SMP3003-DL-1EX

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The SMP3003-DL-1EX is a type of single-transistor switch module, commonly referred to as an SSM, or switcher. It is typically used in applications where high speed switching is required and where ultra-low-on-resistance is desired. The SMP3003-DL-1EX is a power device from ON Semiconductor’s new “Deep Ultralow ON-Resistance” technology, meaning that it has exceptionally low-on-resistance to ensure efficient power performance. This patented technology is designed to offer both enhanced power delivery and improved power efficiency for a variety of applications.

The SMP3003-DL-1EX is composed of an N-channel Metal-Oxide Field-Effect Transistor (MOSFET) with an ultra-low drain-source on-resistance (RDSon). This RDSon of 13 milliohms maximizes power efficiency, while the device’s integrated body diode provides a low drop out when switching between the high and low states. The SMP3003-DL-1EX is available in a surface-mount package and is specified to operate over an extended temperature range of –55°C to +125°C.

The SMP3003-DL-1EX is designed for a variety of power applications including Power over Ethernet (PoE), telecommunications, industrial and consumer applications. The SMP3003-DL-1EX is ideal for applications where a reliable switch is needed for low voltage applications, such as Ethernet PoE Ethernet systems, LED lighting, and other digital power supplies.

The working principle of the SMP3003-DL-1EX can be broken down into a few key steps. First, the power supply is connected to the Vdd power pin and the Vss ground pin of the MOSFET. To turn the switch on, a logic signal is applied to the Gate pin, which causes the MOSFET to conduct. When the Gate signal is removed, the MOSFET is cut off and the power supply is removed from the two pins, effectively switching the SMP3003-DL-1EX off.

The SMP3003-DL-1EX is further equipped with a built-in body diode that is effective at preventing voltage overshoot during switching. The device also features an externally adjustable soft-start pin to limit the inrush current, or the amount of current that flows when the switch is turned on. The device is also designed with an optional gate driver to provide a logic level signal to the gate pin, which helps to ensure consistency in the switch’s performance.

The SMP3003-DL-1EX is an excellent choice for anyone looking for a reliable and efficient single-transistor switch for their application. With its impressive specs, low-on-resistance, and integrated body diode, it is sure to meet the needs of any power application.

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