LTC3728LXCUH#TRPBF

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The LTC3728LXCUH#TRPBF is a versatile single-phase synchronous step-down DC/DC controller designed to power an x86 or processor-core microprocessor and Actel. It can also be used to power mini-slot or piggyback power supplies, microprocessor systems, server processors, remote telecom systems, and wireless base station programs.

The LTC3728LXCUH#TRPBF is ideal for design engineers targeting processor-core power applications, providing voltage rails in the range of 0.6V to 0.9V with current capability up to 40A. The integrated power device capabilities of the LTC3728LXCUH#TRPBF allow the design engineer to select devices suitable for the specific application or use standard devices.

The working principle of the LTC3728LXCUH#TRPBF is based on an adaptive on-time control architecture. It uses a voltage-mode switching controller and integrates a number of power devices to provide the switching elements of an output current regulator. The controller operates in a fixed frequency mode with an adjustable programmable frequency range of up to 600kHz.

The LTC3728LXCUH#TRPBF uses synchronous rectification to increase efficiency, helping to reduce ripple and noise, and to maintain power integrity. It also features a current limit detector which enables the use of external MOSFETs that can shutoff the output transistor when an overload is detected.

The LTC3728LXCUH#TRPBF is optimized for use with Actel Field Programmable Gate Arrays (FPGAs), and will provide designers with a complete solution for processor-core voltage regulation. The LTC3728LXCUH#TRPBF also offers robust protection features such as over-voltage, over-current, over-temperature, and under-voltage lockout. Additionally, it has a 3-pin voltage-select pin (VCCSC) which allows the output voltage to be adjusted anywhere within the specified range.

In conclusion, the LTC3728LXCUH#TRPBF is a versatile single-phase synchronous step-down DC/DC controller designed to power an x86 or processor-core microprocessor and Actel FPGAs, providing voltage rails ranging from 0.6V to 0.9V with current capability up to 40A. The adaptive on-time control architecture, integrated power device capabilities, and Synchronous Rectification provide high efficiency, low noise and ripple, and robust protection features. It is a comprehensive power solution for processor-core voltage regulation.

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