TLE4274G V50

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PMIC, otherwise known as Power Management Integrated Circuit, regulates power within electronic devices, playing a crucial role in maintaining a stable and efficient power supply. Voltage Regulators, one type of PMIC, are used to maintain and regulate the output voltage of a power supply. Linear regulators, in particular, are a type of voltage regulator with a desirable efficiency that governs voltage levels while maintaining a low power dissipation. The TLE4274G V50 is a PMIC that belongs to this family of voltage regulators, and this article will focus on understanding its application field and working principle.

Application Field

The TLE4274G V50 is a low-power voltage regulator with robustness over a large temperature range, making it suitable for use in various scenarios. It is suitable for systems requiring a small number of voltage rails of high accuracy and tight regulation. Since it has low-noise performance and a low output current capability, it is particularly well-suited for using in intelligent mobile phones. With its low supply current, reverse battery protection, and thermal shutdown capability, this voltage regulator is well-suited for automotive and industrial applications, allowing the device the promise of a long lifetime.

Working Principle

The TLE4274G V50 implements the error amplifier and current mirror circuits with a dedicated internal relay. This type of voltage regulator is mainly used as a current limiter and has a good protection and control system. The accuracy of the output voltage can be adjusted by external resistors. And the adjustment of output voltage is linear.

This voltage regulator contains a MOSFET switch and a PTC resistor, which is connected to the output voltage. If the output voltage is higher than the rated value, the MOSFET will be activated and the PTC resistor will be used to reduce the amount of current, thus engineering a clamp protecting both the regulator and the load device from overvoltage.

The internal protection circuits in TLE4274G V50 monitor the output voltage, and if it exceeds the rated value, they will reduce the current limiting resistance automatically, thus preventing overvoltage and maintaining a stable output voltage. Also, this voltage regulator has reverse battery protection, ensuring correct supply power to prevent any damage.

Conclusion

The TLE4274G V50 is a linear voltage regulator belonging to the PMIC family. Its application field spans various segments, such as automotive, industrial, and intelligent mobile phones. It has an excellent power dissipation and low noise performance that make it well-suited for use in a variety of applications. Additionally, this voltage regulator has several important protective functions, such as reverse battery protection and overvoltage protection. Overall, the TLE4274G V50 is a powerful and reliable voltage regulator.

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