NCP4681DMX35TCG

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NCP4681DMX35TCG is a three-terminal high-side ultra low-dropout linear voltage regulator (LDO) from TDK. It provides up to 2A of continuous current in a small 2mm x 1.8mm MLP-9 package. The device is capable of output voltages from 1.1V to 20V and for a wide input range of 2.7V to 20V. Typical features of the device include: adjustable or fixed output voltages, temperature performance of 2mV/°C, reverse current protection, over-current protection, fast transient response, soft-start capability, very low dropout voltage of 250mV at full 2A load, very low quiescent current of only 9µA at no load, shutdown mode and EMI filtering capability.

The NCP4681DMX35TCG is used primarily in power management applications such as mobile phones, cellular base stations, notebooks and servers. It can be used to power a wide variety of electronic devices, including microprocessors, ASICs, microcontrollers, FPGAs, RF transceivers, memory circuits and other digital and analog circuits. The device is designed to provide a regulated output voltage with excellent accuracy and line regulation. The output voltage is adjustable by an external resistor.

The NCP4681DMX35TCG is an exceptionally efficient device for power management applications. Its very low quiescent current and low dropout voltage make it ideal for powering low-power devices. It also has reverse current protection and over-current protection. The device also has a shutdown mode and built-in EMI filtering capability. This makes it very suitable for use in noisy environments.

The working principle of the NCP4681DMX35TCG is based on a three-terminal, two-stage voltage regulator architecture. It has an input terminal, an output terminal, and a reference terminal. The input is connected to the power supply and the output is connected to the load. The reference terminal is connected to a voltage divider network which sets the output voltage. The output voltage is constantly monitored and adjusted by the regulator to maintain the output voltage at the desired level. The device also has a wide range of features such as reverse current protection, over-current protection, fast transient response, soft-start capability and shutdown mode.

In summary, the NCP4681DMX35TCG is an exceptionally efficient, ultra-low dropout linear voltage regulator suitable for a wide range of power management applications. It has excellent line regulation, adjustable voltage output and reverse current protection. It also has a very low quiescent current, over-current protection, fast transient response and EMI filtering capability. The device is perfect for powering low-power devices in noisy environments.

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