PT78NR103V

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DC-DC converters are devices which can convert direct current power from one voltage level to another. The PT78NR103V is a DC-DC converter manufactured by Wuxi Powerstar, a leading manufacturer of electronic components. This particular model is a non-isolated, wide input voltage range, ultra-small step-down power converter with high-efficiency integrated high-side MOSFET and integrated secondary side synchronous rectification.

The PT78NR103V is designed specifically to have low standby power consumption and high efficiency over a wide input voltage range of 4V to 36V. It is also designed for short circuit and over-temperature protection to ensure safety and reliability, as well as programmable soft-start up functions which enable the output to be ramped up in small steps rather than in one large burst. The device features a maximum input current of 3A, a maximum output current of 2.5A, an output voltage adjustable range of 0.8V to 20V, and high efficiency up to 97%.

How does the PT78NR103V work? It operates on the buck converter principle, where the input voltage is “buckled” or reduced by a series of high-performance components such as a switch, diode, inductor, and capacitor. The output voltage is regulated through the change in conduction period of the Switch, with the Duty Cycle being proportional to the input voltage.

The PT78NR103V is a highly versatile device that can be used in multiple application fields. It is commonly used in telecom infrastructure equipment such as routers and switches where low standby power consumption is required. It can also be used in data centres, industrial automation, LED lighting systems, automotive infotainment systems, and motor controllers.

In conclusion, the PT78NR103V is a highly efficient DC-DC converter with high input voltage range, small footprint, and low standby power consumption. It is also a highly versatile device which can be used in multiple application fields such as telecom infrastructure equipment, data centres, industrial automation, LED lighting systems, automotive infotainment systems, and motor controllers.

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