LTC3887EUJ#PBF

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The LTC3887EUJ#PBF is a poly-phase synchronous step-down DC/DC controller that provides excellent dynamic performance to automatically trade off load transient response, loop stability, and efficiency. With its superior integrated features, it is capable of delivering a higher level of power density, size and cost savings. The poly-phase operation provides noise and ripple filtering by spreading the load current over multiple channels, allowing higher current operation while limiting the voltage ripple to a fraction of the single phase output.

The LTC3887EUJ#PBF simplifies design work by its ability to automatically configure the current mode control, thus ensuring high accuracy and efficiency. The product embeds a complete high-side and low-side gate driver and MOSFETs along with integrated protection circuitry, making it suitable for overclocking applications. It also includes the ability to run in both synchronous and low noise mode. The LTC3887EUJ#PBF is backed by a 400kHz switching frequency which is adjustable, enabling the user to fine tune the efficiency or the output noise to the desired level.

The LTC3887EUJ#PBF is available in an 8-pin SOIC package and has been designed for applications such as gaming console, CPU voltage regulators, and other high current switch-mode power supplies. The output voltage range is from 0.6 to 10V, and the current capabilities range from 1A up to 35A. The PolyPhase capability is limited to 125A, allowing enormous power delivery with reduced ripple and noise. The device also supports over-voltage, over-current, and overtemperature protections to ensure reliable operation.

The LTC3887EUJ#PBF DC/DC controller performs a major role in the power source, it is basically the controller responsible for the switching of the transistors that generate the output power. This controller acts as the hinge between the input power and the output power, taking signals from the input to determine when to switch the transistors on and off, and what parameters to set them to. For instance, when an input voltage is higher than a set voltage, the controller will switch off the output voltage, reducing power consumption. When the input voltage returns to an acceptable value, the controller will then switch the transistors back on.

The LTC3887EUJ#PBF offers a number of key features that make it an ideal solution for various products and applications. The device offers a wide output voltage range and high current capabilities, making it suitable for use in applications requiring increased power and reliability. The device also supports over-voltage, over-current, and overtemperature protection to ensure safe and reliable operation in harsh operating environments. The integrated gate driver and MOSFETs and the adjustable 400kHz switching speed further simplify design work and enable users to fine tune the output ripple and noise for optimized performance.

The LTC3887EUJ#PBF is a highly versatile application-specific power management solution, particularly for applications that require high current, high efficiency and low ripple. Its robust features, combined with adjustable switching frequency and high efficiency, make it an excellent choice for a variety of applications, from gaming consoles and CPU voltage regulators to high current switch-mode power supplies.

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