Teardown: MSI 400W Gaming Laptop Adapter — NXP TEA2016AAT Combo Controller with PFC + LLC + Synchronous Rectification
2026-09-17 · Compiled by Best IT Parts from public industry reporting
Chongdiantou's video teardown of the MSI 400W gaming-laptop adapter confirms a PFC + LLC + synchronous-rectification topology built on a current-generation notebook-adapter power train. Primary side: an NXP TEA2016AAT combo controller covering both PFC and LLC in a single IC, driving two Infineon PFC MOSFETs plus two Infineon primary-side LLC switches. Secondary side: an MK1620 synchronous-rectifier controller paired with four SiliMicro SR MOSFETs to complete the low-voltage/high-current output rectification stage. For adapter makers and component buyers this is a compact benchmark for the 300-400W notebook adapter class — the same NXP combo-controller architecture now displacing discrete PFC + LLC controller pairs in high-power designs, with the BOM weighted toward Infineon switching silicon and domestic SR parts.
Need this part in volume?
Best IT Parts supplies wholesale laptop power adapters, server power supplies and replacement parts, with OEM/ODM and private-label options.
Technical details are reproduced as reported. Verify specifications against the original source before design or procurement decisions.