ForewordWith the continuous development of the fast charging market, the charging power is also rising, in the face of today's fierce fast charging source chip market, Toll Micro has successively launched a variety of DC-DC chips to meet the use of high-power fast charging equipment, helping manufacturers to accelerate the product development process, efficiently promote the development of the fast charging field, and finally occupy a place in this unpredictable fast charging market. Toll micro DC-DC chip
Following the market demand, Toll Micro has successively launched TMI2282L, TMI2283QE, TMI2286, TMI2286D, STI3408BSTI3470 DC-DC chips. Toll Micro TMI2282LThe TMI2282L is a wide input voltage, high efficiency active CC step-down DC DC converter that can operate in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode. 
The TMI2282L offers up to 2Typical output current limit of 75A with floating ISET pins. The switching frequency can be set by an external resistor. A maximum 100% duty cycle can be obtained. The synchronous rectification step-down IC adopts the structure of PMOS+NMOS, and supports multiple functions such as UVLO, thermal shutdown, soft start, and input OVP. 
See the figure above for details of TMI2282L. Application examplesBunkers refrigeration magnetic wireless chargingBunkers has launched a two-in-one design refrigeration wireless charger W07, and also added a magnetic design. For users after iPhone 12, it can not only carry out magnetic wireless charging, but also reduce the temperature rise of the mobile phone, so that the experience of playing while charging has risen to a new level. 
Bunkers' refrigeration wireless charger is shaped like a small moon cake, PC material plastic shell, matte surface with skin-like feel, silver gray decorative ring at the top, and a bulge similar to a buckle on the edge, the design style is very distinctive. Pengyuansheng 10W vertical dual-coil wireless chargerPengyuansheng has launched a vertical wireless charger that supports 1A1C dual output, of which the USB-C port supports 18W fast charging, which can provide a fast charging experience for connected devices. The wireless charger is a classic base and support plate integrated design, the shell is high-gloss and glossy, the edges are rounded, and the edge of the base is also equipped with a bright silver decorative ring, and the overall product is simple and dignified. 
The front of the support plate is pasted with transparent acrylic panel, and the upper area is designed with the word soodagek. In addition, there are dual coils inside the board, which supports the mobile phone to be placed horizontally and vertically for wireless charging. The support plate and bottom support platform are designed to be tilted, so that the mobile phone is very stable and will not be turned out, and it can also improve the user's experience of watching dramas while charging. Toll Micro TMI2283QE
The step-down converter corresponding to the 5V output of the USB-A interface adopts Toll TMI2283QE, which is a synchronous step-down converter with a built-in switch, supporting 30V power supply voltage and output current up to 35A, adjustable working frequency, integrated soft start and overheat shutdown, suitable for car chargers, adapters, power banks and other applications. 
Toll Micro TMI2283QE details. Application examplesAnker 65W 2C1A Full GaN Fast Charging SocketAnker has launched a GanPrime series 65W all-gallium nitride fast charging socket. This fast charging socket has two new national standard five-hole AC sockets to meet the use of high-power devices. It also has three output interfaces of 2C1A, two USB-C interfaces support 65W fast charging output, and supports power blind plugging. The included cable can be stored through the rubber covered by the shell, which is convenient and beautiful. 
Anker's fast charging socket has a round white body, and the power cord seems to be "very short", but in fact, the design is hidden in mystery, which will be explained in detail below. The plug can be inserted into the jack of the fuselage, and the whole looks very neat and compact, so that the socket is no longer imaginary. Momis 100W 4C2A 6-Port GaN Wireless Desktop ChargerMomis has launched a high-power desktop charger with GaN technology and 100W output power. The charger has a total of six output ports in 4C2A, and there is also a wireless charging coil on the top to charge the phone wirelessly. Among them, the USB-C1 and USB-C2 ports both support 100W power output, and have the function of automatic power allocation, and multiple devices can be charged at the same time and fast charging. 
