1. I read the data sheet, but I didn't understand LM3658SD/NOPB, LM3658SD-A/NOPB, LM3658SD-B/NOPB. Can you briefly describe the difference and how to apply it?
2. I designed the LM3658SD/NOPB, but the delivery time is longer. I can use LM3658SD-A/NOPB directly. Can I replace it with pin to pin?