Following the 40W Dynamic Power Adapter, Apple has further introduced the PD3.2 AVS protocol to its high-power fast charging product line, launching a brand-new 70W USB-C Gallium Nitride (GaN) fast charger.
Compared to the previous generation 70W charger, the new model upgrades the prongs and interface design with new national standard insulated prongs. It also completely replaces the long-standing AC power interface 1 with AC power interface 2, supporting use with the new version of the power adapter extension cable and global travel converter kit.
Secondly, regarding fast charging protocols, while maintaining the total output power at 70W, the new model introduces the PD3.2 SPR AVS protocol, adding two AVS dynamic voltage adjustment tiers: 9.0-15.0V @ 3.0A and 15.0-20.0V @ 3.4A, addressing the lack of AVS protocol support in the old 70W model.
Testing by the Chongdiantou evaluation lab confirmed that it can successfully trigger full-blooded AVS fast charging above 50W for the iPhone 18 Pro series, charging an iPhone 18 Pro Max to 50% battery level in just 15 minutes.
Product Appearance
The packaging box continues Apple's classic minimalist white square box design style. The front top left corner features the Apple logo and the "70W Power Adapter" product name, while the center area displays a rendering of the charger body.
The top of the back of the packaging box features Apple's classic tear-off seal strip. The top right corner highlights a diagram of the AC power interface 2, indicating that the product uses the new generation AC power interface.
Opening the package reveals the Apple new 70W power adapter body, instruction manual, and safety information booklet. The input extension cable and fast charging cable must be purchased separately by users.
The Apple new 70W charger maintains the family's iconic "tofu block" shape. The entire body uses a white high-gloss flame-retardant PC shell with rounded corners. The centers of both the front and back feature the classic embossed Apple logo, offering high recognizability.
The overall appearance of the charger is consistent with Apple's historical MacBook power adapters. One end features foldable national standard prongs, while the other end is equipped with a single USB-C output port, preventing scratches on items in the bag when stored.
The output side of the body features a single USB-C port positioned centrally towards the top, using a white core.
The AC input side features foldable new national standard prongs. When retracted, the tips of the prongs protrude slightly from the body frame, facilitating easy one-handed extraction for daily use.
The bottom of the body features laser-engraved product parameter specifications.
Close-up of the charger specification parameters:
Model: A3543
Input:100-240V~ 1.8A 50-60Hz
Output (USB PD): 5.0V 3.0A or (AVS) 9.0-15.0V 3.0A or (AVS) 15.0-20.0V 3.4A or 20.6V 3.4A
Manufacturer: Salcomp Technology (Shenzhen) Co., Ltd.
The charger has passed 3C, KC, BSMI, SAFETY MARK, PSE, ISC certifications, as well as Level VI energy efficiency certification.
The prong module retains Apple's consistent detachable replacement design. After removing the prong module, the body can be paired with the AC power interface 2 power adapter extension cable or global travel converter kit sold on Apple's official website, adapting to scenarios requiring distant power access or international travel.
After removing the prong module, the recessed area features a light gray casing contrast color design. Above it is a circular metal T-shaped fixing seat, which also serves as grounding when connecting a three-prong AC power extension cable.
The interior of the AC power interface 2 female socket features a racetrack-shaped groove structure, containing two nickel-plated round-head AC input pins. The serial number F16HXA006220001G3Q is printed above the groove.
Close-up of the independent detachable prong module. The new prongs feature added white insulation coating, complying with new national standard regulations.
The inner side of the prong module features U-shaped guide slots.
The prong module model is A3612, rated for 250V~ 2.5A, manufactured by Jabil.
Comparison between the prongs of the old and new Apple 70W chargers is shown below.
Comparison between the AC power interface female sockets of the old and new generations of 70W chargers is shown below.
Comparison between the detachable prong modules of the old and new generations is shown below.
Product Dimensions and Weight
Measured with calipers, the length of the charger body is 64.98mm.
Measured width of the charger body is 64.91mm.
Measured thickness of the charger body is 28.49mm.
Measured weight of the charger is approximately 163.4g.
The intuitive size comparison of the charger held in hand is shown below.
Product Fast Charging Test
Using the ChargerLAB POWER-Z KM003C to test the USB-C port fast charging protocol, the screen displays support for PD3.2/AVS and DCP charging protocols.
Regarding PDO message details, tests show the USB-C port offers four fixed voltage tiers: 5.00V 3.00A, 9.00V 3.00A, 15.00V 3.00A, and 20.00V 3.40A, along with one SPR AVS adjustable voltage tier of 9-20V 3.00A/3.40A.
