TPS7348QD

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The Texas Instruments TPS7348QD is a high-performance positive voltage regulator. This device is a great choice for modern mobile applications, offering improved power efficiency and ultra-low power consumption. It delivers a specified output voltage with tight line and load regulation and excellent output accuracy. The TPS7348QD has an adjustable output voltage range of 1.7V to 5.5V, and can provide up to 800mA of output current. The TPS7348QD is designed to be used in multiple applications, including memory core power supplies, DC-to-DC converters, and FPGA core power supplies.

One of the key features of the TPS7348QD is its low quiescent current. This device uses a low-power architecture that delivers 2.2 μA of quiescent current, providing excellent power savings for mobile devices. It also benefits from low noise performance, high output accuracy, and a fast transient response. This ensures clean and stable power delivery for both the system and the processor.

The TPS7348QD is a linear voltage regulator, meaning it linearly regulates the input voltage down to its output voltage. This is done using a series configuration of a voltage divider, consisting of two resistors connected in series, one of which is adjustable. When the input voltage exceeds the output voltage, current will flow through this configuration and the output voltage will be regulated.

The adjustable resistor in the TPS7348QD is known as the Feedback Resistor, and is used to set the output voltage. This is done by changing the ratio between the two resistors, allowing the output voltage to be adjusted by varying the resistance. The output voltage is adjusted by varying the resistance between the high-side input and the output terminal, which can be done with either a physical or software-controlled resistor.

The TPS7348QD also includes a shutdown pin, which can be used to put the device into low-power mode. This prevents the device from wasting power when not in use, further increasing efficiency and battery life. Additionally, it can be used as a power-save mode, allowing it to enter a low-power state when the system is not in use.

Overall, the Texas Instruments TPS7348QD is a highly efficient linear voltage regulator, offering excellent performance and low-power operation. It has a wide range of applications including memory core power supplies, DC-to-DC converters, and FPGA core power supplies. Its low quiescent current and fast transient response make it ideal for mobile applications, while its adjustable output voltage makes it an excellent choice for applications that require precision voltage regulation.

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