TPS7301QDG4

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The TPS7301QDG4 is a voltage regulator specifically designed for 3.3V low voltage power supply applications. It is part of the popular TPS7300 series of linear regulators from TI, offering high performance and low power consumption. The TPS7301QDG4 is ideal for many 3.3V applications that require low noise and low quiescent current, such as laptop and notebook computers, portable electronics, digital media players, mobile phones and PDAs, and other battery-powered systems.

The TPS7301QDG4 is a step-down voltage regulator which allows voltage conversion from an input voltage of up to 8.0V to an adjustable 3.3V output voltage with a guaranteed accuracy of 1.5%. It is capable of delivering up to 500mA of output current, with a maximum dropout voltage of 350mV. This device features an enable/shutdown pin, external shutdown logic levels, an integrated over-temperature protection circuit, and over-current protection, making it suitable for a wide range of applications.

The TPS7301QDG4 features an ultra-low power consumption of just 0.3µA in low power mode. It has an integrated output voltage tracking circuit which ensures accurate output voltage even when the input voltage is varying. This makes the device well suited for applications requiring high efficiency and fast response. The device also has a high accuracy, low noise, and a wide dynamic range, making it ideal for use in handheld and digital audio applications.

The TPS7301QDG4 comes in a 16 pin 8-lead MSOP package and is very easy to use, making it well suited for space constrained applications. The device operates over the commercial temperature range of -40°C to +85°C. The device is available in four different grades, offering different levels of accuracy and power supply noise. The TPS7301QDG4 is an excellent choice for many 3.3V low voltage power supply applications requiring high efficiency, low power consumption and excellent performance.

The principle of operation of the TPS7301QDG4 is simple. It consists of an adjustable voltage reference, an error amplifier, a voltage divider, a transistor, a current source, and a comparator. The voltage reference sets the output voltage to the desired level. The error amplifier receives the output voltage and compares it to the reference voltage and adjusts the feedback circuit accordingly. The current source supplies the base drive to the internal transistor, allowing the output voltage to be maintained at the desired level. The comparator compares the output voltages to the reference voltage and will shut down the regulator in the event of a fault condition such as an overvoltage or overtemperature condition.

In conclusion, the TPS7301QDG4 is a great choice for many 3.3V low voltage power supply applications requiring high efficiency, low power consumption and excellent performance. It is easy to use, comes with built-in safety features, and is available in different grades for different levels of accuracy and power supply noise. The device is ideal for use in devices such as laptops and notebooks, portable electronics, digital media players, mobile phones, PDAs, and other battery-powered systems.

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