As a desktop charging station, multiple output interfaces, 100W output power and wireless charging make this desktop charger quite practical, which can meet the charging needs of multiple devices at the same time. Toll Micro TMI2286The TMI2286 is a wide input voltage, high efficiency active CC step-down DC DC converter that can operate in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode. 
The TMI2286 offers up to 5 at 3V output8A of total output current. The switching frequency can be set by an external resistor. Supports a maximum 100% duty cycle. The TMI2286 has an integrated MOSFET and supports UVLO, thermal shutdown, soft-start, and input OVP.
The details of Toll Micro TMI2286 are shown in the figure above. Application examplesBaseus 100W one-in-two data cableBaseus has launched a 100W one-in-two fast charging data cable, the input terminal is a USB-C head, which can be adapted to all PD fast charging Apple chargers, and the output end is divided into USB-C head and Lightning head, which support 100W and 20W fast charging respectively, following the 80W+20W simultaneous output strategy.
Cables are bundled and organized with Magic Cable Ties, and the length can be adjusted at will when used to help keep the desktop tidy. The input terminal is made of black plastic housing and matte for easy mating and unplugging, and it is also decorated with a metal ring and a mesh tail for enhanced bending resistance. The shell of the splitter is also mainly made of plastic shell, and the head is covered with an anti-oxidation aluminum alloy shell, which will not rust when used in a humid environment. Toll Micro TMI2286DThe TMI2286D is a wide input voltage, high efficiency active CC step-down DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode.
The TMI2286D offers up to 5 at 3V output5A of typical output current. Supports a maximum 100% duty cycle. The TMI2286D has an integrated MOSFET. The chip also supports UVLO, thermal shutdown, soft-start, and input OVP functions.
The details of TMI2286D are as above. Application examplesHARMAN InfinityLab 100W 2A2C GaN ChargerThis 100W four-port charger from InfinityLab comes with American, European and British plugs, eliminating the hassle of buying a pin converter. The charger has two USB-C ports that support 100W output and two USB-A jacks with 5V output to meet the charging needs of laptops, mobile phones and traditional legacy devices.
The center area of one side of the charger pin is a yellow shell, and the front and back shells and side shells are gray, one light and one light, and the surface is frosted and anti-fingerprint. Kaikong Source 45W Double C ChargerThis charger is a 45W dual C port charger developed and designed by Smartecon and produced by Kaikongyuan. The two interfaces are supported by Apple 24a、qc3+、qc4+、afc、fcp、pd3.0. PPS fast charging protocol. And with 5V3A, 9V3A, 12V3A, 15V3A, 20V225A five sets of fixed voltage ranges, and 33-11v3a、3.3-16v2.8A two sets of PPS voltage ranges. It can meet the charging needs of mainstream brand mobile phones and laptops.
The charger is designed with a straight board shape, with a black shell made of PC material, and the surface is frosted and anti-fingerprint. The front of the fuselage is designed with a Z-shaped glossy groove, one thin and one thick. The charger is equipped with foldable US-spec pins, which is easy to carry and does not easily scratch other devices in the bag. The top surface is equipped with the popular dual USB-C interface, and the black rubber core does not expose copper. Momis 67W car chargerThis dual-port car charger is equipped with 1A1C two output interfaces, USB-C interface supports 67W output, USB-A port supports 18W output, and the power upper limit is 67W when the dual ports are output at the same time, and dynamic power allocation is supported. Among them, the USB-C port adopts a buck-boost scheme, and it can also output 20V in the case of 12V input, which is very compatible.
The appearance of this 67W car charger adopts a family-style design, the main body is a one-piece metal shell, and the top surface of the input and output is a black matte plastic shell. And there is a power-on indicator, and the car charging light ring is bright blue after power-on. In addition, the chip solution inside this dual-port car charger is all from Toll Micro, including the internal buck-boost controller, step-down converter and protocol chip. Momis 100w car chargerMomis is equipped with 2C1A three output interfaces, with a total output power of 100W, and the USB-C1 interface supports a maximum of 100W output power, the USB-C2 interface supports 30W output power, the USB-A port supports 18W output power, and the total power limit is 100W when the three ports are output at the same time, and the power dynamic distribution is supported.
