SPX1117M3-L-5-0/TR

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SPX1117M3-L-5-0/TR (SPX1117) is a linear voltage regulator. It is a three-terminal positive voltage regulator and it can provide output voltage that is adjustable between +2.5V to +15V. It is an ideal voltage regulator for systems requiring multiple output voltages for different circuits. It is also a voltage regulator that provides a current-limited output with thermal overload protection.

This linear voltage regulator device is designed to be used in a variety of applications, such as medical equipment, industrial instruments, system power supplies, automotive, and telecommunications equipment. This voltage regulator can be used to provide a regulated output voltage for a fixed or adjustable input voltage range, circumventing the design complexity associated with a switch mode power supply.

The working principle of the SPX1117 is that the output voltage is set by two terminal adjustment, via a common cathode series resistor string. The output voltage is closely related to the ratio of the two series resistors, with reference to ground. The device includes an internal current limit and thermal overload protection. This protection provides an effective current limit, so that the device may be used with a wide variety of loads.

The power dissipation of the SPX1117 is low. It can operate on unregulated inputs up to 18V and feature low voltage dropout, making them ideal for pre-regulator use in power supplies. The linear dropout voltage rating is 1V typical at full output current. The output voltage is adjustable from 2.5V to 15V and is well regulated, with a load regulation of 0.2% (typical) for full output current.

The SPX1117 is a remarkably efficient device and its active consumption is very low (typically 100 μA or less). It also has low quiescent current capability and low dropout voltage so it can provide well-regulated output current with minimum power consumption. It also features fast transient response, with a typical turn-on time of 250 μs and a turn-off time of 15 μs.

In summary, the SPX1117 is a linear voltage regulator that provides output voltage that is adjustable between +2.5V to +15V. It is suitable for applications such as medical equipment, industrial instruments, system power supplies, automotive, and telecommunications equipment. It is also a voltage regulator that provides a current-limited output with thermal overload protection. The power dissipation of the SPX1117 is low, and its active consumption is very low, making it an efficient device. Its features include low voltage dropout, adjustable output voltage, and low quiescent current capability, allowing for well-regulated output with minimum power consumption.

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