RT5797BHGQW

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The RT5797BHGQW is a DC-DC switching regulator that is designed to provide a wide range of voltage and current outputs. The RT5797BHGQW is specifically designed to provide a regulated output without the need of a discrete pass transistor. The device offers excellent load transient response, low noise operation, and high efficiency performance.

Its wide input voltage range of 4.0V to 18V allows for operation from a single, battery or dual battery supply, meeting all of your varying port-powered and low battery operating requirements. It is a highly versatile voltage regulator which sets the stage for battery, port and AC outlet charging solutions. The high transient response provides improved flexibility in adapting to various loads and output power dissipation along with excellent thermal performance.

RT5797BHGQW can be used across a wide range of applications; from digital consumer applications to industrial, automotive and aerospace applications. It is well suited for driving DC-DC converters for high brightness LED lighting, automotive and industrial applications. The output voltage range of 0.6V to 17V makes it a suitable choice for powering large loads such as LCD, camera and RF power amplifiers.

The RT5797BHGQW regulator provides superior current mode control and excellent output voltage stability by using a stable PWM voltage feedback loop and wide input voltage range, making it suitable to power low and high power applications. An over current protection ensures total load current protection, ensuring the maximum output current or power remains safe and within limits, providing reliability and robustness.

The RT5797BHGQW also supports a low-noise operation by reducing the turn-on voltage losses and allowing for higher power efficiency. Additionally, the output voltage ripple is minimized, thanks to the buffered I/O pins with enhanced transient response.

The working principle of the RT5797BHGQW regulator is simple. When the input voltage is greater than the reference voltage, the pulse width modulation (PWM) circuit is triggered, which switches the transistor off and then on. The resistor divider then attempts to adjust the voltage across the transistor\'s base-emitter junction to the reference voltage, thus limiting the current and voltage across the transistor. This process is repeated until the input voltage is in line with the reference voltage.

Overall, the RT5797BHGQW is a highly versatile DC-DC switching regulator capable of providing power for a wide range of applications. Its wide input voltage range, superior current mode control and excellent output voltage stability make it well suited for powering high and low power loads, while its low noise operation and wide output voltage range makes it suitable for port-powered and low battery operation in consumer and industrial applications.

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