MAX17621ATA+T

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The MAX17621ATA+T is a DC-DC switching controller that is part of the category of PMIC (Power Management Integrated Circuits). It is a voltage regulator that is reliable and efficient and is used in a variety of applications. The MAX17621ATA+T provides accurate high efficiency control of power converters with its current mode control loop architecture and proprietary cycle-by-cycle current limiting circuit.

The MAX17621ATA+T has many features and design parameters necessary to facilitate and optimize DC-DC converter designs. It uses BiCMOS technology with a supply voltage range from 2.75 to 5.5V and can deliver up to 8A of output current for output voltages up to 40V. It includes an adjustable switching frequency up to 1MHz, programmable soft-start, and fixed frequency operation for low noise, high reliability applications.

The MAX17621ATA+T has a wide variety of output configurations and wide input voltage ranges (3.3V up to 40V). It offers a TSSOP enabled version which further increases design flexibility by allowing external connections to the MAX17621ATA+T. This feature is useful for applications that require additional isolated outputs or different adjustment and control functions.

The MAX17621ATA+T offers several features and options to control the operation of a power converter when used in a variety of applications. The operating principles of the MAX17621ATA+T are based on peak current mode control, which consists of an inner voltage control loop and an outer peak current loop. The voltage control loop regulates the output voltage by sensing the voltage across the output filter inductor. The maximum current limit circuit is used to protect the switch from being over current. It utilizes a unique approach of measuring the voltage at the mid-point of the upper and lower terminals of the power switch. Once the switch current exceeds the predetermined limit, this mid-point voltage drops and is detected by a comparator and the regulator immediately shuts down the voltage control loop.

The MAX17621ATA+T is both highly efficient and reliable and is used in a variety of applications. It is suitable for applications such as DC-DC converters for consumer electronics, portable devices, automotive electronics and others requiring a highly efficient and reliable solution. It is used in applications requiring high load current and high application efficiency, including fan control, LED display control, computer server power supplies and industrial power supplies. The MAX17621ATA+T is also suitable for applications such as battery charge controllers, DC-AC inverters, and solar arrays.

The design of the MAX17621ATA+T is based on a half-bridge topology for a standard coaxial step-up converter. This topology is chosen for its low-profile height, emphasizing less board space and low-power losses. The main components used in the MAX17621ATA+T are the power switch (a N-channel MOSFET), the voltage regulator controller, the output capacitor, the transformer, and the power inductors.

The power switch is responsible for the energy transfer between the input and output of the power circuit, which is controlled by the voltage controller. The transformer will provide the flyback voltage necessary to increase the output voltage to its required level. The output capacitor and the power inductors will provide energy storage, increase the stability of the power circuit, and stop any excessive current flow. All these components are connected and combined to form the complete MAX17621ATA+T voltage regulator.

In conclusion, the MAX17621ATA+T is a DC-DC switching controller that is part of the category of PMIC (Power Management Integrated Circuits). It is an accurate, high-efficiency voltage regulator used in a variety of applications. It is suitable for applications such as DC-DC converters for consumer electronics, portable devices, automotive electronics, battery charge controllers, and DC-AC inverters. The main components used in the MAX17621ATA+T are the power switch, the voltage regulator controller, the output capacitor, the transformer, and the power inductors. The design of the MAX17621ATA+T is based on a half-bridge topology for a standard coaxial step-up converter, providing the user with a low-profile height and low-power losses.

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