MC33166T

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The MC33166T is a combination of a variable frequency PWM (pulse-width-modulated) controller, an alternative current (AC) voltage regulator and a DC-to-DC switching regulator in one package. It is designed to help reduce external components and simplify application designs. The MC33166T is a monolithic integrated device with a high operating frequency of up to 500 kHz, making it ideal for applications demanding both high step-down efficiency and high power density.

Applications:The MC33166T is ideally suited for purposes such as noise removal, eliminating power supply harmonics, and providing a basic power supply in a wide range of applications, from office equipment and consumer electronics to mobile applications and other industrial equipment.

Working principle:The MC33166T operates using a voltage regulator circuit. It is a high-efficiency switching regulator that provides an output voltage that is proportional to its input voltage. When the input voltage exceeds the output voltage threshold (set by the user), the MC33166T then switches on the DC-to-DC converter. The sizing of the switch determines the amount of output current required. The voltage regulator circuit then maintains the output voltage at a set level provided the input voltage is higher than the set threshold. A dynamic response matrix is available ensuring an optimal voltage specified by the user.

The MC33166T is an adjustable, pulse-width-modulated, DC-to-DC switching regulator. It is used to condition an incoming voltage to an output level that is lower than the input voltage. The properties of the regulator can be adjusted to ensure the output has various characteristics, such as an adjustable frequency, an adjustable pulse width, and adjustable rising and falling times.

The MC33166T has built-in power factor correction, allowing it to maintain high efficiency even when the input voltage is below the output voltage threshold. The MC33166T also has overload and short-circuit protection. It is designed to reduce external components, reduce size, and simplify system design.

In summary, the MC33166T is an integrated device composed of a variable frequency PWM controller, an AC voltage regulator and a DC-to-DC switching regulator. It is capable of delivering high efficiency in applications demanding both high step-down efficiency and high power density, and offers power factor correction, over-current and short circuit protection, and adjustable frequency and pulse width.

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