LM2775DSGT

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The LM2775DSGT is a buck regulator from Texas Instruments, belonging to the Power Management IC (PMIC) family. It belongs to the Voltage Regulators category and specifically to the DC DC Switching Regulators group. It is designed to provide up to 3 A of continuous output current with excellent line and load regulation. It is suitable for a wide range of applications, including automotive, computing, consumer, healthcare, industrial and lighting.

The LM2775-DSGT regulator contains all the necessary components including a low ripple, low noise current mode control circuit, high side and low side power MOSFETs, undervoltage lockout, frequency compensation, and output voltage sensing. The device is available in a variety of packages and boasts high efficiency, fast transient response, and easy monitoring. The LM2775-DSGT offers programmable switching frequency, enable, and enable/disable pulse width modulation (PWM) to allow for a flexible, cost-effective solution for the application.

The LM2775DSGT regulator typically operates from an input voltage range of 4.5V to 16V and provides a regulated output voltage of up to 5V. It is suitable for applications such as power supplies for CPUs, FPGAs, DSPs, and MCUs, as well as for classic PCs, tablets, battery powered devices, and more.

The operation of the regulator is based on a current mode control, which is a type of constant-frequency control that achieves superior transient performance with a simple compensation network. The internal circuitry senses the output voltage of the regulator, and the voltage is adjusted through current sensing. This sensing method is extremely reliable and provides a high degree of accuracy in the output voltage, providing stability and reliability.

The LM2775DSGT incorporates a low-side MOSFET and a high-side MOSFET in a single package. It provides protection features to protect the device and the system from overcurrent and overvoltage. There is also the option of adding an external MOSFET for increased power delivery and higher efficiency. The regulator also includes an undervoltage lockout (UVLO) feature that prevents oscillation when the input voltage drops below a certain level.

The LM2775DSGT is a highly stable, cost-effective device that offers a solution for many of today’s power conversion needs. With its compact package, high efficiency, low noise, and quick response time, it is an ideal regulator for a range of applications from consumer to industrial. Its many protection features and accuracy make it a reliable solution that can be used in many different systems.

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