LTC4269CDKD-2#TRPBF

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Power Over Ethernet (PoE) is becoming an increasingly important technology due to its flexibility and efficiency. PoE technology allows the data transmission of Ethernet signals over power lines, often eliminating the need to run additional cables. As the complexity and number of PoE applications continue to rise, more and more devices are being developed to better process and manage the technology. One such device is the LTC4269CDKD-2#TRPBF, a PMIC Power Over Ethernet (PoE) controller.

The LTC4269CDKD-2#TRPBF is designed to provide cost-effective and efficient management for PoE applications. It offers high-efficiency DC-DC conversion and linear regulation to meet the stringent requirements of the IEEE 802.3at specification. The device features a 6-bit Digital Potentiometer to program various output characteristics, such as output voltage level, output current limit, and current share for multiple port applications. Additionally, it integrates all the necessary protection functions such as loss-of-dc-input and under-voltage lockout.

The LTC4269CDKD-2#TRPBF operates in two modes. In the first mode, called the unregulated-input mode, the device operates as a 1-phase buck converter with a direct connection to the power line. In this mode, it regulates the output voltage to the target level and sets a limit to the maximum current level. In the second mode, called the regulated-input mode, the power is supplied to the device through an intermediate DC bus voltage. In this mode, the device operates as a buck-boost converter, providing a regulated voltage at the output while keeping the current level below the limit during the specified AC line cycle.

The LTC4269CDKD-2#TRPBF is suitable for deployments in a wide range of applications requiring Power Over Ethernet (PoE) capability, such as access points, surveillance cameras or VoIP phones. It provides an effective solution for managing and optimizing PoE power delivery and is easy to use. It also offers power system design flexibility, as it can be configured for either unregulated or regulated input modes. In addition, it has a low switching frequency, which minimizes power dissipation and reduces output capacitance requirements.

In summary, the LTC4269CDKD-2#TRPBF is an ideal solution for Power Over Ethernet (PoE) applications. Its high-efficiency DC-DC conversion and linear regulation allow it to provide a cost-effective and efficient way to manage and optimize power delivery for devices such as access points, surveillance cameras, and VoIP phones. It also offers great design flexibility, as it can be configured for either unregulated or regulated input modes for various applications. The device offers easy integration and a reliable performance in harsh environments, making it the perfect choice for all your Power Over Ethernet (PoE) needs.

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