TPS76850QPWPRQ1

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Linear voltage regulators, when compared to switching voltage regulators, are commonly used because they are less expensive and more efficient. The Texas Instruments TPS76850QPWPRQ1 is a low power linear voltage regulator which has a wide range of applications and has become a go-to solution for many engineers due to its reliable performance. In this article, we will discuss the application fields and working principle of the TPS76850QPWPRQ1.

Application fields of the TPS76850QPWPRQ1

The TPS76850QPWPRQ1 is a low-power linear voltage regulator that offers up to 50 mA of output current, making it ideal for applications such as dynamic memory bias regulation, audio power supplies, and digital baseband supplies. It is also suitable for powering a wide range of microcontrollers, processors, and DSPs. Additionally, the device is designed to provide voltage accuracy as low as ±1.5% over temperature and load variations. This high accuracy makes it ideal for applications that require a clean power supply, such as medical and home electronics.

The device also offers a wide operating range. It can be used in systems with input voltages ranging from 2.7V to 17V and offers an adjustable output voltage of up to 1.8V. This wide input voltage range makes it suitable for a variety of applications, including automotive, industrial, and consumer applications.

The device also features an adjustable switching frequency which allows the user to choose between low, medium, and high frequency modes. This feature allows the device to be adjusted to meet the specific requirements of the application. Additionally, the device features an under-voltage lockout (UVLO) and thermal protection, which ensures that the device operates safely and reliably.

Working principle of the TPS76850QPWPRQ1

The TPS76850QPWPRQ1 is a linear voltage regulator, which means that it reduces the input voltage to the desired output voltage. This is accomplished by a process known as voltage sag compensation. This process involves allowing the input voltage to sag below the targeted voltage, and then adjusting the output voltage accordingly. This ensures the device maintains accuracy and stability regardless of the changes in the input voltage or load.

The device operates by comparing the output voltage and programming voltage. The programming voltage is provided by a resistor/capacitor (RC) network. If the output voltage falls below the programming voltage, the internal voltage regulator increases the gate voltage of the transistor, which in turn increases the output voltage. Conversely, if the output voltage is greater than the programming voltage, the gate voltage of the transistor is decreased, which decreases the output voltage.

The device also features adjustable switching frequency, which allows the user to choose the appropriate frequency for their application. Additionally, the device has an adjustable line compensation, which helps to reduce the output ripple and noise. These features, combined with its low power consumption of only 2.85 mW, make the device an ideal solution for a wide range of low-power applications.

Conclusion

In conclusion, the TPS76850QPWPRQ1 is a low power linear voltage regulator with a wide range of applications. The device has an adjustable output voltage, wide operating range, adjustable switching frequency, and line compensation to reduce output ripple and noise. The device also features under-voltage lockout (UVLO) and thermal protection, which ensures the device operates safely and reliably. Due to its reliable performance and wide range of features, the TPS76850QPWPRQ1 has become a go-to solution for many engineers.

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