MTC15028S3V3

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DC (Direct Current) to DC (Direct current) converters enable energy from a direct current source to be converted into a direct current with higher voltage and/or current. The wide range of applications for DC/DC converters extends from the home electronics market to military, aerospace, automotive, and industrial markets, which require reliable, efficient, and cost-effective power conversion solutions. In particular, the MTC15028S3V3 is a switching DC/DC converter designed to deliver high efficiency with low heat dissipation, in a wide range of applications.

MTC15028S3V3 Application Field
The MTC15028S3V3 is a high efficiency, 15W/3V, and highly reliable, DC/DC switching power converter module. It is designed to offer maximum power conversion efficiency of 90% with ultra-low power dissipation. This converter has been designed with a wide input voltage range of 5.5V to 21V, and a wide operating temperature span of -40C to 85C. It is suitable for switching power supply applications such as industrial, communications, computer systems, automotive, battery powered, and LED lighting systems.

In addition to the wide input voltage and operating temperature range, this converter module is designed with a wide range of protection features. These include over current, under voltage, over voltage, over temperature, and output short circuit protection. This converter is also RoHS compliant and meets the international safety standards for ITE (Information Technology Equipment) and household electronic products.

Working Principle of MTC15028S3V3
The MTC15028S3V3 DC-DC converter works on the principle of switching power from a DC input voltage to a DC output voltage with high efficiency, and minimal power dissipation. It consists of three main parts: the power switching stage, the control and protection stage, and the output filtering stage.

The power switching stage consists of the power switch, the protection circuit, the resonant inductor, and the resonant capacitor. This stage is responsible for the power conversion, and the efficiency of the system. The power switch, which is typically a MOSFET (Metal Oxide Semiconductor Field-Effect Transistor), can be switched on and off at a high frequency in order to transfer the power from the input voltage to the output voltage with minimal losses.

The protection circuit is responsible for safeguarding the system during operation, by providing protection against overvoltage, undervoltage, and overcurrent. This protection circuit also allows for safe operation of the converter. The other components, the resonant inductor and the resonant capacitor, help to reduce the switching losses and enhance the converter efficiency.

The control and protection stage consists of the PWM (Pulse Width Modulation) controller, the logic control circuit, and the opto-coupler. The PWM Controller is responsible for controlling the switching frequency, duty cycle, and power output of the converter. The PWM controller is also responsible for adjusting the switching frequencies, in order to maintain the desired voltage and current levels of the output. The logic control circuit is responsible for regulating the control signals of the PWM Controller, as well as providing protection against overvoltage and overcurrent. Lastly, the opto-coupler provides a low-noise optical interface for the PWM signal.

The output filtering stage is responsible for filtering the output voltage of the converter, in order to eliminate any high-frequency noise. The filter consists of an electrolytic capacitor and an inductor, which help to reduce the ripple voltage at the output. This stage also helps to enhance the stability of the output voltage.

Overall, the MTC15028S3V3 is an extremely efficient, reliable, and cost-effective DC-DC converter module designed for a wide range of applications. The high efficiency, low power dissipation, and wide operating temperature range makes this converter ideal for industrial, communications, computer systems, automotive, battery powered, and LED lighting systems.

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