PT3343N

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

DC-DC converters play an important role in power supply circuits, enabling the efficient transformation of DC power from powers sources such as DC batteries and photovoltaic cells. One of these DC-DC converters is the PT3343N, a high-performance, low-cost, high-efficiency, low-voltage DC-DC converter with a wide range of applications.

The PT3343N is a step-down DC-DC converter made from a combination of an integrated power switch and an integrated control circuit. The power switch is a power N-channel MOSFET (NMOS) that operates at up to 600kHz, with a maximum output current of 3.5A. The integrated controller is a PWM-controlled Buck converter that provides a wide range of power conversion features, such as frequency adjustable. The integrated circuit is designed for a wide input voltage range (4.0V-36V), making it suitable for applications where the input voltage varies greatly.

The most significant feature of the PT3343N is its high efficiency rating, which can reach up to 97% under an idealised load condition. Due to its low voltage and low-temperature startup, as well as its high-speed switching, the PT3343N is capable of a wide output voltage regulation range and a short start-up time. The wide range of output voltage allows greater flexibility and versatility when the outputs have to be matched to a particular requirement or application.

In terms of the practical applications of the PT3343N, it can be used for various low-voltage DC power applications such as laptops, mobile phones, digital cameras, MP3 players, portable energy storage systems, vehicle power supplies, and home appliances. Its high efficiency eliminates the need for large heatsinks, making it ideal for applications where space and weight are of interest.

The working principle of the PT3343N is based on the switching action of the N-channel MOSFET, which turns ON and OFF at high speed in response to the input voltage. The MOSFET is controlled by the integrated PWM circuit, which varies the switching frequency and duty cycle to regulate the output voltage to the desired level. The switching action causes the input voltage to be converted into an output voltage of requisite magnitude.

The PT3343N has several safety features built in, such as over-voltage and over-temperature protection, short circuit protection, and automatic reset for over-current protection. This ensures the reliable and safe operation of the converter when the conditions are extreme. The PT3343N also features a current per-voltage-slope compensation pin, which improves the dynamic response and reduces the output noise.

In conclusion, the PT3343N is a highly efficientstep-down DC-DC converter that is designed for a wide range of applications. Its high efficiency, wide output voltage range, high-speed MOSFET switching, and integrated safety features make it a perfect choice for low-voltage DC power applications in various industries.

The specific data is subject to PDF, and the above content is for reference