LM123K

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LM123K is one of the seven voltage regulators in the Linear PMIC family offered by Texas Instruments. It is a low-dropout (LDO) regulator with several features that make it ideal for a range of applications. Some of these features include low noise, low quiescent current, and a maximum output current of 2A. In addition, it also has an integrated protection circuit which prevents it from being over-driven.

The LM123K is primarily employed as a low-dropout (LDO) voltage regulator, meaning that it helps stabilize the voltage levels for an electrically powered device. It does this by providing a direct-current (DC) voltage source between its two main terminals - the input, and the output. The input can be as high or low as 5 V and 36V, while the maximum output voltage is limited to 4.5 V. The LM123K operates by converting a higher input voltage to a desired output voltage, and the circuitry inside the device helps maintain a constant output voltage despite any fluctuations in the input voltage.

The LM123K incorporates a number of features that make it suitable for many different applications. Firstly, it uses a cycle-by-cycle current-limiting feature that takes into account any surges or drops in the input/output current. This protects the LDO from any damage due to sudden changes in current flow. Next, it has a low-noise operation, which is ideal for applications that require high precision and accuracy. Lastly, it has an integrated thermal protection circuit, which helps keep the device from overheating.

The LM123K LDO is the perfect solution for a wide range of microcontroller and embedded applications, including motor control systems, telecommunications equipment, and industrial automation. Its ability to maintain a constant output voltage helps ensure that all components of the system remain at the correct working voltage. This is especially useful in mobile and handheld applications, where fluctuations in the input voltage occur frequently.

Overall, the LM123K is an excellent choice for microcontroller power systems and embedded applications that require a robust and reliable low-dropout regulator. It offers many useful features, including low noise operation and an integrated protection circuit, that make it an attractive option for many different applications. With its wide input voltage range and current-limiting protection, it is the ideal regulator for any design that needs a reliable and efficient power solution.

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