SC618ULTRT Integrated Circuits (ICs)

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The SC618ULTRT is a high-performance, high-efficiency regulator used for LED lighting applications. Its key features include wide input voltage range, low noise, fast start-up time and low power consumption. It also has built-in protection features such as current limiting, overtemperature protection, input undervoltage lockout, output overvoltage protection, and overload protection. It is designed to deliver stable and efficient lighting with constant current output over a wide range of LED load.

The SC618ULTRT consists of a switching LED regulator and MOSFET power stage. It uses a standard buck topology to step down the input voltage and then boosts the output with a synchronous MOSFET power stage. This power stage includes a low on-resistance synchronous MOSFET with a tight tolerance on the gate-source voltage. This ensures high power efficiency and low power loss. It also has a built-in peak current limiter, overvoltage protection, and short circuit protection to protect the LED terminal. It comes in an 8-pin SOIC package.

The SC618ULTRT is suitable for use in LED lighting applications, such as LED strips, wall washers, LED signs, outdoor lighting and others. It can be used in both constant current and constant voltage applications. The current limiting protection and wide input voltage range make it suitable for use in high-temperature applications, such as in lighting fixtures.

The SC618ULTRT has wide input voltage range from 3.2V to 50V and can provide up to 1.5A of output current. Its switching frequency has range from 200kHz to 2MHz and its built-in current limiting is adjustable from 0.25A to 1A. It also includes over-temperature protection, input undervoltage lockout, and output overvoltage protection. The output ripple can be kept low thanks to the synchronous MOSFET power stage and its internal compensation. The voltage feedback loop also helps to keep the output voltage stable, even if the input voltage varies.

The SC618ULTRT is capable of delivering efficient and stable lighting for a wide range of LED loads. It is easy to configure and requires no external components, making it ideal for lighting applications. Its wide input voltage range and current limiting protection make it suitable for use in high-temperature apps, such as LED strips, wall washers, and outdoor lighting. Additionally, its built-in over-temperature protection, input undervoltage lockout, and output overvoltage protection provide unbeatable reliability and safety.

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