NCP43080ADR2G

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The NCP43080ADR2G can be classified as an IC in the PMIC - Power Supply Controllers, Monitors group. It is a high-performance, low dropout (LDO) regulator from Texas Instruments which provides up to 400mA of output current and very low noise levels. The NCP43080ADR2G can also operate in multiple modes, including low dropout regulator (LDO) and Pulse-Width-Modulated (PWM) regulation modes.

The device has a wide differential input voltage range, from 0.7V to 5.5V, and is suitable for a range of applications, such as 12V automotive systems and portable consumer electronic devices. It also uses less power and more than doubles efficiency over the previous NCP43081 version. The device is housed in a standard 6-pin, SON package and offers internal reverse current protection.

The NCP43080 ADR2G has a maximum quiescent current of only 0.7mA, reducing power consumption and providing substantial energy savings in a wide range of consumer and automotive applications. It features a low output noise level of 4mV RMS, enabling performance sensitive applications such as audio amplification and radio frequency (RF) systems to achieve optimal sound quality.

The NCP43080ADR2G has been designed for use in automotive, consumer and industrial applications. It is suitable for use in 12V systems such as cars and boats and can provide up to 400mA output at 5V and other popular output voltages. It can also be used in many consumer applications, such as portable music players, game consoles, and remote control/toy cars. The device is also ideal for industrial products, such as variable speed drives, controllers and systems.

The working principle of the NCP43080ADR2G is based on a discrete-component linear regulator circuit that utilizes a P-channel MOSFET. It has a series pass configuration, where the voltage pass element is connected in series between the input and output capacitor. The input is then applied at the drain of the pass element, and the output voltage is magnified across the pass element. Output current is regulated through the gate voltage of the pass element, which is proportional to the output current.

The NCP43080ADR2G also features an additional low-voltage reference output which can be used to set low voltage thresholds or monitor a second supply voltage. This is useful for system-level monitoring, such as the supply voltage detection for a microcontroller, which requires the use of a third-party isolated reference.

Due to its wide input voltage range and adjustable output voltage, the NCP43080ADR2G is an ideal choice for a variety of applications. It boasts excellent efficiency, very low output noise, and minimal quiescent current. The device is also RoHS compliant, making it suitable for the most stringent environmental design regulations.

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