LM2591HVS-5.0

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The LM2591HVS-5.0 is a step-down monolithic switchmode voltage regulator. It is designed to convert input voltages of up to 36V DC into a fixed 5V output voltage with a maximum current rating of 2A. The LM2591HVS-5.0 is part of the LM2591 family of step-down switching regulators from Texas Instruments, which also includes the LM2591HVS-3.3, the LM2591HVS-4.0, the LM2591HVS-4.5, and the LM2591HVS-5.5. The LM2591HVS-5.0 is suitable for use in a wide range of industrial, automotive, and consumer applications, including handheld devices and DC-DC converters.

The LM2591HVS-5.0 combines a series of MOSFET switches and on-chip control logic, allowing the chip to operate in both the continuous conduction and discontinuous conduction modes. This switching regulator delivers high efficiency and improved line and load regulation. In addition, the LM2591HVS-5.0 features current limiting protection and thermal shut down.

The LM2591HVS-5.0 is a DC-DC switching regulator which can be used to step down an input voltage to a desired output voltage. In general, the LM2591HVS-5.0 is suitable for applications in which an input voltage is too high for the device that is being powered, or in applications where there is an input voltage with a very large range. It is also suitable for applications in which the output voltage is not easily adjustable and requires a fixed output voltage.

The LM2591HVS-5.0 operates as a constant current, fixed frequency, synchronous buck regulator and is capable of delivering up to 2A of current. The operating frequency of the device is typically set to 200KHz and can be adjusted using an external resistor. When powered up, this device will regulate the output voltage at 5V and will consume up to 2A of current.

The LM2591HVS-5.0 features both on-chip and external current limiting protection. The on-chip protection is provided through an internal MOSFET switch and the external protection is provided through a current sense resistor. If the current flow is greater than the specified current limit, the device will reduce the output voltage and limit the current flow. It also has thermal protection in the form of an internal thermal shutdown circuit. If the die temperature exceeds the maximum specified temperature, the device will shut down and disable the output until it cools down.

In addition to the various protection and output limiting features, the LM2591HVS-5.0 also provides efficient energy conversion. This device can provide up to 95% conversion efficiency, depending on the configuration and the load. This makes it well suited for applications in which high efficiency is desired.

The LM2591HVS-5.0 is suitable for a wide range of applications, including automotive, industrial, and consumer applications. In automotive applications, it can be used to provide battery regulation, load sharing, and low idle current. In industrial applications, it can be used in DC-DC converters, programmable constant current sources, battery chargers, and power supplies. In consumer applications, it can be used to provide a low voltage output in devices such as mobile phones and portable media players.

The LM2591HVS-5.0 is a versatile device that is well suited for a wide range of applications. Its features such as current limiting protection, thermal protection, and efficient energy conversion make it ideal for applications in automotive, industrial, and consumer applications. Furthermore, its flexible input voltage range, adjustable frequency, and high current rating make it suitable for a variety of voltage regulation and DC-DC conversion applications.

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