NCP1030DMR2G

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NCP1030DMR2G is a low component count and cost-effective device designed for power supply applications. It is a member of the PMIC (Power Management Integrated Circuits) family, which means that all AC-DC converter, offline switch, and regulation are integrated onto a single chip. This helps to reduce component count, component cost, and system size.

Features

• Wide 4V to 18V input capability
• Input current up to 3A
• 100% duty cycle operation with 5V as output voltage
• Accurate fixed frequency operation up to 650KHz
• Accurate synchronization between multiple channels
• Low component count
• Low jitter for critical applications
• Soft-start, brown-out and overvoltage lock-out protection
• Fault pin and user-programmable current limit protection
• Integrated shutdown and power-saving features

Application Field

The NCP1030DMR2G is suitable for a wide range of applications such as distributed power, multiple output power supplies, telecom and networking, automotive, and more. For example, it is used in distributed power systems to convert and regulate the incoming voltage to a lower voltage necessary for powering the components of the system. In addition, the device offers a wide range of features such as soft-start, brown-out, and overvoltage lock-out protection, synchronization between channels, integrated shutdown and power-saving features, fault pin and user-programmable current limit protection, and more.

Working Principle

The NCP1030DMR2G has an integrated oscillator, MOSFETs, a PWM controller, and a power sense amplifier. The oscillator sets the device’s operating frequency and the PWM controller sets the device’s switching cycle. The power sense amplifier acts as the feedback control for the device and ensures that the output voltage is regulated. The MOSFETs act as switches, turning on and off to regulate the input voltage at the desired output voltage. The device uses pulse modulation to regulate the output voltage, switching on and off at precise intervals.

When the device is switched on, the oscillator starts the device in cycle mode and the MOSFETs get turned on, allowing the input voltage to be sent to the output. The power sense amplifier then senses the output voltage and sends a signal to the PWM controller, which adjusts the on and off time of the MOSFETs to regulate the output voltage.

The NCP1030DMR2G has many features to ensure optimal performance and efficiency. It has a soft-start feature, which helps reduce inrush current by gradually increasing the output voltage, as well as a fault pin control, which allows for the user to set a minimum current for the output. In addition, the device has a brown-out protection feature, which prevents the output voltage from dropping too low, by shut down and then restart in cycle mode. Finally, the device also has an overvoltage protection feature, which prevents the output voltage from rising too high, by offering an immediate shut down.

Conclusion

The NCP1030DMR2G is a low component count and cost-effective device suitable for a wide range of applications, including distributed power systems. It has a wide input voltage capability and provides accurate synchronization between multiple channels. The device also has features such as soft-start, brown-out and overvoltage lock-out protection, fault pin and user-programmable current limit protection, and integrated shutdown and power-saving features. With its wide range of features, the NCP1030DMR2G is an ideal device for power supply applications.

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