Introduction 

CUKTECH has released a new car charger, featuring an integrated retractable cable and support for both 65W PD fast charging and Xiaomi’s 90W Surge Fast Charge. In addition to the built-in cable, it includes one USB-A port and one USB-C port, each supporting up to 33W output. Combined with the retractable cable, the charger offers 80W + 20W and 65W + 33W power-distribution configurations. It is also equipped with a digital display that shows real-time output power and vehicle battery voltage. Next, let’s take a closer look at its internal components and design.

Product Appearance

The front of the packaging displays the product name, an image of the device, 100W, and Powered by CUKTECH.

The back of the packaging shows usage scenarios along with the product specifications.

The package includes the car charger and a user manual.

It comes in a silver-gray color scheme with a block-shaped design at the end.

The model is CC903P, and it supports a 12–24V, 9.5A input.

Single-port output:

USB-C retractable cable: 5/9/12/15V⎓3A, 20V⎓3.25A, 5–11V⎓5A, 5–20V⎓4.5A, up to 90W

USB-C port: 5V⎓3A, 9V⎓3A, 5–11V⎓3A, up to 33W

USB-A port: 5V⎓3A, 9V⎓2A, 5–11V⎓3A, up to 33W

With all three ports in use simultaneously, the total output reaches 100W.

The side features one USB-A port, one USB-C port, and a USB-C retractable cable.

The retractable cable’s connector slot features a magnetic design, making it easy to store.

The digital display is located on the top, with “CUKTECH” printed above it.

It can monitor the vehicle’s voltage.

This is the digital display reading under a 14V power supply.

It can also display the output power.

The length of the car charger is about 96.11 mm (3.78 inches).

The width is about 48.62 mm (1.91 inches). 

The thickness is about 30.24 mm (1.19 inches).

The length of the retractable cable is about 68 cm (26.77 inches).

The weight is about 77 g (2.72 oz).

Under a 24V DC input, the ChargerLAB POWER-Z KM003C indicates that the retractable cable supports QC3.0/4+, FCP, SCP, AFC, PD3.0, PPS, DCP, and Apple 2.4A charging protocols.

It also supports Xiaomi’s 90W Surge Fast Charge.

It features five fixed PDOs of 5V3A, 9V3A, 12V3A, 15V3A, and 20V3.25A, along with a PPS voltage level of 5–11V5A and a Xiaomi proprietary fast-charging level of 5–20V4.5A.

The USB-C port supports UFCS, QC3.0, FCP, SCP, AFC, DCP, and Apple 2.4A charging protocols.

The USB-A port supports the same charging protocols as the USB-C port.

Under a 14V DC input, testing shows that the USB-C retractable cable also supports QC3.0/4+, FCP, SCP, AFC, PD3.0, PPS, DCP, and Apple 2.4A charging protocols.

It also supports Xiaomi’s 90W Surge Fast Charge.

It features five fixed PDOs of 5V3A, 9V3A, 12V3A, 15V3A, and 20V3.25A, along with a PPS voltage level of 5–11V5A and a Xiaomi proprietary fast-charging level of 5–20V4.5A.

The USB-C port supports UFCS, QC3.0, FCP, SCP, AFC, DCP, and Apple 2.4A charging protocols.

The USB-A port supports the same charging protocols as the USB-C port.

Teardown

Next, let's take it apart to see its internal components and structure.

Remove the L-shaped side cover, which is secured with clips.

Continuing the disassembly reveals the main control PCB.

The PCB is secured with screws.

Remove the PCB. The retractable cable module is located underneath.

This is the magnet used to hold the retractable cable connector in place.

The input section uses a separate small PCB, which is connected to the main control PCB via wires.

The retractable cable module is connected to the PCB via a ribbon cable, with the solder joints reinforced using adhesive.

Separate the input PCB. The front side reveals a solid capacitor for input filtering.

The back side is equipped with an SMD fuse.

Close-up of the input SMD fuse.

The solid capacitor has a specification of 35V, 220 μF.

The front side of the main control PCB features a synchronous buck-boost controller, protocol chips, VBUS MOSFETs, inductors, and solid capacitors.

The back side contains a synchronous buck converter, synchronous buck-boost MOSFETs, and an MCU.

This solid capacitor is from BERYL, with a specification of 35V, 100 μF.

