LT4320IN8#PBF

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The LT4320IN8#PBF is an integrated circuit device designed to provide a wide range of power management and control functions in a variety of applications. It is a member of Linear Technology\'s PowerPath™ family of integrated power management controllers, and it can be used to deliver maximum power transfer in a wide variety of industrial, civilian, and military power systems. The LT4320IN8#PBF is ideal for applications that require extremely efficient current regulation and/or power selection. It is particularly suitable for higher-power applications that require low noise and high reliability.

Brief Overview of Features

The LT4320IN8#PBF offers an array of features and functions, including:

• A high-efficiency, low-noise current regulator
• PowerPath™ optimized power selection
• Programmable input current limit
• Temperature-compensated current regulation
• Input voltage UV/OV protection
• Output voltage regulation/tracking
• Power Good indication
• Easy-to-use, pin-selectable feature set

Application Fields

The LT4320IN8#PBF is designed for applications that require reliable, high-efficiency current regulation and/or power selection. Typical applications include:

• High-power step-up and step-down dc-dc converters
• High-current power supply design
• Battery charger and backup systems
• DC power-line regulation
• Uninterruptible Power Supplies (UPS)
• DC-DC power controllers
• Synchronous Rectifier (SR) applications
• Industrial and military systems

Working Principle

The LT4320IN8#PBF is a high-efficiency, low-ripple current regulator, designed to provide precise current regulation with fast transient response. The LT4320IN8#PBF also incorporatesprogrammable input current limit, temperature compensation, and PowerGood indication, to provide safe and reliable power delivery. The device operates by sensing the voltage drop across a current sense resistor, using this voltage to compute a precise current value and regulate the output to maintain the requested current. The regulator has a reference accuracy of ±2.0% and a typical transient response of less than 100μs, making it suitable for a wide variety of industrial, civilian, and military power systems.The device also incorporates PowerPath™ optimized power selection, which provides increased efficiency and better transient performance than traditional OR controllers. PowerPath™ is a feature set, which allows for user-configurable parameters such as current limit, input voltage UV/OV protection, and output voltage tracking.The LT4320IN8#PBF is ideal for use in applications that require precise current regulation and/or power selection. In addition, the device is highly tolerant of input voltage variations and environmental conditions, making it suitable for use in harsh and extreme environments.

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