I found there are two MSL value for MP4569GN-Z, MSL 1 and MSL 2a, is there any official doc to clarify this?thx
Thank you for contacting the MPS Forum. This depends on the package of the MP4569 you are planning on using, the MP4569GN is the SOIC8 package. You an see the official MSL data in the reliability report here. This shows MSL 2A for SOIC8.
Field Applications Engineer
Monolithic Power Systems | MPS Now
More information on MSL can be found in the Moisture Sensitivity Technical Note.