LTC1515IS8#PBF

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The LTC1515IS8#PBF, a high performance, integrated DC/DC switching regulator, is designed to deliver a small form factor power solution with maximum flexibility. This integrated solution features the latest Power Management Integrated Circuit (PMIC) and DC/DC technologies, offering reliable performance and protection. The main application field of the LTC1515IS8#PBF is in high power, point-of-load (POL) systems, where the increased efficiency, low noise, and small size are required.

The LTC1515IS8#PBF power solution integrates a power stage and an analog controller into a single integrated circuit. The power stage includes the circuits for high-side and low-side power MOSFET, temperature-proportional over temperature protection (OTP), adjustable current limit, adaptive gain, precision internal peak current limit sensing and more. The analog controller integrates a voltage regulator, current monitor, voltage feedback, soft-start, overcurrent protection, and a low-ripple, high-bandwidth, analog current-mode controller.

The LTC1515IS8#PBF DC-DC switching regulator is designed to expand the output power range available in a small form factor. It has an internal efficiency of up to 95%, and its low operating temperature is suitable for a variety of application scenarios. It features a wide input voltage range up to 36V, and an output voltage range of 0.3V-20V. It also supports a wide switching frequency range of up to 500kHz and a wide load current range up to 15A.

The working principle of the LTC1515IS8#PBF DC-DC switching regulator is based on the use of a power MOSFET and an analog controller to provide a high-performance, power conversion solution. The power MOSFET operates as a switch between the input and output of the device. When the switch is closed, current flows from the input to the output and the voltage across the MOSFET is regulated by the analog controller via an error amplifier, a current sense amplifier and a voltage feedback loop.

This error amplifier and current sense amplifier measure the voltage and current across the MOSFET, respectively, and feed the information back to the analog controller as a control signal. The analog controller then adjusts the on-time of the power MOSFET switch (the on-time is the time that the switch is closed) to regulate the output voltage of the device.

In addition to providing efficient power conversion, the LTC1515IS8#PBF DC-DC switching regulator also incorporates protection features such as thermal shutdown, over temperature protection and over voltage protection. The device also features an adjustable switching frequency, allowing designers to optimize the device for their specific application. With its integrated design and wide operating range, the LTC1515IS8#PBF DC-DC switching regulator is an ideal solution for high power point-of-load applications.

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