SC120SKTRT Integrated Circuits (ICs)

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The SC120SKTRT is a regulated direct-current/direct-current (DC-DC) switching regulator designed for use in a wide range of switching applications. This device integrates a low quiescent current regulator (LQCR) topology that provides excellent efficiency, small size, and low noise, while providing accurate voltage regulation over line, load, and temperature variations. Additionally, this regulator can operate in pulse-skipping mode, allowing the user to take full advantage of the switching-regulator’s efficiency enhancements.

The SC120SKTRT is a 3-terminal voltage regulator featuring dual outputs, with output voltages of 1.25V and 1.8V. Additionally, it features a robust tracking and soft-start option to ensure accurate startup without load transients. It also lets the user configure the output current limit, allowing the regulator to function safely at higher currents. The SC120SKTRT also offers an adjustable current-limit option for added protection and flexibility. Furthermore, this device also supports an under-voltage lockout option, allowing the user to adjust the minimum output voltage.

The SC120SKTRT operates on a wide input voltage range from 4.7V to 20V. It is designed to be used in a variety of applications, including automotive, industrial, medical, and portable devices. It offers excellent power-conversion efficiency reaching up to 97.2%. Additionally, this switching regulator provides accurate voltage regulation over line and load conditions, as well as temperature variations.

The working principle of the SC120SKTRT is based on a low quiescent current regulator (LQCR) topology. This switch-regulated regulator uses a fixed-frequency PWM control to regulate the output voltage. The LQCR topology provides excellent efficiency, low noise, and small size while providing accurate voltage regulation over line, load, and temperature variations. The switching action is controlled by a voltage-mode controller, using current-mode control circuitry.

To further enhance the performance of the device, the SC120SKTRT is equipped with additional features, such as pulse-skipping mode, adjustable current-limit, and adjustable soft-start options. Pulse-skipping mode allows the user to take full advantage of the switching-regulator’s efficiency enhancements. The adjustable current-limit feature allows the user to configure the output current limit, ensuring safe operation at higher currents. Lastly, the adjustable soft-start option allows for smoother transitions when operating in heavy-load conditions.

In conclusion, the SC120SKTRT is a 3-terminal voltage regulator featuring dual outputs, with output voltages of 1.25V and 1.8V. It is designed for use in a wide range of applications, including automotive, industrial, medical, and portable devices. This device integrates a low quiescent current regulator (LQCR) topology that provides excellent efficiency, small size, and low noise, while providing accurate voltage regulation over line, load, and temperature variations. Furthermore, it supports pulse-skipping mode, adjustable current-limit and adjustable soft-start options.

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