Teardown of Xiaomi 120W USB-C GaN Charger

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Introduction
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Recently, Xiaomi updated their 120W GaN fast charger from USB-A to USB-C.
It only takes about 15 mins to fully charge some Xiaomi smartphones, such as the Redmi Note 11 pro+.
Today, ChargerLAB will teardown this 120W GaN fast charger.

Bill of materials (BOM)
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PFC Controller: Silergy SY5072B
GaN IC: Navitas NV6134
Electrolytic Capacitors: SAMXON
Power Supply Capacitor: CapXon
Master Control Chip: ON Semiconductor NCP1342
Synchronous Rectifier Controller: MPS MP6908A
Synchronous Rectifier: Vanguard VSP003N10H
Solid Capacitor: BERYL
Optocouplers: EVERLIGHT
Protocol Chip: Injoinic IP2729
Output VBUS MOSFET: Vanguard VS3698AE

Chapter
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0:00 Intro
0:12 Unboxing
1:12 Testing
1:47 Teardown - Start
3:41 Teardown - Analysis
7:52 Summary

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