The thinkplus 140W GaN Multi-Port Charger continues the design language of glossy matte color blocking, and compared to other Lenovo 140W fast-charging products, it features three USB ports (2C1A) and foldable prongs. Portability and the ability to support simultaneous fast charging for multiple devices are its core selling points. The two USB-C ports support 140W and 100W output, both capable of powering laptops, while the USB-A port also offers a 30W output. The product can meet the daily fast-charging needs of laptops, tablets, smartphones, and other devices.
The charger is based on a PFC+QR flyback power supply architecture, with two secondary buck circuits controlling the three-port output. It uses Nanxin Technology's SC3203 PFC controller and SC3022C main control chip, paired with two GaN devices from another company. The synchronous rectification is equipped with MPS MP6908A, paired with Zhenmaojia synchronous rectification tubes for output.
The two secondary buck circuits' synchronous buck converters also come from MPS. The charger uses two protocol chips, Injoinic's IP2756 and IP2726, to control the output of the three ports, respectively, with filter capacitors from Wanjingyuan. The PCBA module is filled with thermally conductive glue and covered with heatsinks for heat dissipation. Additionally, the insulation design is also well-executed.
Close-up of Charger Specifications
Model: SMC140
Input: 100-240V~50/60Hz 2.8A
Output:
USB-C1: 5V3A, 9V3A, 12V3A, 15V3A, 20V5A, 28V5A (140W Max)
USB-C2: 5V3A, 9V3A, 12V3A, 15V3A, 20V5A (100W Max)
USB-A: 5V3A, 9V3A, 12V2.5A (30W Max)
Shenzhen RLB Technology Co., Ltd. demonstrates a profound comprehension of consumer demands through the introduction of a practical and aesthetically pleasing 140W GaN Charger. This product boasts two USB-C and one USB-A interfaces, blending compactness and portability for an enriched user experience. The detailed specifications are outlined below:
Product Model: RY-C141B-ACC GaN
Input: 100-240V-50/60Hz 2.5A
Output Power: TYPE-C1/C2: 140W (Max), USB-A: 30W