SPX1587U-L-3-3

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The SPX1587U-L-3-3 is a low drop-out (LDO) linear voltage regulator designed for use in power management systems. It uses an advanced circuit topology that provides highly efficient voltage regulation over a wide range of input voltages, operating currents, and output voltages. The device includes an adjustable current limit, low output voltage ripple and low quiescent current. The SPX1587U-L-3-3 is an optimized solution for applications requiring an adjustable wide input and output voltage range, with low noise, low ripple and high efficiency.

The SPX1587U-L-3-3 is an ideal device for many applications such as automotive, digital cameras and other consumer electronics. It is also suitable for use in other industrial and commercial applications such as direct current (DC) power supplies and isolated power conversion designs. It has a wide input voltage range from 2.5 to 40 volts and an adjustable output voltage ranging from 1.25 to 17 volts, with a maximum load voltage of 30 volts. The wide input voltage range allows for flexibility when designing for different input power sources. Additionally, the device is capable of providing up to 90% efficiency, providing the highest possible efficiency for a given operating voltage and current.

The working principle of the SPX1587U-L-3-3 lies in its use of a precise voltage loop. The voltage loop consists of a voltage reference, error amplifier, comparator and driver circuitry, which together provide precise output regulation. The adjustable current limit allows the SPX1587U-L-3-3 to limit the peak current delivered to the output, thus ensuring the breakdown voltage (VBR) of the device is not exceeded while providing power to the load. The low quiescent current, low output voltage ripple and low operating temperature of the device further contributes to its efficiency and reliability.

The SPX1587U-L-3-3 provides excellent performance and reliability in applications requiring wide input and output voltage ranges and high efficiency. The device is well suited for automotive, consumer and industrial applications where efficient, low noise regulation of the output voltage is needed. Its wide input voltage range and adjustable output voltage make it an ideal solution for a variety of power management applications.

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