Reading the charger's underlying information with the POWER-Z KM003C shows the name as "70W USB-C Power Adapter", serial number F16HXA006WL0001G3Q, device ID 0x7026, VID 0x05AC, firmware version 01010013, and hardware version 1.0.
Charging an iPhone 18 Pro Max with the Apple new 70W charger successfully triggered the PD3.2 AVS fast charging18V tier. The current input voltage was 17.58V, current 2.96A, with a charging power reaching 52.06W.
Charging an iPhone 17 Pro Max triggered the 15V PD fast charging tier. Input voltage was 14.82V, current 2.62A, with charging power reaching 38.84W.
Charging a 16-inch MacBook Pro triggered the 20V high-voltage PD tier. Input voltage was 20.14V, current 3.36A, with charging power reaching 67.74W.
In the macOS System Information - Power - AC Charger Info interface, the information matches that read by the POWER-Z KM003C.
Having reviewed the product's appearance, interface comparison, and AVS fast charging tests, we now proceed to the teardown section.
Product PCBA Overview Analysis
Cutting open the charger housing along the seams reveals the internal structure. The inner side of the right housing is covered with a whole piece of custom black silicone pad, designed with cutouts based on the internal contours, serving multiple roles including buffering, vibration damping, insulation isolation, and auxiliary heat conduction.
Removing the black molded silicone pad from the right housing reveals that the inner wall of the white PC outer shell is also largely covered with black graphite thermal conductive stickers.
Extracting the PCBA module from the housing shows that the inner wall of the other side of the housing is similarly covered with large-area black graphite thermal conductive stickers. Meanwhile, the back of the PCBA module is tightly covered with a layer of custom black silicone pad.
The AC input female socket of the PCBA module is connected to the main board via wires. Custom black plastic brackets are used to fix components between the capacitors, planar transformer, and input EMI devices on the front of the main board.
The back of the PCBA module is completely covered by the black silicone pad.
Measured length of the PCBA module is approximately 58.93mm.
Measured width of the PCBA module is approximately 58.09mm.
Measured thickness of the PCBA module is approximately 23.03mm.
Removing the black silicone pad from the back of the PCBA module.
Overview of the front of the PCBA module. Internal components are neatly arranged, featuring six high-voltage filter electrolytic capacitors, a planar transformer, and input EMI circuits.
A safety isolation gap exists between the primary and secondary sides of the PCBA module. The primary side area contains one Navitas GaN power chip, and two high-voltage MOSFETs from Alpha & Omega Semiconductor (AOS) and STMicroelectronics. The secondary side features synchronous rectification MOSFETs, an Infineon USB PD3.2 protocol chip, and output VBUS switch transistors. The overall wiring is neat, and solder joints are plump.
Side view of the PCBA module.
Output end side view of the PCBA module.
Input end side view of the PCBA module.
USB-C output side view of the PCBA module.
After desoldering all through-hole components from the front of the PCBA module, it is visible that the central area of the PCB front still houses Apple-customized primary control chips, SMD current transformers, feedback optocouplers, and secondary synchronous rectification controllers.
Through overall observation of the PCBA module, it is evident that the Apple new 70W GaN fast charger adopts a flyback switching power supply architecture. The primary side uses an Apple-customized controller paired with a Navitas GaN power chip. The secondary side employs synchronous rectification, controlled by an Infineon protocol chip to achieve PD3.2 and SPR AVS output.
We will now analyze the information of each component starting from the input end.
Product Primary Side Circuit Analysis
Close-up of the input delay fuse, insulated with a heat shrink tube.
The safety X2 capacitor is from TDK, used to filter differential mode electromagnetic interference from the grid input.
Both stages of common-mode inductors are integrated and fixed on a custom black plastic insulating skeleton. The first stage common-mode inductor is wound with flat copper strips, with tight and neat winding.
The second stage common-mode inductor is embedded in the groove on the other side of the plastic skeleton, using a parallel winding design of copper wire and enamel wire.
The bridge rectifier has a metal heat sink attached to its exterior.
Close-up of the removed bridge rectifier front, with no silkscreen markings on the surface.
Close-up of one differential mode drum core inductor, insulated with a heat shrink tube.
Five high-voltage filter electrolytic capacitors are wrapped externally in fully black heat shrink tubing.
Peeling back the heat shrink tube on the rightmost capacitor reveals that the high-voltage filter capacitor is from CapXon, with a single unit specification of 400V 22μF.
There is another CapXon high-voltage filter capacitor of the same specification, indicating that the primary side uses six high-voltage filter capacitors of the same specification.
