LT8311MPFE#PBF

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The LT8311MPFE#PBF is a highly efficient, low quiescent current synchronous boost dc/dc converter with integrated MOSFET drivers for portable applications. The device is offered in the Pb-Free 14-Lead Plastic DFN (6mm × 6mm × 0.75mm) package. It uses a constant switching frequency current mode architecture to provide accuracy and excellent line and load transient response. The part is optimized for applications from 1.8V to 5.5V input and 3.3V to 5.5V output. The device also includes input and output power supply monitors with programmable thresholds for application protection. The internal registers can be programmed using an external I²C interface. All features of the device are precisely programmed via a single 2-wire compatible serial interface.

The LT8311MPFE#PBF is categorized as a Power Supply Controllers, Monitors (PMIC). The device can be used in industrial or automotive applications, ranging from battery-less microcontrollers to current limited LEDs. The device supports up to a 3A load with a 48V supply or up to a 6A load with a 24V supply. In addition, the PMIC can be used in applications such as WiFi and Bluetooth radios, motor control, automotive, and portable devices.

The LT8311MPFE#PBF is an efficient power supply controller. The integrated MOSFET drivers allow the device to control power supply switches directly. The device operates from an adjustable 0.9V to 1.2V nominal voltage supply. The voltage is set to 1.2V through the I²C interface. The I²C interface also provides programming of the adjustable output voltage. The device also includes programmable input and output supply monitors for application protection.

The LT8311MPFE#PBF features a current mode control that can handle line and load transients very nicely. The device operates with a constant switching frequency of 1MHz. The switching frequency can be adjusted through the I²C interface. The device also incorporates a low quiescent current hybrid ceramic resonator to improve noise immunity.

The device has an integrated adaptive input current limit loop which helps to reduce power dissipation in the MOSFET switch. The output voltage can be trimmed with a 0.5% accuracy over temperature. The integrated transformer reduces the size, enhances efficiency, and reduces costs as compared to discrete solutions. The device also enables low ripple and low noise operation while maintaining high efficiency.

The LT8311MPFE#PBF is a high efficiency, low quiescent current synchronous boost DC/DC converter which incorporates MOSFET drivers for portable applications. The device includes integrated power supply monitors and adjustable output voltage. The device features a current mode control with a constant switching frequency of 1MHz and adaptive input current limit loop for reduced switch power dissipation. The device is optimized for applications from 1.8V to 5.5V input and 3.3V to 5.5V output and can operate as a switch mode power supply controller for industrial or automotive applications.

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