Momis is a classic two-stage cylindrical fuselage design, the main body is a one-piece metal shell, and the top surface of the input and output is a black matte plastic shell. And there is a power-on indicator, and the car charging light ring is bright blue after power-on. In addition, the full set of Mommis car charger adopts the fast charging solution of Tor Microelectronics, and the buck-boost controller, step-down converter and protocol chip are all provided by Tor Micro. TOLL Micro 65W 2C1A GaN Fast ChargerThis is the original chip factory Toll Microelectronics launched Toll's own brand of gallium nitride fast charging, which uses Toll Micro's own protocol chip + step-down scheme internally, supporting dual-port blind plug output, which is the same as the mainstream charger on the market, which is very practical.
The charger is made of PC white shell, with a glossy surface and rounded corners. Double-wing design is added on both sides of the input housing to improve stability. The charger is equipped with foldable GB prongs, which is easy to carry and will not scratch other devices in the bag. The output is equipped with 2C1A three USB ports, all of which are black glue cores. Toll Microsti 3408BThe TOR STI3408B is a constant frequency, current-mode PWM step-down converter. The chip integrates a main switch and a synchronous rectifier to achieve high efficiency without the need for an external Schottky diode.
The output voltage of the STI3408B can be adjusted down to 06v。The chip can also support 100% duty cycle operation. The chip offers two modes of operation: PWM control and PFM mode switch control for high efficiency over a wider load range.
Toll Microsti 3408B Details. Application examplesEECO USB-C to HDMI ConverterEECO introduces a USB-C to HDMI converter that is short, compact, easy to use and easy to carry. It solves the dilemma that some laptops do not have HDMI interfaces.
The EECO USB-C to HDMI converter comes with a USB-C cable, the body shell is made of PC flame retardant material, the semi-circular arc surface design on both sides, and the cable is anti-bending. Toll Microsti 3470The Toll Microsti3470 is a fully integrated, high-efficiency 20A synchronous rectification buck converter. The sti3470 operates efficiently over a wide range of output current loads.
The device offers two modes of operation: PWM control and PFM mode switching control, which enable high efficiency over a wider load range. The STI3470 requires a minimum number of off-the-shelf standard external components and is available in a 6-pin SOT23 RoHS-compatible package.
The details of Toll Microsti3470 are as above. Application examplesTesla 10000mAh two-way wireless power bankCompared with the common wireless power bank on the market, one of the major features of Tesla's power bank is that it can not only support 10W wireless output, but also support wireless charging, that is, it supports two-way wireless charging.
Summary of the charging head networkAfter more than ten years of R&D accumulation and market expansion, the company has established branches and R&D centers in Hangzhou, Shenzhen, Xiamen, Guangzhou, Chengdu and Taiwan, forming a number of product series including power management, motor drive, lithium battery management, signal chain and airflow sensor ASIC chips. The company has strong technology research and development and innovation capabilities, and is a national key specialized, special and new "little giant" enterprise recognized by the Ministry of Industry and Information Technology, a "Shaanxi Province Intellectual Property Advantage Enterprise" recognized by the Shaanxi Provincial Intellectual Property Office, the first batch of international cooperation base enterprises in Xi'an, and has also won the honorary titles of National Hard Science and Technology Enterprise Star TOP100, Xi'an Hard Technology Enterprise Star TOP30, and Xi'an High-tech Zone Advanced Manufacturing Outstanding Enterprise. The Toll Micro DC-DC chip mentioned in this article has many advantages such as high efficiency, strong performance, low power consumption, and simplified peripherals, and can be widely used in a variety of charging equipment such as PD fast charging, vehicle charging, and fast charging sockets. The selection of Toll Micro's products can effectively reduce the PCB footprint, simplify the development process, reduce manufacturing costs, accelerate the product launch process, and effectively enhance product competitiveness.