MC33567D-1R2G

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MC33567D-1R2G is a linear regulator controller integrated circuit. It is designed for use as a standard linear regulator controller chip in dynamic voltage stepping-down power supplies. It is used to drive an N-channel MOSFET in a synchronous buck converter configuration.

The input voltage range of MC33567D-1R2G is from 2V to 28V. The voltage regulator can achieve an output voltage accuracy of ±0.5% and has a wide operating temperature range from -40°C to +125°C. It has an enable pin that allows the regulator to be on or off as needed. The enable pin also has a soft-start to reduce the inrush current.

The output voltage of MC33567D-1R2G is adjustable by an external voltage reference and by a resistor divider. The output current rating is up to 1.2A and it has an over-current protection feature. It also has over-temperature, under-voltage, and over-voltage protection circuits. The shutdown pin can be used to turn off the regulator when the power supply is not in use.

MC33567D-1R2G is designed to operate as a synchronous buck converter, where an external N-channel MOSFET is driven by the regulator. The MOSFET is a switching element that is used to convert the input voltage to an output voltage regulated by the regulator. The gate of the MOSFET is driven by an internal driver circuit that is controlled by an error comparator. The error comparator compares the external feedback voltage to an internal reference voltage and the output of the comparator is used to control the gate voltage of the MOSFET.

The MOSFET is switched on and off at a frequency determined by the current sense signal. The current sense signal is a voltage proportional to the current flowing through the MOSFET which is fed back to the regulator. The regulator uses this signal to adjust the switching frequency to keep the output current at the desired level. Furthermore, the regulator has an adjustable switch frequency feature which allows the user to adjust the switching frequency of the MOSFET in order to reduce input noise or control the efficiency of the power supply.

The MC33567D-1R2G is a versatile linear voltage regulator controller integrated circuit for use in dynamic voltage stepping-down applications. It has wide input and output voltage ranges, adjustable output voltage, adjustable output current, and protection features. It can be used as a synchronous buck converter in a wide range of applications such as battery powered devices, automotive applications, and Industrial equipment applications.

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