LE30ABZ

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The LE30ABZ is a type of linear voltage regulator, a subclass of PMIC power management components. It is used for providing regulated power for a wide variety of application fields, from low-power desktop computers to industrial equipment. Its primary function is to convert a higher input voltage to a lower output voltage, while providing additional features such as short-circuit protection, an adjustable current-limit, and over-temperature shutdown.

It operates on an input voltage range of 4.5V to 30V, a maximum output current of 500 mA and a maximum output voltage of 28V. The regulator also contains an adjustable current limit which allows the maximum current to be set to 1.25-A or lower. This ensures that the regulator operates safely under any load conditions.

The LE30ABZ also includes protection against reverse conduction, over-temperature shutdown and thermal foldback. This prevents excessive current from flowing, protecting the regulator from damage caused by overcurrent conditions. With the addition of these features, the regulator is able to maintain efficiency at any temperature and input voltages, increasing its reliability and performance.

The LE30ABZ\'s physical features also make it suitable for a variety of application fields. It measures only 1.58 x 1.10 x 0.45 inches, making it small enough for space-constrained applications. Additionally, its metal tab fin construction allows it to dissipate heat efficiently and make it suitable for high-temperature applications.

The LE30ABZ uses the well-known linear working principle to convert an input voltage to the desired output voltage. It works by building two internal components — a series pass device and a voltage reference — connected in series. The series pass device is made up of two voltage controlled transistors and two resistors, while the voltage reference is made up of two resistors.

When the input voltage is greater than the output voltage, a current flows through the transistors and through the voltage reference, which results in the output voltage being regulated to a constant value. The pass transistors act as a switched resistance, with the output voltage being adjustable by the voltage reference. As the load current increases, the voltage across the voltage reference increases, causing the transistors to switch on faster, reducing the output voltage.

The LE30ABZ is a high-performance linear voltage regulator that provides reliable operation, efficient heat dissipation, protection from overcurrent and voltage faults, and adjustable current limiting. It is suitable for a variety of application fields, from low-power desktop to industrial projects. Additionally, its small size and efficient working principle make it an ideal choice for DC-DC converters and power conditioning applications.

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