NCV891130PD40R2G

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NCV891130PD40R2G is a DC-DC Buck (step-down) converter primarily designed for low output voltage applications. It is a high-efficiency, wide input voltage and high current synchronous step-down switch mode DC-DC power converter. It is designed specifically for use in a wide range of applications such as digital cameras, mobile devices, industrial controls and automotive infotainment systems.

NCV891130PD40R2G provides peak switching of up to 40A with a differential output voltage as low as 0.3V at up to 8MHz of operating frequency. The device can be configured to operate in both Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM). It utilizes a four-phase interleaved topology for improved current sharing and ripple performance, as well as for reduced output ripple. The device operates with 4.75V to 18V input voltage range and is available in a 10x10mm HSOP-24 package.

The primary feature of the NCV891130PD40R2G is its low output ripple and broad input-output voltage range. The input-output range of 0.3V to 2.5V enables efficient conduction and improved power density. It also offers excellent transient performance and low noise output, allowing it to be used in noise sensitive environments. The switching frequency can be programmed from 200kHz to 8MHz, ensuring the device can be tailored to the application’s specific requirements.

The application fields of NCV891130PD40R2G are wide, such as general power requirement of digital cameras, game consoles, handheld devices and computer motherboards; power supply for servers, hard disks and raid cards; DC-DC converters for communications/networking/IT equipment; power requirement of public safety radios, digital TVs, industrial control equipments and automotive infotainment systems.

The working principle of NCV891130PD40R2G is simple and effective. The device uses a synchronous buck topology to step down a higher input voltage for applications with a corresponding lower output voltage. The core of the design consists of two main components: a main switch and its complementary synchronous rectifier FET. It utilizes a high side N-MOSFET and a low side P-MOSFET controlled by a control circuit. The main switch is connected to the input voltage. When a certain switch on time is reached, the switch will turn on and pull the voltage from the VIN to a lower voltage, reducing it to the appropriate output voltage. The synchronous rectifier FET allows switching of the N-MOSFET and P-MOST when the main switch is turned on, preventing current from flowing through the main switch and allowing the output voltage to stay at the desired level.

Overall, the NCV891130PD40R2G is an ideal choice for low voltage output applications. Its wide input voltage and high current switching, low output ripple and transient performance make it a popular choice for various applications. It can also be used in noise sensitive environments thanks to its low noise output. The device is easy to use and has a simple and effective working principle, making it a cost-effective solution.

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