LM5176: Alternative Part Advise

Also, could you please tell me how's the difference between ours and those in lists? Thanks

Hello Danny,

Thank you for your message. The responsible person is not in the office today but she will answer to your question tomorrow. 

Sorry for the inconvenience, 

Elisabetta

Hi Elisabetta,

Is there anyone else can answer this question as it's an urgent case? Can you help me on this case to find the answer of that? Thanks!

Hi Danny,

As first thing, I would use the BOM&cross reference tool to see TI equivalent parts.

https://bomcross.ti.com/en/

This tool also tells you if the part is a direct replacement or if it has the same functionalities.

I see from the datasheet of the MPQ4470 that this part is a 4.5V-to-36V stepdown converter. Do you need a part with the same specs as the MPQ4470 or do you need something that is fulfilling these specs that you posted: 

(1) Vin: 4.5 - 65V, Aout: 3A, Output: 3.8V/ 1A

(2) Vin: 4.5 - 65V, Aout: 5A, Output: 12V/ 2A

The RT7272B is also a stepdown converter with VIN 4.5V to 36V. Do you need a replacement for this specific part or do you need to fulfill the specs you posted

(1) Vin: 2.7 - 5.5V, Aout: 3A, Output: 3.3V/ 1A

(2) Vin: 4.5 - 65V, Aout: 3A, Output: 3.3V/ 1A

Let me know if I can help you furthermore.

Elisabetta

Hi Elisabetta,

I will need the replacement. P2P would be the best!! THanks

Hi Danny,

The LM5176's max input voltage rating is 60V, so it cannot be used directly to support your 2nd use case (Vin: 4.5 - 65V, Iout: 5A, Output: 12V/ 2A).  

Regarding other applications, you basically need a buck controller or converter, and our group are support boost and buck-boost.  I am forwarding your post to BSR. 

Thank you for reaching out. Note that the part number in the e2e thread title helps to direct your post to the responsible product line. Please be more precise on the title to get faster support. 

Thank you,

Youhao Xi, Applications Engineering