Lenovo has launched a 150W multi-port USB-C GaN power adapter, model MCFX150A3. The charger features three USB-C ports. Both C1 and C2 support 140W output regardless of blind insertion, while C3 supports 65W. When all three ports are used simultaneously, the 150W power is intelligently distributed. The supported protocols cover PD3.2, PPS, AVS, QC3+/QC5, as well as Lenovo and moto proprietary fast charging.
The product can sustain full-load output at 40°C, supports a 1.5x rated power peak redundancy, and has a leakage current of only one-fifth of the national standard. Previous tests by Chargerlab showed that at 28V5A, approximately 140W full load was maintained for 60 consecutive hours without power stepping down, with a maximum body temperature of about 62°C. The circuit adopts a two-stage PFC+HFB architecture, with the main controller and GaN devices both sourced from Infineon. Let's take a look at the teardown to see the internal build quality and materials.
When the product was launched, we also introduced its commercial-grade design. Those interested can click to view it.
Meanwhile, Chargerlab has also published a review article on this product. In a constant temperature environment, it ran at a full load of about 140W (28V5A) for 60 consecutive hours without any power stepping down, and the maximum body temperature was only about 62°C. The complete and detailed review is in the article below; those interested can click to read it.
Over the years, Chargerlab has torn down nearly 40 Lenovo chargers, with power ratings ranging from 10W to 400W.
In addition, Chargerlab has cumulatively torn down over 1,500 chargers, with a timeline spanning from 2015 to 2026.
Product Appearance
The packaging uses a kraft paper box, with the product rendering printed on the front, belonging to a restrained commercial packaging style.
The back of the packaging box is printed with detailed product specifications. The specific output parameters will be introduced in the subsequent physical product section.
Opening the packaging box reveals the power adapter itself.
Fully opened, it shows the power adapter itself, a charging cable, and a matching user manual.
The body is made of dark gray matte plastic, with rounded corners for a comfortable grip. A silver Lenovo Logo is in the middle of the front, which is not easy to get fingerprints on when placed on a desk.
For the output interfaces, the power adapter is configured with three Type-C ports, featuring red plastic tongues.
Close-up of the USB-C output port.
The circular area below the output panel is printed with a 150W power label.
Close-up of the complimentary data cable included in the package, bundled with a magic tape.
Side view of the charger, showing a moderate body thickness.
The nameplate side of the charger is screen-printed with detailed product information, a QR code, and certification marks.
Specific parameters are as follows:
Model: MCFX150A3
Input: 100-240V~ 50/60Hz, 2.0A
Output:
USB-C1: 5V 3.0A, 9V 3.0A, 15V 3.0A, 20V 5.0A, 20V 7.0A, 28V 5.0A (140W Max)
USB-C2: 5V 3.0A, 9V 3.0A, 15V 3.0A, 20V 5.0A, 20V 7.0A, 28V 5.0A (140W Max)
USB-C3: 5V 3.0A, 9V 3.0A, 15V 3.0A, 20V 3.25A (65W Max)
USB-C1+USB-C2: 100W+45W, 45W+100W, 75W+65W
USB-C1+USB-C3: 100W+45W, 75W+65W
USB-C2+USB-C3: 100W+45W, 75W+65W
USB-C1+USB-C2+USB-C3: 65W+65W+20W, 65W+20W+65W, 20W+65W+65W
Total Power: 150.0W Max
Manufacturer: Lenovo (Beijing) Limited
Made in China
The product has passed 3C certification.
Close-up of the pins, adopting the new national standard three-pin plug, with the middle pin for grounding. The metal surface is nickel-plated.
Close-up of both ends of the cable, with the USB-C connector printed with a 240W label.
Placing the charger in an adult male's palm, the size is as shown in the picture, offering good portability in the 150W power segment.
Product Dimensions and Weight
Measured with a caliper, the width of the charger body is about 83.82mm.
The body length is measured to be about 65.10mm.
The body thickness is measured to be about 32.87mm.
Placed on an electronic scale, the net weight of the charger is about 305.3g.
Measured with a tape measure, the length of the matching cable is about 180cm, matching common desktop charging scenarios.
Measured with a caliper, the outer diameter of the cable is about 4.32mm.
Placed on an electronic scale, the weight of the data cable is about 73.5g.
Comparing the Lenovo 150W charger with the Apple 140W charger, the Lenovo model has a volume comparable to the original Apple charger despite having more ports and higher power, showing good portability.
Fast Charging Protocol Compatibility
Tested with POWER-Z KM003C, the C1 port supports QC3+, PD3.2 140W, AVS, PPS, QC5, DCP, and Apple 2.4A charging protocols.
For the C1 port PDO messages, it features four fixed voltage gears of 5V3A, 9V3A, 15V3A, and 20V7A. AVS supports 9-20V, PPS has two voltage gears of 5-11V5A and 5-21V5A. Additionally, it supports the EPR 28V5A fixed gear and the 15-28V 140W EPR AVS gear.
The C2 port is tested to support QC3+, PD3.2 140W, AVS, PPS, QC5, and other protocols, consistent with the C1 port.
