Teardown of Apple 40W Dynamic Power Adapter with 60W Max (Video)

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Introduction
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On September 10th, Apple held its 2025 Fall Event, unveiling the iPhone 17 lineup alongside a brand-new product category—iPhone Air. Among the announcements, one product that stood out was Apple’s new 40W Dynamic Power Adapter, which gained attention for its compact design and ability to dynamically deliver up to 60W of total output power.

The charger is now available on Apple’s official website, priced at $39 USD. According to Apple, when used with an iPhone 17 series device, the adapter can charge the phone to 50% in approximately 20 minutes—offering significantly faster charging performance compared to the previous generation. Despite the substantial power upgrade, the adapter maintains a highly compact form factor—roughly the same size as Apple’s standard 20W charger. It also features foldable prongs for improved portability and travel convenience. In the following teardown, we take a closer look at the internal design and power distribution architecture of Apple’s latest fast charger.

Bill of materials (BOM)
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Model: A3365
Bridge rectifier: DIODES RTT10KL
Synchronous rectifier: RECTRON RM85N100DF
Protocol chip: Infineon CYPDC1185B2-32E
Operational amplifier: TI TLV9001
VBUS MOSFET: RECTRON RM80N30DN