recommended for higher Pout with better power density. LM51521 will require external clock for sync and no current sharing available. Thanks.

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LM51521-Q1: Could we use that interleaved operation?