LM5148: can 4*LM5148 be used to implement with single output?

Ken Zhang

Part Number: LM5148
Other Parts Discussed in Thread: LM5143,

Tool/software:

Hi, team

a my account wants to know whether 4 pcs of LM5148 are used to implement with single output. LM5143 can't be used because the LM5143 can't enter ultra low power mode in multi-phase single output topology.

Vin:60V;

Vout:13.5v

Iout: 100A

over 1 year ago

0 David Baba over 1 year ago

TI__Mastermind 40040 points

Hello Ken,

Suggest using the LM5143, has an absolute max input voltage of 70V. This is a dual phase controller, can stack two of them for 4 phases. Hope this helps.

David.

0 Ken Zhang over 1 year ago in reply to David Baba

TI__Expert 3595 points

David

LM5143 has high standby power consumption when LM5143 is used for multiphase single output application. this can't be accepted by customer as battery is as power supply.

0 David Baba over 1 year ago in reply to Ken Zhang

TI__Mastermind 40040 points

Hello Ken,

unfortunately, as per the datasheet, additional phases cannot be added.

David.

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LM5148: can 4*LM5148 be used to implement with single output?