The corresponding PDO messages are also consistent with the C1 port.
The C3 port is tested to support QC3+, PD3.0 68W, DCP, and Apple 2.4A charging protocols.
For the C3 port PDO messages, it features two fixed voltage gears of 5V3A and 9V3A, and supports the MOTO proprietary fast charging protocol, with voltage gears of 12V3A, 15V3A, and 20V3.4A. PPS supports 5-11V6.2A and 5-20V3.4A.
Using KM003C to read the eMarker information of the matching cable, the cable is a passive data cable, adopting the Lenovo solution, with a power supply capability of 50V5A, i.e., 240W EPR, and built-in Hynetek HUSB332J eMarker chip.
Below is the charging test for a laptop, model Legion Y9000X IAX10, supporting 20V 12.25A input.
The actual charging power is 19.68V 6.67A, about 131.2W, successfully handshaking PD3.0 fast charging.
Actual test charging a MacBook, power is 27.66V 4.93A, about 136.5W, successfully handshaking the PD3.1 EPR 140W gear.
Switching to the USB-C2 port, the continuous charging power maintains at about 135W, and the EPR gear runs stably.
Switching to the USB-C3 port, the power is 19.77V 3.22A, about 63.6W, handshaking PD3.0.
When C1 and C2 are used simultaneously, the two POWER-Z meters display about 58.7W and 62.1W respectively.
When all three ports are used simultaneously, C1 and C2 continue to maintain outputs of about 58.7W and 62.2W, while the C3 port provides 8.6V 2.2A, about 18.8W charging for the iPhone.
Charging the iPhone alone, the actual test shows a power of 14.84V 2.53A, about 37.5W, handshaking PD3.0.
Full PCBA Analysis
Next, entering the teardown section, the body is disassembled along the shell seam. The internal PCBA module is wrapped by two pure copper heat sinks.
Close-up of the inside of the pin end. The AC input is connected to the PCBA module via wires, and components like the transformer are wrapped with tape for insulation.
Close-up of the back of the pin module.
The front of the PCBA module is covered with a full surface of pure copper heat sink for uniform heat dissipation.
The other side of the PCBA module is also tightly wrapped with a heat sink.
Measured with a caliper, the length of the PCBA module is about 79.69mm.
The width of the PCBA module is measured to be about 59.67mm.
The thickness of the PCBA module is measured to be about 28.51mm.
After removing the heat sinks on both sides, the components on the front of the PCBA are filled with white thermal adhesive, balancing heat conduction and reinforcement.
Black thermal pads are pasted on the inner side of the heat sinks.
Panoramic view of the front of the PCBA module, showing a compact layout of components such as transformers, inductors, and capacitors.
Another angle of the front of the PCBA module.
Close-up of the back of the PCBA module.
The front of the input EMI filter sub-board is equipped with safety X2 capacitors and inductors.
Close-up of the front of the EMI filter sub-board.
Panoramic view of the front of the main board, showing the overall layout of the PFC boost inductor, transformer, and filter capacitors for each rail.
Close-up of the three step-down output sub-boards.
The three step-down output designs are basically the same, equipped with step-down chips, protocol chips, step-down MOSFETs, VBUS switches, etc.
The sub-boards and components on the PCBA module are separated in sequence, including the main board, three step-down output sub-boards, EMI filter sub-board, as well as transformers, inductors, capacitors, and rectifier bridges.
Primary Side Circuit Analysis
The input fuse is from Beter, part number 936, specification 4A 250V, used for output overcurrent protection.
The safety X2 capacitor is from Huarong, capacity 0.22μF, used to filter out high-frequency interference in the power grid.
Close-up of the common mode inductor on the EMI filter sub-board.
The rectifier bridge is from Yangjie, model GBU810, specification 1000V 8A, adopting GBU package.
The common mode inductor uses a green magnetic core with bifilar winding to filter EMI interference.
The filter inductor is toroidally wound with enameled wire.
The PFC+HFB 2-in-1 controller is from Infineon, silk-screened XDPS2BF11, a custom model. It integrates a PFC controller and an HFB controller internally, responsible for the core control of the whole machine's power conversion, adopting a DSO-14 package.
The PFC switch is also from Infineon. IGL65R080D2 is an enhancement-mode GaN power transistor in Infineon's CoolGaN G5 series, silk-screened 65R080D2, adopting a PG-TSON-8 package. The device has a breakdown voltage of 650V, transient breakdown voltage up to 900V, and a maximum on-resistance of 100mΩ.
One PFC diode is Yangjie MUR5AU60, specification 600V 5A.
The film capacitor is from Dongguan Chengxi, model MKPH-H, specification 0.33μF 450V.
The second film capacitor is model MPB-H, capacity 1.5μF, also with a 450V voltage rating.
The third film capacitor has a capacity of 1μF and a voltage rating of 450V, used for high-voltage filtering.
The PFC boost inductor is inkjet printed with LX150W-ATQ24, externally wrapped with yellow tape for insulation.
The high-voltage filter electrolytic capacitor is from Aihua, specification 450V 100μF.
Close-up of the high-voltage filter electrolytic capacitor.