The filter electrolytic capacitor powering the primary control chip also has a layer of black heat shrink tubing on its exterior.
Removing the outer black heat shrink tube reveals that this capacitor is from Lelon.
Close-up of the primary control chip soldered to the front of the PCB. This is an Apple deeply customized switching power supply controller, with the silkscreen APSLCA01, widely used in many of Apple's GaN fast charging products.
The built-in primary switch transistor comes from Navitas Semiconductor, model NV6017C, using PQFN 5*6 packaging, with a conduction resistance of 120mΩ. The chip integrates GaN power devices and driver circuits, resulting in fewer peripheral components.
One high-voltage MOSFET is from STMicroelectronics, silkscreen 65PF6, using PowerFLAT 5*6 packaging.
The other high-voltage MOSFET is from Alpha & Omega Semiconductor (AOS), actual model AONS660A70F. It is an NMOS with a withstand voltage up to 800V, conduction resistance of 550mΩ, using DFN5*6F packaging.
Datasheet information for the AOS AONS660A70F is shown below.
Close-up of the removed planar transformer module.
Close-up of one black safety Y capacitor, part number B221K.
Close-up of another black safety Y capacitor, part number B681K.
Close-up of one Everlight EL1014 optocoupler.
Close-up of one SMD current transformer.
Synchronous Rectification Circuit Analysis
The secondary synchronous rectification controller has silkscreen D9 6ZZ, using SOT23-6 packaging.
The synchronous rectification transistor soldered to the secondary side on the back of the PCB is from RECTRON, model RM85N100DF. It is an NMOS with a withstand voltage of 100V and low conduction resistance of only 4.6mΩ, using DFN5*6 packaging.
Fast Charging Output Circuit Analysis
The built-in fast charging protocol chip is from Infineon, model CYPDC1185B2-32E, belonging to the Infineon EZ-PD CCG3PA series controller. It features a built-in 32-bit Arm Cortex-M0 processor and uses 32-pin QFN packaging.
The output VBUS switch transistor is from Alpha & Omega Semiconductor (AOS), model AON7428. It is an NMOS with a withstand voltage of 30V and conduction resistance as low as 2.3mΩ, using DFN3.3*3.3 packaging.
Datasheet information for the AOS AON7428 is shown below.
The first output filter solid-state capacitor is from Nichicon, specification 25V 270μF.
The second output filter solid-state capacitor is also from Nichicon, specification also 25V 270μF.
The third output filter solid-state capacitor is from CapXon, specification 25V 270μF.
Close-up of the USB-C female socket small board at the output end. The small board is vertically soldered to the PCBA via double-row high-density metal pin headers through holes at the bottom.
All disassembly completed. Here is a group photo of all components.
Chongdiantou Summary
Finally, here is the product's bill of materials for your reference.
The Apple new 70W USB-C GaN power adapter maintains the family's iconic "tofu block" shape in appearance and introduces the PD3.2 SPR AVS fast charging protocol. Tests show charging power for a MacBook Pro 16 can reach over 67W, and maximum charging power for an iPhone 18 Pro Max can reach over 52W, addressing the shortcoming of the old 70W charger not supporting the AVS protocol.
Through teardown analysis, Chongdiantou learned that the Apple new 70W GaN charger is manufactured by Salcomp, continuing Apple's original strict design standards for power supplies internally.
Regarding circuit architecture, the primary side uses the Apple-customized control chip APSLCA01. The primary switch transistor selects the Navitas NV6017C GaN power chip, paired with two high-voltage MOSFETs: STMicroelectronics 65PF6N2 and AOS AONS660A70F. The secondary side uses a synchronous rectification controller with silkscreen D9 6ZZ paired with the RECTRON RM85N100DF synchronous rectification transistor.
The output end selects the Infineon CYPDC1185B2-32E fast charging protocol chip paired with the AOS AON7428 VBUS switch transistor, achieving a maximum output of 70W.
In terms of capacitor selection, the primary side uses six CapXon 400V 22μF electrolytic capacitors and a Lelon power supply capacitor. The secondary side uses two Nichicon and one CapXon solid-state capacitors (three in total) for output filtering.
Additionally, the product internally uses custom plastic skeletons to isolate and support common-mode inductors, planar transformers, and capacitors in different zones. Custom silicone pads are equipped on both the front and back of the PCBA. Large areas of graphite thermal conductive stickers are laid inside the housings on both sides. Overall, the workmanship is solid, heat dissipation is robust, fully demonstrating Apple's consistent design philosophy.
Chongdiantou recently also tore down the Apple 40W Dynamic Charger.