NCV8114BSN330T1G

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The NCV8114BSN330T1G is a linear voltage regulator of supply reverse current protection with a package outline of 2-SOT223-4. This recently released chip offers a wide range of features for a variety of different applications. Here we’ll take a closer look at the applications and working principles of the NCV8114BSN330T1G.

Applications: The NCV8114BSN330T1G has a broad range of applications due to its capability of producing an output voltage range of 3.2 V to 12 V. The device is ideal for automotive, power, industrial and other demanding applications. It comes with a range of features such as low quiescent current, fast transient response, and patent pending Active EqualizationTM which ensures flat switching response across output voltages.

The NCV8114BSN330T1G makes for an excellent power supply for USB-C PD as it has a low quiescent current of just 30mA, enabling low-power operation. This makes it well-suited for ultra low-noise applications where power consumption is a major concern. The device is also remarkably tough, able to survive an output short circuit for one second and can easily tolerate reverse bias on the output.

In terms of general purpose applications, the chip is capable of powering microcontrollers and processors, as well as sensors and logic circuits. Its fast transient response time is also ideal for rapid power management, allowing it to be used in high-frequency switching applications.

Working principles: The NCV8114BSN330T1G voltage regulator includes a power transistor, low-loss current sense resistors, and a low-dropout regulator (LDO). The LDO is the essential component, regulating the output voltage with feedback in order to maintain a constant, stable output. It uses a cascade structure with a pre-regulation stage and a high-frequency converter. This provides fast transient response, minimized output voltage change, and minimal input ripple.

The power transistor is connected to the main power supply and it controls the amount of current to the voltage regulator. The current sense resistors monitor the output current and, in the event of an overcurrent situation, the power transistor will be shut off. The low-loss resistors ensure minimal power dissipation and excellent system efficiency.

The device features reverse current protection, eliminating any damage from current resulting from the reverse flow from the output to the input. This is especially valuable in automotive applications, as an LDO can be damaged if exposed to a reverse current. The reverse current protection limits the reverse current to just 0.5mA.

Finally, the device includes a thermal shutter which prevents the device from overheating due to a fault or other issue. If the temperature of the device exceeds a set limit, the thermal shutter will activate and shut down the device until a safe temperature is achieved.

In conclusion, the NCV8114BSN330T1G is an incredibly versatile linear voltage regulator with a range of features and capabilities making it ideal for a range of automotive, industrial, and power applications. It offers excellent output regulation, fast transient response, and low quiescent current, as well as reverse current protection and thermal shuttering, ensuring reliable and safe operation.

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