REG103FA-2.5KTTT

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Linear Voltage Regulators (also referred to as LDO voltage regulators) are regulators that provide precise output voltage and current regulation, with minimum noise and power consumption. The REG103FA-2.5KTTT is a low-dropout (LDO) linear regulator designed to be used in low-power and low-voltage applications.

Application Field of the REG103FA-2.5KTTT

The REG103FA-2.5KTTT is primarily designed for use in applications such as automotive, industrial and general purpose electronics. It is primarily suited for applications that require low noise, low power consumption and low input to output voltage differential. The REG103FA-2.5KTTT can be used for both linear and switching mode power supplies. Its high input voltage range makes it particularly suitable for high voltage DC to DC applications.

The REG103FA-2.5KTTT is suitable for powering both digital and analog circuits, such as timers, microprocessors, voltage converters and system monitoring circuits. Its high-switching frequency of up to 2MHz makes it suitable for high frequency digital circuits, such as digital signal processing (DSP) and digital radio-frequency (RF) circuits. It also offers higher range of operating temperature (up to +125°C, +85°C with dust-control spray) and very low quiescent current of only 1.2 uA, making it suitable for use in battery-operated equipment and low-power applications.

Working Principle of the REG103FA-2.5KTTT

The REG103FA-2.5KTTT is a low-dropout (LDO) linear voltage regulator. In other words, it is designed to provide a precisely regulated output voltage, while maintaining a low drop-out voltage between the input voltage and the output voltage. This is achieved using a principle called "foldback".

In foldback mode, the regulator maintains a low drop-out voltage between its input and output, even when the input voltage is higher than the regulator\'s rated output voltage. The regulator reduces the difference between the input and output voltage until it reaches the value of the foldback current (IETF). When the input voltage exceeds the foldback current, the regulator reduces the output current, thus limiting the output voltage to the foldback current.

The REG103FA-2.5KTTT also features a UV-fault protection and an On-off control to allow the user to turn the regulator on and off when needed. The On-off control can be used to limit the power consumption even further, as the regulator can be kept turned off when not in use.

The REG103FA-2.5KTTT can provide an output current of up to 500 mA, and is able to provide very low noise. It is designed to ensure a tight regulation of the output voltage and current, while providing a high level of protection against spikes, transients and other factors that can affect the output performance.

In summary, the REG103FA-2.5KTTT LDO linear voltage regulator is a versatile and reliable solution for powering both digital and analog circuits in many applications. It is capable of providing precisely regulated output voltage, low noise, and low power consumption, while offering high input voltage range and high switching frequency.

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