NCP1400ASN45T1G

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DC–DC switching regulators are a popular power-management approach for consumer electronics and embedded systems, offering improved efficiency, precision, and reliability at a lower cost than linear voltage regulation. A new component from ON Semiconductor, the NCP1400ASN45T1G offers the same benefits along with a very thin package footprint of 1.45mm height and a comprehensive safety feature set.

The NCP1400ASN45T1G is a simple and robust power supply solution designed to manage the power requirements of consumer electronic designs. It is a constant-on-time (COT) current-mode forward converter that regulates an output voltage from a reactive input source, such as rectified mains, solar panels, and adapters. This highly integrated part integrates all the main components needed to build a forward converter such as two power MOSFETs, a driver IC, inductor, output capacitor, and all of the required protection circuitry.

The NCP1400ASN45T1G provides a wide input voltage range from over-voltage protection (OVP) to 6V, offering improved design flexibility. The 1.45mm ultra-thin TSSOP-16 package is similar in size to an SO8 package and is 54% smaller in area and 62% smaller in height compared to a QFN-20 package. In addition, the package is halogen and antimony-free, making it a good choice for automotive and consumer applications.

The part additionally offers a variety of features to help protect against over- and/or under-voltage conditions. It features an adjustable over-voltage and under-voltage protection that can be programmed via a single resistor and can offer up to 18V and 4.55V of protection, respectively. Additionally, the device can detect an output short-circuit condition and will shut down the output. This is a safety-critical feature that helps ensure that the system itself will not be damaged.

The NCP1400ASN45T1G also offers reliable performance under low input conditions. It is capable of sustaining load operation down to 0.8V, allowing designers to use it in applications where the input voltage can drop below the minimum operating voltage. Additionally, the part has a wide operating temperature range of -40°C to +125°C, allowing it to be used in extreme temperature environments.

The NCP1400ASN45T1G is a great choice for a wide range of power supply applications in consumer electronics, embedded systems, automotive, and industrial systems. Its compact size, comprehensive features, and wide temperature range make it an ideal solution for space-constrained designs. In addition, the design approach helps ensure the highest level of system reliability.

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