NCP3335AMN180R2G

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PMIC – Voltage Regulators – Linear

NCP3335AMN180R2G is a low quiescent current low dropout regulator (LDO) from On Semiconductor. This three terminal linear regulator is rated for an operating current of up to 1.6A, with a dropout voltage of ≤1.3V at 1.6A. The device is available in a variety of packages, including an industry-standard small-outline SOIC-8 and TO-220, plus a tiny DFN2020-8 and an E-pad CSP-5 package. The NCP3335AMN180R2G is designed to provide a regulated voltage of 0.8V to 1.85V with an operating current range of 0.1A to 1.6A.

NCP3335AMN180R2G is suitable for a wide range of applications where stability, low quiescent current and low noise are required, such as cellular phones, PDAs, notebook computers, and battery powered systems. It features low ripple rejection performance, fast turn-on, low quiescent current, temperature-compensated current limit, a wide range of output voltage options and adjustable voltage outputs. Low supply current of typically 3 mA helps to keep battery life long and allows for low power system dissipation. In addition, the NCP3335AMN180R2G\'s open loop gain is 0.9V/V.

Working Principle of NCP3335AMN180R2G

The NCP3335AMN180R2G is a linear regulator that uses an internal PMOSFET to regulate the output voltage. The device is designed to draw as low a quiescent current as possible while still being capable of providing up to 1.6A of supply current. The operating principle of the NCP3335AMN180R2G is very similar to many other linear regulators, but with some notable differences. The first difference is in the design of the P-channel MOSFET used in the regulator. This P-channel MOSFET has a low gate threshold, making it more efficient and allowing for a lower quiescent current in operation than other linear regulators. The regulator is also optimized for low noise and fast transient response, with a power-supply rejection ratio (PSRR) of -72dB at 1MHz. This ensures that the output voltage remains stable and stable even when the power supply and ground pin voltages vary.

The NCP3335AMN180R2G is also designed to have a wide operating range. The voltage range is between 0.8V and 1.85V, with an adjustment pin allowing the user to fine-tune the output voltage. The current limit can also be adjusted, with a default of 1.6A.

Also worth noting is the NCP3335AMN180R2G\'s thermal protection feature. This feature helps ensure that the device is not damaged by high ambient temperature. When the device reaches a junction temperature of +175°C, the thermal protection circuit will shut down the device, protecting it from overheating.

Applications of NCP3335AMN180R2G

The NCP3335AMN180R2G is suitable for a wide range of applications where low quiescent current and fast transient response are required. Examples of such applications include cellular phones, PDAs, notebook computers, battery powered systems and portable electronics. The NCP3335AMN180R2G is also popular in automotive applications such as powertrain control, engine control and other onboard systems that require a low dropout regulator with fast transient response.

In addition, the NCP3335AMN180R2G can also be used in digital circuits that require a low, ultra-low noise supply, such as digital audio systems. This is due to the regulator\'s low noise characteristics, as well as its high supply rejection ratio. With its wide range of packages and adjustable output voltage, the NCP3335AMN180R2G can easily be adapted to fit different applications.

Overall, the NCP3335AMN180R2G is a versatile and reliable low quiescent current linear regulator, designed for a wide range of applications. Its low quiescent current, combined with its fast transient response and tight voltage control, make it an excellent choice for many different kinds of systems.

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