Inside the Apple 1720 Charger included with the iPhone 11 Pro Max

Posted: September 27, 2019
Contributing Author: Sinjin Dixon-Warren

The iPhone 11 Pro Max ships with the Apple 1720 18 W USB-C power delivery charger. This device is rated to delivery 5 V and 3 A or 9 V and 2 A. In follow up to our recent blog concerning various aftermarket AC adapters, we decided to have a look inside the Apple product.

The 18 W A1720 is 4.3 cm by 4.3 cm by 2.7 cm corresponding to 50 cm3 (or 3.0 in3), thus giving a power density of 6 W/in3, which is only ~1/3 the power density achieved by the market leading Innergie 60C charger.

Cracking open the case of the A1720 we find a densely packed collection of electronic components mounted on a PCB. The backside of the PCB features a Cypress Semiconductor CYPD313532L-QXQQ and an Alpha & Omega AO32394E power MOSFET. The front side of the PCB is densely packed with three electrolytic capacitors, an inductor coil and a transformer. Removing these devices revealed two more packaged components, namely a Power Integrations SC1263K6 active flyback controller and an Infineon BSZ096N10LS5 100 V N-channel power MOSFET.

Manufacturer Part Number Prominent Markings Device Type Item Description
Cypress Semiconductor CYPD313532L-QXQQ CYPD313
532LQXQQ
1919 TWN
6157
USB Controller USB Type-C Port Controller.
Alpha & Omega AO32394E (LOGO)
32394E
GA9K1U
Power MOSFET Alpha & Omega AO33294E is a Power MOSFET.
Power IntegrationsInc SC1263K6 (LOGO)
SC1263K6
CV/CC Flyback Switcher IC Power Integrations Inc SC1263K6 is a CV/CC Flyback Switcher IC.
Infineon BSZ096N10LS5 S10L
RL21
Power MOSFET Infineon BSZ096N10LS5 is N-channel, OptiMOS 5, Power-Transistor rated for 100V.

Apple 1720 18 W USB-C

Apple 1720 18 W USB-C

Apple 1720 18 W USB-C

Apple 1720 18 W USB-C

Apple 1720 18 W USB-C

Apple 1720 18 W USB-C

Apple 1720 18 W USB-C

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