NCP130BMX080TCG

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The NCP130BMX080TCG is a monolithic integrated system solution which helps configure, regulate and monitor voltage used in the backlighting system of videos projectors, laptops and televisions.

Overview

The device integrates a voltage reference and a DC/DC converter composed of a voltage regulator and a linear regulator in a proprietary integrated circuit. Its set-up is flexible, enabling backlighting and power supply solutions.

The NCP130BMX080TCG, with a root node and a configurable register, ensures a precise and stable voltage, ensuring that the backlight is always at the desired level. This solution simplifies the design of voltage regulation and backlight control circuits, and where previously design engineers had to use several components, the NCP130BMX080TCG allows them to reduce their design space and costs.

Application fields of NCP130BMX080TCG

The NCP130BMX080TCG is primarily intended for smartphones, tablets and eyes, where it can replace several separate components. However, its features and design makes the NCP130BMX080TCG equally suitable for designs with finite performance optimization, cost reduction and increased efficiency.

In addition to video displays, the NCP130BMX080TCG can also help in automotive, point-of-sale, industrial and other settings, including those with power supply, lighting, charging and monitoring requirements.

Design Considerations

The NCP130BMX080TCG integrates both a voltage regulator and a linear regulator on a single integrated circuit. This allows a single external switching capacitor and inductor design to power the device and an external resistor to program the output voltage. This makes the device suitable for applications with limited space or budget.

The device also supports adjustable switching frequency, output current, and various safety features such as over voltage and short circuit protection. The NCP130BMX080TCG also has multiple fault reporting functions, which adds flexibility and gives designers greater control over the device.

Working Principle of NCP130BMX080TCG

The NCP130BMX080TCG integrates a voltage reference and a DC/DC converter in a single integrated circuit. The voltage reference generates a precise and temperature stable voltage, which is used to set the output voltage and accuracy of the generated output voltage.

The switching regulator part consists of an internal switch and control circuitry. The internal switch is connected between an inductor and the output pin. The control circuit modulates the ON/OFF cycle of the switch to limit the output voltage to the reference voltage plus a voltage drop across the inductor. This is known as Pulse-Width Modulation (PWM) control.

The linear regulator is a low-cost solution and is used when both low noise and low ripple are needed. It works by comparing the output voltage of the buck converter to a reference voltage, such as the output of the voltage reference. If the output voltage is higher than the reference, the comparator turns on the linear regulator, and the difference between the output voltage and the reference voltage is the output of the linear regulator.

In summary, the NCP130BMX080TCG has the advantage of integrating both a voltage regulator and a linear regulator, making it suitable for applications where both finite performance optimization, cost reduction and increased efficiency are desired.

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