LMS1585AIS-1.5

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LMS1585AIS-1.5 is a component belonging to the family of linear voltage regulators. It is used typically in applications requiring better capability of power output and is able to provide a medium to high current operating within an industry standard of 4.7V up to 30V of output voltage. It is available as an 8 pin DIP component or surface mount component and comes in a number of different packages. As part of a PMIC (Power Management Integrated Circuit) it offers a convenient solution for applications such as LED lighting, motor controls, printer motors and portable communication devices.

One of the most important characteristics of any PMIC is its ability to regulate and deliver reliable power. The LMS1585AIS-1.5 provides a range of features demonstrating this capability to meet the needs of a wide range of applications. The device has an adjustable maximum current setting of 500mA for reliable output, which can be set lower or higher in certain application conditions. Additional features include enhanced line regulation of 1.2% (2.5V–30V) in drop-out voltage, temperature stability and clean ripple rejection of 63dB.

The device contains an advanced on-chip control scheme that enables the use of a compact size as well as low quiescent current drain. In normal operation it requires a only a small quiescent current, 1.5 mA, allowing for minimum power consumption in a wide range of applications. The main components of the LMS1585AIS-1.5 are the voltage regulator, external output capacitor, and a reference control circuit.

The voltage regulator module is composed of several discrete components, such as an operational amplifier, a voltage reference and a power transistor. The operational amplifier acts as a comparator between the actual output voltage and the reference voltage. The output of the operational amplifier then controls the base voltage of the power transistor, which regulates the amount of current that is sent through the voltage regulator circuit. The external output capacitor acts as a filtering agent, minimizing ripple and oscillation of the output voltage.

The reference voltage is generated using an onboard voltage reference circuit that produces a stable reference voltage fed to the operational amplifier which adjusts the output voltage for various loads or changes in power line conditions. This makes the device extremely flexible when used in various environments.

The LMS1585AIS-1.5 is an ideal solution for a variety of applications where efficient and reliable power delivery is needed. Its adjustable current limit and high power output capability make it suitable for applications such as LED lighting systems and portable communication devices. Its low power dissipation and low quiescent current allow for reliable performance with reduced power consumption.

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