NCV8800HDW75

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NCV8800HDW75 is an high efficiency step-up DC/DC switching regulator with low multi-mode current consumption, high output power, and low dropout operation. This device has been designed to build small and efficient system while providing ultra-low voltage ripple and high output performance. Being highly efficient and accurate, theNCV8800HDW75 is ideal for applications such as low voltage and Mainframe servers, VRM and set top box that require low power consumption, high current output and accurate voltage regulation.

Application Field

The NCV8800HDW75 is especially suitable for digital systems powered by low voltage sources such as servers, mainframes, mobile phones, industrial and household electronics and others. The device provides flexibility of being used as a stand-alone DC/DC converter or can be cascaded down to multiple lower levels when used in system with multiple voltage levels. The device has been designed to provide ultra-low ripple output, high accuracy and high performance while maintaining reasonable power consumption. The device is easy to set-up, program and use, making it an ideal choice for high-performance voltage regulation applications.

Working Principle

The NCV8800HDW75 switches between two states in order to boost the input voltage from a low input voltage to a higher output voltage. The device incorporates a high-efficiency PWM converter along with a high-efficiency buck regulator. The PWM converter boosts the input voltage to the output voltage, while the buck regulator maintains a steady voltage at the output. The PWM converter also ensures fast response when the input voltage varies, or when it needs to supply an additional current load.

The device features a wide input voltage range and programmable operating frequency. The adjustable frequency and a constant switching frequency ensure smooth operation, while ensuring noise-free operation. The device is equipped with an internal temperature sensor and power shunt, which monitors the switching frequency, system temperature, and provides an indication when the device is overloaded or has an input voltage that is out of range.

The NCV8800HDW75 is built with a bandgap oscillator, which provides a stable reference to control the switching frequency for the PWM converter and the buck regulator. This oscillator has been designed with a frequency doubling capability to reduce output ripple. It also uses an internal driver in order to reduce current consumption and prevent ground loop current. The device also includes a built-in over-voltage protection circuit to prevent summer surge currents.

In summary, the NCV8800HDW75 DC/DC switching regulator provides high efficiency, low noise, and accurate voltage regulation in a small package. It is ideal for a variety of applications and can be effectively used in systems with low voltage sources. The adjustable frequency and broad input voltage range make the NCV8800HDW75 a perfect choice for high-performance voltage regulating systems.

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