NCV4279A50D2R2G

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NCV4279A50D2R2G - Application Field and Working Principle

The NCV4279A50D2R2G voltage regulator is a high-performance, low-dropout linear regulator (LDO) used for functional system power management of portable applications. The device is compliant with the AEC-Q100 Quality Standard (ASIL B Ready) and rated for protection against moisture and dust to IP60.

The NCV4279A50D2R2G provides 2A of continuous output current while supporting wide input voltage range from 10V to 6.5V. The device also features a standard output voltage of 5.0V and a wide output voltage range of ≤ 5V ± 0.25V when providing 500mA or 2A of output current. This device is especially suited for automotive, industrial and consumer applications demanding ultra-low power consumption, low thermal pressure and high power conversion efficiency.

Features

• High performance and low dropout linear regulator
• Wide input voltage range from 10V to 6.5V
• Standard output voltage of 5.0V
• Wide output voltage range of ≤ 5V ± 0.25V
• 2A of continuous output current
• Ultra-low power consumption, low thermal pressure and high power conversion efficiency
• Compliant with the AEC-Q100 Quality Standard (ASIL B Ready)
• Rated for protection against moisture and dust to IP60

Application Field

The NCV4279A50D2R2G voltage regulator is ideal for applications that require low dropout output voltages and high power conversion efficiency such as automotive, industrial, consumer, and other portable electronic applications. Its low dropout ensures continuous switching and low on resistance, making the device ideal for use in DC-DC converters, battery-powered systems, and high-reliability designs.

The device is particularly suited for applications that require a low-dropout linear regulator with a wide output voltage range and low quiescent current. The device also features high power conversion efficiency and low output voltage ripple, making it well suited for systems with high power requirements, such as automotive and industrial applications.

Working Principle

The NCV4279A50D2R2G voltage regulator operates by comparing the output voltage with the reference voltage generated by the internal voltage reference circuit. When the output voltage deviates from the reference voltage, an internal error amplifier increases or decreases the amount of current supplied to the output transistor. The variation of the output current drives the output voltage towards the reference voltage level.

The output voltage is monitored at all times, and the output transistor is adjusted as necessary to maintain the output voltage as close to the reference voltage as possible. This is the main task of the linear regulator. Once the output voltage has been stabilized, the current passing through the transistor drops to a low level so the power consumption is minimized.

The NCV4279A50D2R2G voltage regulator also features a low-dropout feature, which ensures that the output voltage is maintained at the level regardless of changes in the input voltage, as long as the input voltage is greater than the output voltage by more than the dropout voltage. This allows the device to maximize the power efficiency and maintain a stable output voltage even at low battery voltages.

Conclusion

The NCV4279A50D2R2G voltage regulator is a high-performance, low-dropout linear regulator targeted for use in automotive, industrial and consumer applications demanding ultra-low power consumption, low thermal pressure and high power conversion efficiency. Its wide input and output voltage ranges, as well as its low dropout feature make it an ideal solution for applications requiring low voltage outputs, low quiescent current, and high power conversion efficiency.

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