SC419ULTRT

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SC419ULTRT is a DC-DC switching regulator control integrated circuit designed for the conversion of battery, AC adapter, and USB power into adjustable regulated output voltages. It is specifically designed to provide a low-cost and highly efficient system solution for phone chargers and other DC-DC applications requiring sequential power transfer. This device is capable of delivering up to 3A of continuous load current and can be used to supply voltage ranges from 3.3V to 48V. The SC419ULTRT features an internal switching MOSFET, integrated gate drive, current limit protection, and input under-voltage protection.

The SC419ULTRT takes input from batteries, AC adapters, or USB ports and converts it into a stable, regulated output voltage. Its integrated control features and fully programmable setup parameters provide high efficiency, accurate output voltages, and minimal footprint. This device is designed to operate with up to 50V input voltage and can generate outputs of up to 48V. It is ideal for providing power to a wide range of devices including phones, digital cameras, audio devices, and other portable electronics.

The device is optimized for high-efficiency step-down conversion with a switching frequency of 500 kHz. The low ESR internal MOSFET can provide up to 3A of continuous current, and is designed to be current-limited in order to protect itself and other devices in the circuit. This device also offers excellent line and load regulation as well as fast dynamic response to load transients. The SC419ULTRT features an adjustable soft start for current ramp-up, as well as adjustable over-voltage and over-temperature protection.

The SC419ULTRT is configured using an I2C compatible interface and the supplied setup software. It is well-suited for applications requiring adjustable power supplies with tight controls on accuracy, efficiency and size. This device is available in a 6-pin TSOT-23 package, including pins for ground, Vcc, and the I2C interface. Other features include input voltage tracking, output voltage trimming, and shutdown control.

In conclusion, the SC419ULTRT DC-DC switching regulator control integrated circuit provides a compact, low-cost and highly efficient solution for a variety of power conversion applications. It is suitable for use with batteries, AC adapters, and USB ports and its integrated features offer excellent line and load regulation and fast dynamic response to load transients. The device is configurable via the I2C compatible interface and the supplied setup software, and is capable of delivering up to 3A of continuous load current with adjustable output voltages from 3.3V to 48V.

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