LM5175PWPR

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The LM5175PWPR voltage regulator is a type of dc-to-dc switching controller produced by Texas Instruments. It is used to control the output voltage of power supply solutions and supports a wide range of input and output voltages. The device is capable of synchronizing its frequency with either an external clock or the internal oscillator. It can be used in applications such as low-side switches, input voltage regulation, step-up and step-down converters and foldback converters.

The LM5175PWPR is designed to improve the efficiency of power supplies by significantly reducing switching losses. It features a synchronous rectifier for efficient operation, high-side and low-side protection circuitry to reduce current inrush during start-up, and a high-side pre-driver for fast switching. The device also incorporates a line under-voltage and over-voltage protection system, as well as an over-current and short-circuit protection for both the input and the output.

The device is capable of up to 97% efficiency when used in step-down and step-up converter applications, and up to 98% efficiency in foldback converters. It has a wide operating temperature range, from -40°C to +85°C, and a low quiescent current, making it suitable for both high-end and low-power applications. The LM5175PWPR is available in a compact, thermally-enhanced, 16-lead thermally enhanced PowerPAD TSSOP package.

The LM5175PWPR switching controller has two main operating modes: cyclic mode and pulse skipping mode. In cyclic mode, the device turns on and off rapidly, allowing it to regulate an output voltage when faced with an input voltage that fluctuates. In pulse skipping mode, the output voltage is regulated by skipping pulses, with the device automatically adjusting its pulse width to maintain the output voltage.

The LM5175PWPR switching controller also features an adjustable soft-start function, which allows a gradual ramp-up of the output voltage. This ensures that the power supply always starts up smoothly, without any spikes or surges in the output voltage. The device also has a low-side gate driver which allows the user to control the switching frequency, enabling the use of advanced power management techniques such as dynamic voltage scaling.

The LM5175PWPR switching controller is designed to provide an efficient and easy-to-use solution for a wide range of power supply applications. With its low quiescent current, wide range of input and output voltages, and high efficiency, it is an ideal choice for applications where high power efficiency and board space are at a premium.

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