TPS79425DGNTG4

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Introduction

The TPS79425DGNTG4 Linear Voltage Regulator from Texas Instruments is a high-performance, low-power linear regulator device intended for a variety of applications related to power supplies. Its primary features include a guaranteed output voltage of 4.25V, a maximum output current of 200mA, a switching frequency of 2.2MHz, and a typical dropout voltage of 0.4V. Moreover, it offers reverse battery protection, undervoltage lock-out, thermal protection, and fault output protection.

Application Fields

The TPS79425DGNTG4 linear voltage regulator is a great choice for powering precision digital components, including microcontrollers, digital signal processors, and programmable logic devices. It is also suitable for applications that require precise voltage regulation, such as battery charge controllers and energy meters. Additionally, the TPS79425DGNTG4 can be used as a start-up regulator for devices that require consistent and low power, including medical devices and consumer electronics.

Working Principle

The TPS79425DGNTG4 operates by converting an input voltage into a regulated and precise output voltage. The input voltage is adjusted to the required level by an error amplifier, and the output is regulated by two P-Channel enhancement metal oxide semiconductor field effect transistors (MOSFETs). As the load on the device changes with respect to the required output voltage, the MOSFETs adjust the input voltage until the desired output voltage is achieved. Additionally, the TPS79425DGNTG4 enables low quiescent current operation, so the device can be programmed to regulate power in an efficient manner.

Conclusion

In conclusion, the TPS79425DGNTG4 is a versatile and reliable linear voltage regulator. It provides a guaranteed output voltage of 4.25V, a maximum output current of 200mA, and a switching frequency of 2.2MHz. Moreover, it features several protection mechanisms, including reverse battery protection, undervoltage lock-out, thermal protection, and fault output protection. As such, it is an ideal choice for powering digital components, battery charge controllers, energy meters, and other devices that require precise voltage regulation.

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