NCP785AH50T1G

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NCP785AH50T1G is a voltage regulator used in Electronics and Electrical engineering systems operating at 3.3V and 5.0V DC. It is classified under the category of PMIC – Voltage Regulators – Linear. The device primarily finds use in power supplies and hardware solutions where it serves the purpose of controlling current and voltages.

The NCP785AH50T1G is a dual 5-pin linear voltage regulator that provides a 3.3V and 5.0V DC regulated output without the need for an external voltage source. It can provide a maximum output current of 250mA, which can be increased using an RF current booster.

The device is equipped with three basic control pins (VSS, VSEN, and RST), an enable pin (EN), an output pin (OUT), and a ground pin (GND). The VSS pin is used to control the input voltage and the OUT pin is used to provide the output voltage. The VSEN pin is used for selecting the type of output voltage (3.3V or 5.0V). The RST pin is used to reset the output voltage.

The NCP785AH50T1G can be used in a variety of applications such as power management ICs (PMICs), power supply systems, and voltage regulation in microprocessors. It is ideal for automotive applications, battery-powered systems, and industrial applications that require reliable power regulation.

The working principle of the NCP785AH50T1G is straightforward. It uses an internal power MOSFET and voltage divider network to convert the input voltage into a regulated output voltage. The internal MOSFET takes the input voltage and passes it through the voltage divider, which is a two-stage circuit that divides the input voltage into two sub-voltages. The first part of the voltage divider is the 470K resistor and capacitor, while the second part is the 22K resistor and capacitor. The two sub-voltages are combined and passed on to the output pin. The output voltage can be selected and adjusted by changing the voltage on the VSEN pin.

The device also has several basic protection features such as an undervoltage lockout (UVLO), an overvoltage lockout (OVLO), and an overcurrent protection (OCP). The UVLO prevents the output voltage from going below a certain value, while the OVLO and OCP protect the device from excess current as well as overvoltage.

In conclusion, the NCP785AH50T1G is a linear voltage regulator ideal for many power management applications. It can provide a 3.3V and 5.0V DC regulated output without the need for an external voltage source. It has several basic protection features and is well suited for automotive, battery-powered, and industrial applications.

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