S-8353H50MC-IXJT2U

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The S-8353H50MC-IXJT2U is a DC/DC switching regulator that can be used for wide range of applications. It is designed for a high-efficiency power supply system, providing excellent output stability and fast dynamic response. The device is suitable for a variety of applications, including data communication, industrial control, automotive, consumer, and lighting.

The device is a monolithic, voltage regulator integrated circuit, combining a power transistor and a feedback loop to regulate a DC output voltage with a high level of accuracy. A built-in start-up circuit provides a minimal input power to enable protection and the device is also protected against output overvoltage. The device can be used as an adjustable voltage source, providing a variable output voltage range of 0.7 V to 3.6 V.

The S-8353H50MC-IXJT2U features a high switching frequency of 500 kHz, allowing for compact, lightweight designs. It has a wide input voltage range from 4.5 V to 28 V and is capable of driving a load current of up to 3 A. The device is also equipped with a programmable soft-start feature, to prevent inrush current when starting up the system. The device includes an enable control input, so the output can be controlled to enable or disable it.

The switching regulator works on a principle involving two switching elements. The input voltage is switched on and off periodically in a specific frequency to produce the required output voltage. The switching elements are driven by an oscillator circuit, which is usually based on an external resistor and capacitor. The output voltage is regulated by varying the duty cycle of the switching element, by controlling the current of the oscillator.

When the load is low, the device operates in a low-power, pulse-frequency modulation (PFM) mode. The device monitors the output voltage to continuously correct itself if the output voltage deviates from its predetermined value. As the load increases, the device automatically switches to the pulse-width modulation (PWM) mode to maintain a constant output voltage. It also features a frequency foldback feature that reduces the internal operating frequency when under heavy load.

The S-8353H50MC-IXJT2U is an ideal solution for applications requiring a high-efficiency, low-cost power supply system. It offers excellent output stability, fast dynamic response, wide input voltage range, and a programmable soft-start feature. This device also offers a low-power mode as well as a frequency foldback feature to reduce internal power consumption under heavy load.

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