A4403GEUTR-T Integrated Circuits (ICs)

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A4403GEUTR-T Application Field and Working Principle

The A4403GEUTR-T is a dual DC-DC synchronous buck converter that can deliver up to 8A of current at a total output voltage of 5V from an input voltage of 9V to 18V. It is designed to provide a simple, reliable, and cost-effective DC-DC buck solution for space-constrained applications. A4403GEUTR-T belongs to the PMIC (Power Module Interface Controller) category called Voltage Regulators, and more specifically, DC-DC Switching Regulators.

The A4403GEUTR-T can be used to supply power to loads such as a processor core, display panel, FAN, RFID reader, and more. It is well suited for applications such as industrial automation, smart home, and consumer electronics. The A4403GEUTR-T is designed to provide high efficiency with low noise. It boasts an excellent transient response, so it can quickly and accurately respond to fast load transients. The switching frequency is flexible and adjustable, so you can use it to optimize your system thermal requirements or to create specific phase shifted designs.

The A4403GEUTR-T features a 3-stage architecture that includes an input stage, a synchronous converter, and an output stage. The input stage consists of a rectifier, a voltage-mode controller, an LDO (Low Drop Out) regulator, an ENA (Enable) circuit, and a slew rate control circuit. The synchronous converter is powered by the rectified input voltage and contains an oscillator, a voltage error amplifier, a PWM (Pulse Width Modulation) module, a current sense amplifier, a synchronous rectifier, and an output filter. The output stage is equipped with synchronous rectifiers to provide adjustable output current, voltage, and slew rate.

The A4403GEUTR-T also supports a variety of protections, such as input undervoltage lockout (UVLO) protection, output overvoltage protection, thermal protection, and over-current protection. It also has a low standby power mode to reduce idle current consumption. The A4403GEUTR-T is a highly integrated device with integrated safety features, making it ideal for a wide range of DC-DC applications.

In summary, the A4403GEUTR-T is a dual DC-DC synchronous buck converter that is designed to provide a reliable and cost-effective power solution for space-constrained applications. It supports a variety of protections, making it suitable for a wide range of DC-DC applications. It is well suited for industrial automation, smart home, and consumer electronics, and can deliver up to 8A of current at a total output voltage of 5V from an input voltage of 9V to 18V.

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