IFX4949SJXUMA1

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The IFX4949SJXUMA1 is a linear low-dropout (LDO) voltage regulator from Infineon Technologies. This type of voltage regulator is designed to accurately regulate and produce the constant, stable output voltage that is required by many applications, regardless of the input voltage load variations. This regulator has a low quiescent current and can be used in a variety of applications, such as portable devices, automotive, and other power management applications.

The IFX4949SJXUMA1 is a 3.3V/300mA low dropout regulator with a wide input voltage range from 6V to 12V and an output voltage accuracy of ±2.5%. It features a low quiescent current of only 200μA, enabling higher efficiency operation. The device is protected against current limit, short-circuit, thermal shutdown, and undervoltage lockout, ensuring superior protection against fault or overload conditions.

The working principle of the IFX4949SJXUMA1 is based on the linear or series voltage regulator. This type of regulator works on the same principle as a simple resistive voltage divider. In this type of regulator, one end of the resistor is connected to the input voltage and the other end is connected to ground. The output voltage is then derived by adjusting the value of the resistor. This adjustment is done through the use of a control signal, which is generated by an internal circuit. This control signal is fed to the output of the regulator, which then adjusts the resistance of the resistor to maintain a constant output voltage regardless of variations in the input voltage.

The IFX4949SJXUMA1 is well suited for applications such as computer motherboards, portable electronic devices, communications systems, and industrial applications. It can be used to convert higher voltage inputs such as 12V down to 3V, to meet the requirements of various types of low-voltage devices or circuits. The low quiescent current, accurate output voltage control, and additional protectio make it an ideal choice for these types of applications.

The IFX4949SJXUMA1 is a versatile power management solution that can be used in a variety of applications. Its low quiescent current and effective voltage regulation make it an invaluable tool for maintaining optimal power in portable or automotive applications. This device is an ideal choice for designers who need fast and reliable power conditioning solutions.

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