MC33364DR2G

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MC33364DR2G is a low power, cost-effective switching regulator that is specifically designed to address the needs of applications where thermal performance and low input quiescent current matter most. This device, which is part of the Power Management Integrated Circuit (PFM IC) family, switch mode, is used in many of the most popular applications such as handheld dimmers, computing devices, audio equipment, electronic HVAC systems, automotive electronic equipment and many more.

The MC33364DR2G switch mode power regulation is a single-ended, non-isolated synchronous buck converter. It can be used in various offline switching applications. This regulator is capable of providing up to 2A output current, and it can be modulated down to 10V. The input voltage is capable of being modulated up to 40V while still maintaining its excellent ripple rejection ratio over the entire input voltage range. The MC33364DR2G has an adjustable switching frequency from 300kHz to 2.1 MHz, making it ideal for designing low electromagnetic interference (EMI) applications.

The MC33364DR2G features the pulse-width modulation (PWM) method of controlling the switching frequency. This method provides efficient power conversion for a wide input and output voltage range. It is also capable of delivering up to 95% peak efficiency, which is perfect for applications where thermal performance and power consumption are key. The converter offers high-performing filtering capabilities but still maintains a low-profile design that fits easily into a wide range of form factors.

The working principle of the MC33364DR2G converter involves the use of modern pulse-width modulation (PWM) technology. During the switch-on phase, a voltage regulator charges up the inductor. When the voltage reaches its set limit, the regulator switches off and the stored energy is transferred to the output as a pulse current. The energy stored in the inductor creates a smooth, regulated output voltage. The PWM control also prevents large voltage peaks, which can damage sensitive devices. The available soft-start feature ensures smoother operation at startup.

The MC33364DR2G is an ideal choice for many offline switching applications due to its low input quiescent currents, high ripple rejection and high efficiency. The adjustable switching frequency makes it suitable for low EMI applications, while its excellent thermal performance reduces the need for heat sinks or extra cooling components. It also offers a wide range of adjustable parameters, such as output voltage, switching frequency and soft start, allowing designers to tailor the converter to their specific application.

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