The filter electrolytic capacitor powering the primary chip is from Aihua, specification 100V 33μF.
Another Aihua electrolytic capacitor, specification 50V 47μF.
The HFB half-bridge switch is from Infineon's CoolGaN series, model IGI65D1414A. It integrates two enhancement-mode GaN switches with 140mΩ on-resistance and 650V breakdown voltage to form a half-bridge power stage, adopting a QFN package.
The SMD Y capacitor is from Sichuan Terey Technology Co., Ltd., featuring small size and light weight, very suitable for high-density power products like GaN fast chargers, part number TMY1470J.
Information on the Terey SMD Y capacitor.
Another Terey SMD Y capacitor, part number TMY1271K.
Close-up of the optocoupler, used for feedback communication between the primary and secondary sides to regulate the output voltage.
Close-up of the main transformer, inkjet printed with LX150W-ATQ2719, wrapped with tape for insulation.
Synchronous Rectification Circuit Analysis
A synchronous rectification chip silk-screened 018Q35.
The synchronous rectifier is from PINGWEI, model PW038N10ESL, NMOS, 100V breakdown voltage, 3.2mΩ on-resistance.
Two solid filter capacitors are from Polycap, specification 35V 560μF, used for output filtering.
Close-up of the front of the output sub-board, equipped with filter capacitors and step-down inductors.
Another angle of the output sub-board, showing the protocol chip, VBUS switch, and USB-C female connector. The step-down output sub-boards for USB-C1 and C2 are basically the same in design.
The synchronous step-down chip is from Southchip, model SC8002. It is used to step down the input voltage, and the output voltage is controlled by the Southchip SC2021A dual-port protocol chip to support 80W fast charging. Southchip SC8002 supports 36V input voltage, high-precision output current limiting, and dual-channel independent current limiting. SC8002 can be used in car chargers, multi-port chargers, USB HUBs, and other applications.
Detailed information on Southchip SC8002.
Two step-down MOSFETs silk-screened 024042.
Close-up of the step-down inductor, specification 4.7μH.
A power supply control transistor is from PINGWEI, model PW150P04HL, PMOS, -40V breakdown voltage, 10.5mΩ on-resistance, adopting a DFN3*3 package.
The protocol chip is from Hynetek, model HUSB362. HUSB362 is a high-performance PD protocol chip supporting PD3.1 EPR and integrating a 32-bit MCU.
The chip features 32 KB MTP memory, supporting multiple PDOs with programmable voltage and current, such as PPS PDO and EPR PDO. All PDOs fully comply with the USB PD 3.1 V1.8 specification. HUSB362 has passed the USB-IF PD3.1 compliance test, with EPR TID 9692.
HUSB362 also implements a programmable DPDM PHY. The D+ and D- pins can be configured to support QC2.0, QC3.0, AFC, FCP, and Divider 3 modes, providing excellent compatibility for legacy devices.
HUSB362 integrates an N-MOS driver to control whether VIN and VBUS are connected, thereby protecting devices connected to the Type-C connector. Additionally, the high voltage tolerance and protection of its CC1, CC2, D+, and D- pins provide more reliability for the system. Besides, for LPS (Limited Power Supply), HUSB362 also has sufficient protection design.
The VBUS switch is silk-screened 024042.
A Polycap filter output capacitor, specification 35V 330μF.
The output female connector uses an orange plastic tongue.
The step-down output sub-boards for USB-C1 and USB-C2 are basically the same in design, so no further details are needed here.
The step-down chip for USB-C3 is also Southchip SC8002.
The step-down MOSFET for USB-C3 is from PINGWEI, silk-screened 055N04HSL.
The step-down MOSFETs for USB-C3 use MOS transistors silk-screened 024042 and 055N04HSL.
Close-up of the step-down inductor for USB-C3, also with a specification of 4.7μH.
The power supply switching control transistor is also from PINGWEI, model PW150P04HL, PMOS, -40V breakdown voltage, 10.5mΩ on-resistance, adopting a DFN3*3 package.
The protocol chip for the USB-C3 port is also from Hynetek, model HUSB362.
The VBUS switch uses a MOS transistor from PINGWEI, silk-screened 055N04HSL.
A Polycap filter output capacitor, specification 25V 330μF.
The teardown is fully completed, here is a family photo.
Chargerlab Summary
Finally, the bill of materials for the product is attached for your reference.
From the teardown by Chargerlab, it is understood that this Lenovo 150W multi-port GaN adapter adopts a two-stage PFC+HFB architecture. The main controller XDPS2BF11, GaN half-bridge IGI65D1414A, and PFC switch IGL65R080D2 are all from Infineon, forming a mature solution verified by original power supplies from major manufacturers. The output end uses three sub-boards to handle the three USB-C ports, with Southchip SC8002 for step-down and Hynetek HUSB362 for the protocol chip. Capacitors are from first-tier brands such as Aihua, Polycap, and Terey. The whole machine is reinforced with glue, featuring double-sided brass heat sinks combined with grounded pins.
For desktop users who need to power laptops, tablets, and smartphones simultaneously, replacing three or four original adapters with a single plug is its most practical value.