NCP1117DT25RK

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NCP1117DT25RK is a linear voltage regulator for use in negative-current voltage regulation applications.

Linear voltage regulators are required when the output power is relatively small and input voltage must remain constant. It is responsible for maintaining a steady voltage and output current level, as well as protecting electronic components from a sudden rise and fall in power, spikes and noise.

The NCP1117DT25RK is a 3-terminal adjustable voltage regulator capable of supplying up to 100mA of output current to a load. It has a maximum input voltage of 25V, and output voltage can be adjusted from -1.25V to -20V. The device utilizes current-mode control and provides an internal limiting, short circuit protection and thermal protection.

This particular device is widely used in portable, remote and industrial equipment, such as in automotive, telecom and consumer electronics applications. It can also be used in DC-DC converters, AC-DC adapters and battery chargers, among others.

The NCP1117DT25RK works by acting as a buffer between the input voltage source and the output voltage load. It senses the difference between the input and output wires and adjusts the output voltage to maintain a steady value. The output voltage is then regulated by the amount of current that passes through an internal resistance created by a power transistor.

To regulate the output voltage, the NCP1117DT25RK uses a pulse-width modulation (PWM) technique. In this method, pulses of variable width are used to change the current passing through the power transistor. The longer the pulse, the higher the output voltage.

The NCP1117DT25RK also features an input pin (input voltage bypass pin), which can be used to ensure voltage accuracy. The device also features a power switch, which allows the user to manually turn on or off the output voltage. This can be used in applications where the output voltage needs to be turned off when not in use.

The NCP1117DT25RK is a versatile and reliable linear voltage regulator for controlling and stabilizing precision outputs. It is suitable for a variety of negative-current voltage regulation applications, making it a popular choice for many engineers.

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