MC33FS4502NAER2

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The MC33FS4502NAER2 is a specialized power management integrated circuit (PMIC) from ON Semiconductor. This PMIC is ideal for use in embedded applications in industrial, automotive, and consumer electronics. It is designed to provide reliable and cost effective power management capabilities while meeting the most stringent requirements of these demanding applications.

Features of the MC33FS4502NAER2

The MC33FS4502NAER2 offers a variety of features that make it suitable for use in various applications. These features include:

• Integrated isolated power switches
• High switching speed and response time
• High efficiency MOSFETs
• Temperature and over-current protection
• Under-voltage lockout for all supplies
• Soft-start and external sequencing options
• High frequency operation
• Wide input voltage range from 6.5 to 40V

Application Fields of the MC33FS4502NAER2

The MC33FS4502NAER2 can be used for a variety of purposes. This PMIC can be used in embedded systems, automotive applications, consumer electronics, home appliances, industrial controls and robotics. It is also suitable for use in any application where efficient and reliable power management is required.

Working Principle of the MC33FS4502NAER2

The MC33FS4502NAER2 is a buck switched-mode power supply (SMPS) with isolated power switches. This PMIC includes a high-side switch, a low-side switch, and a maximum duty cycle regulator for improved efficiency. The device operates in a buck topology when the input voltage is higher than the regulated output voltage, providing a step-down conversion ratio of up to 1:50. In boost mode, the device provides a step-up conversion ratio of up to 1:20. It also features a wide input voltage range (6.5V to 40V) with a minimum input voltage range of 3.3V.

The high-side switch regulates the current with a 0.8VDC switching threshold, while the low-side switch implements the necessary slew rate control. The maximum duty-cycle regulator adjusts the duty cycle of the high-side switch according to the voltage at the output pin. This allows for higher efficiency and better load regulation. It also allows for improved protection against over-voltage and under-voltage conditions. Additionally, the device also includes integrated thermal protection, short circuit protection, and over-temperature protection.

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