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LM2577: LM 2577S-ADJ NOPB / LM 2577SX-ADJ NOPB

Part Number: LM2577

Hi everyone,

Good day!

I have received a equipment power supply board with UC2577TDKTTT-ADJ. Since it is obsoleted part, I found the alternate parts as "LM 2577SX-ADJ NOPB & LM 2577S-ADJ NOPB.

While refer the specs of both parts, it seems both are same. In the ordering page I found the LM2577S-ADJ NOPB is packaging qty is 45 and LM2577SX-ADJ NOPB package qty is 500.

Is this is the only difference or any other tech specs difference are there ?

Please let us know.


Thank you in advance.
Regards,

Ramesh D