NCP1400ASN25T1G

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The NCP1400ASN25T1G is a highly integrated single inductor DC/DC switching regulator. It combines a synchronous rectification P-channel MOSFET and a low-RDS(on) N-Channel MOSFET combined with a current mode PWM controller, to offer excellent efficiency while allowing a wide input voltage range. This device is designed to provide excellent line and load regulation, as well as good transient response with small external components.

The NCP1400ASN25T1G is especially suited for power conservation applications, such as battery operated systems, and other point-of-load applications that require a step-down voltage conversion from 1.4 V to 1.25 V and less. The integrated solution provides a cost effective solution to the customer compared to other discrete solutions.

The NCP1400ASN25T1G is intended for application fields such as consumer and portable electronics, mobile phones, audio, laptops, LCD monitors and other portable devices, where a compact area along with high efficiency and small thermal footprint are desired. Its ultra-fast transient response and low noise also make it suitable for automotive and industrial applications.

The NCP1400ASN25T1G’s operating principle is based on the energy recovery principle. This principle works by changing the direction of the energy flow in the circuit, allowing the energy to be stored in an inductor, then discharged with the opposite polarity. This means that the current can flow in both directions, allowing the input voltage to be reduced while maintaining the same output voltage. The NCP1400ASN25T1G is composed of a P-Channel MOSFET, an N-Channel MOSFET, as well as a current mode PWM Controller, all of which are used to optimize the circuit for efficiency.

The NCP1400ASN25T1G includes features like built-in protection against output over current, output over voltage, and over-temperature, as well as adjustable soft-start capability. It has a wide input voltage range from 1.5V to 5.5V, and an adjustable output voltage range from 0.4V to 1.35V. It also has internal compensation to reduce external components. Additionally, it has a high switching frequency at 950KHz, allowing for smaller external components.

Overall, the NCP1400ASN25T1G is an excellent choice for applications requiring a high efficacy DC to DC power switch with high integration, tiny macro-footprint, low noise, and excellent transient response. Its wide range of features, coupled with its small form factor, make it an ideal choice for applications such as mobile phones, audio, laptops, LCD monitors and other portable devices.

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