The synchronous buck-boost controller for the USB-C retractable cable is from Powlicon, model PL5501. It supports a wide input voltage up to 32V and a continuous load current of 20A. It operates in buck, boost, and buck-boost modes using constant-on-time control to achieve excellent load and voltage regulation. The switching frequency is programmable at 150 kHz, 300 kHz, 600 kHz, or 1.2 MHz. The device comes in a QFN 4×4‑32 package.

The accompanying four synchronous buck-boost MOSFETs are from PY, model PW055N04ESL. They are NMOS devices with a 40V voltage rating and come in a DFN 5×6 package.

The buck-boost inductor is insulated and protected with a heat-shrink sleeve.

This solid capacitor for output filtering is from BERYL, with a specification of 25V, 220 μF.

The protocol chip for the USB-C retractable cable is from Injoinic, model IP2723T. It has been certified by the USB-IF association for PD3.0 PPS, TID: 3135, and is an integrated fast-charging protocol IC for USB output ports. It supports a wide range of fast-charging protocols, including USB Type-C DFP, PD2.0/3.0, PPS, HVDCP QC4, QC4+, QC3.0/2.0, FCP, SCP, AFC, MTK PE+ 2.0/1.1, Apple 2.4A, BC1.2, and Samsung 2.0A. On the right side is a TVS diode for the USB-C female port, providing ESD protection.

It provides a complete Type-C solution for unidirectional output applications such as adapters and car chargers. In addition, the IP2723T features high integration and rich functionality, requiring minimal external components, which effectively reduces the overall solution size and lowers BOM costs.

Here is the information about Injoinic IP2723T.

The output VBUS MOSFET is from Vergiga, model VS3618BE. It is an NMOS with a voltage rating of 30V, an on-resistance of 5.2 mΩ, and comes in a PDFN3333 package.

Here is the information about Vergiga VS3618BE.

The synchronous buck converter for the USB-A and USB-C ports is from SouthChip, model SC8110, and comes in a QFN32 package.

Close-up of the accompanying buck inductor.

The solid capacitor for the buck output filtering is from BERYL, with a specification of 16V, 220 μF.

The protocol chip for the USB-A and USB-C ports is from HYASiC, model HYC5323UB. It is a high-performance, highly integrated power delivery and dual-port controller. It integrates multiple fast-charging protocols, including BC1.2 DCP, Apple 2.4A, QC2.0/3.0/3.0+, AFC, FCP, SCP, UFCS, and PE+1.1/2.0. The chip comes in a QFN 4 mm × 4 mm‑32L package.

The MCU is from Cmsemicon, model SC8F073. It is a high-performance, highly integrated 8-bit microcontroller, supporting up to 16 MHz operation and a wide voltage range of 1.8V–5.5V. It integrates 4K × 16-bit ROM and 128 bytes of EEPROM for convenient data storage.

The chip offers rich peripheral resources: it features five high-precision 10-bit PWM channels with complementary output, making it well-suited for motor control; one USART communication module and a 12-bit high-precision ADC ensure reliable communication and accurate analog signal acquisition. Additionally, it includes two built-in comparators, multiple timers, and various interrupt sources. Combined with an industrial-grade operating temperature range of –40 °C to 85 °C, it is an ideal choice for a wide range of smart control applications.

Close-up of the digital display.

The case of the retractable cable module is secured with screws.

The other side is fitted with cushioning foam.

Disassemble the retractable cable module.

Close-up of the PCB slip ring.

The spool is equipped with three brushes to increase current-carrying capacity.

Well, those are all components of the CUKTECH 10 100W Car Charger with Retractable Cable.

Summary of ChargerLAB

Here is the component list of the CUKTECH 10 100W Car Charger with Retractable Cable for your convenience.

It not only features a USB-C retractable cable but also comes with a digital display. With a 12–24V input, the retractable cable and USB ports can deliver up to 90W and 33W output, respectively. All three ports can operate simultaneously, with a maximum total output of 100W.

After taking it apart, we found that it uses a dual-regulation circuit design. The USB-C retractable cable employs a Powlicon PL5501 synchronous buck-boost controller paired with four PY synchronous buck-boost MOSFETs, with output controlled by the Injoinic IP2723T protocol chip. The USB-A and USB-C ports use a SouthChip SC8110 synchronous buck converter for voltage regulation, with output controlled by the HYASiC HYC5322 protocol chip.

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