LTC3809IMSE-1#TRPBF

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The LTC3809IMSE-1#TRPBF is a DC to DC synchronous buck switching controller designed for use in power supply systems. It is part of Linear Technologies’ field-proven Intersil family, which is designed to reduce design headaches and minimize external components in small form-factor devices. The device features high peak current mode control and can be configured in a variety of topologies, providing flexibility and improved efficiency. The LTC3809IMSE-1#TRPBF can operate from an input voltage of 2.25V to 5.5V and provides an output voltage range of up to 1.2V.

The LTC3809IMSE-1#TRPBF is well suited for both synchronous and diode-ORed applications that require tight regulation of output voltage and high efficiency along with low output voltage ripple. It is also well-suited for use in applications with limited power supply voltage rails, such as automotive and battery-operated devices. The device includes a wide selection of internal choices to reduce external component count and simplify the interface to other digital components.

The LTC3809IMSE-1#TRPBF provides a variety of features to enable efficient, reliable operation. It has cycle-by-cycle current limit, over-temperature protection, fixed frequency operation to reduce switching noise, low shutdown quiescent current and low start-up current. The device also features adaptive dead time that adjusts the dead time to eliminate shoot-through, an internal oscillator for easy synchronization, and bi-directional synchronous rectification.

The LTC3809IMSE-1#TRPBF is designed to reduce design complexity and maximize efficient power conversion with its integrated high-performance features and comprehensive protection options. The device makes use of an advanced peak current mode control that delivers tight regulation over a wide range of input voltage and output load conditions, while providing very low noise and excellent response time to transients. The internal oscillator and adaptive dead time provide flexibility in synchronously rectifying applications. Furthermore, the device supports both step-down and step-up topologies, allowing it to be configured to fit a wide range of voltage, current and power requirements. Lastly, the device includes a variety of protection features that include overtemperature protection, undervoltage lockout, built-in over-current protection and adjustable current limit.

In conclusion, the LTC3809IMSE-1#TRPBF is a valuable DC to DC synchronous buck switching controller designed for use in a wide range of power supply applications. It is part of Linear Technologies’ field-proven Intersil family and features high peak current mode control, wide input voltage range, low external component count, wide frequency range, and a variety of protection features. This makes it ideal for automotive and battery-operated devices and many other applications that require high efficiency and low output voltage ripple.

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