LM2676: VFB and power efficiency spec against LM2670

Hung Ching Hsu

Part Number: LM2676
Other Parts Discussed in Thread: LM2670

Hi Team,

My customer is considering LM2670SX-ADJ/NOPB as alternative of LM2676SX-ADJ/NOPB for availability reason.

For ADJ version, in LM2676 datasheet there is VFB spec and power efficiency spec but not mentioned in LM2670 datasheet.

Customer wants to know if LM2670SX-ADJ have the same following spec as LM2676SX-ADJ, could you kindly help confirm?

Thanks.

Regards,
Jo

0 Elena Gao over 3 years ago

hi, Jo,

LM2670SX-ADJ/NOPB could be a alternative part. For the FB voltage both are same, the difference is SYNC function pin and frequency set.

Elena

0 Hung Ching Hsu over 3 years ago in reply to Elena Gao

Hi Elena,

Thank you for confirming, just want to double check, is the MIN and MAX value of VFB also the same between LM2670 and LM2676?

Thanks.

Regards,
Jo

0 Elena Gao over 3 years ago in reply to Hung Ching Hsu

hi, Jo,

LM2676/70 could be the same spec for FB reference. I have also see other design use this 2 as a alternative part, to double confirm it could be use.

Elena

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