NCV8509PDW18R2

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NCV8509PDW18R2 is a low dropout voltage regulator (LDO) manufactured by ON Semiconductor. It is part of the NCV8509 family of LDOs, which offer low noise and high current capabilities. This device is designed to provide a regulated output voltage from an input voltage of up to 18V, and is capable of delivering up to 1.5A of output current.

The NCV8509PDW18R2 is primarily used for powering ICs and other devices that require a regulated voltage supply. The device is designed for use in applications where the output voltage is typically set to a fixed value, such as 5V, and the input voltage can vary from 4V to 18V. This feature makes it suitable for applications where the input voltage can vary, but the output voltage needs to remain constant.

The NCV8509PDW18R2 includes a short-circuit protection feature, which shuts the device down if the output current reaches an unsafe level. The device also includes thermal overload protection, which shut the device down if it gets too hot. The thermal overload protection also provides a soft start feature, which helps to reduce any inrush current at turn-on.

The device includes an adjustable current limit, which allows the user to set the maximum output current that the device can provide. The adjustable current limit can be set by two external resistors, and is designed to protect the device against excessive load current.

The NCV8509PDW18R2 is a low noise regulator, making it suitable for applications where low noise is essential. The device offers very good noise performance at low input voltages, and can provide a stable output voltage with just a few microvolts of ripple (at full load).

The NCV8509PDW18R2 is designed with a PMOS pass transistor and a PNP output stage. The PMOS pass transistor is used to regulate the current that is supplied to the output stage, and this current is used to maintain the output voltage. The PNP output stage is used to provide the output current, and the current supplied to the output stage is regulated by the PMOS pass transistor.

The NCV8509PDW18R2 offers excellent line and load regulation and is very stable over a wide range of operating temperatures. The device has a low input bias current and is designed with low power consumption, making it suitable for use in battery-powered applications. It is also designed with thermal compensation, which helps to ensure that the output voltage remains stable over changes in temperature.

The NCV8509PDW18R2 is a high performance, cost-effective solution for providing a regulated voltage in applications where the input voltage can vary. It offers excellent noise performance, short-circuit protection, adjustable current limit, and thermal overload protection. The device is suitable for battery-powered applications that require low power consumption and a stable output voltage over a wide range of operating temperatures.

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