MIC38C42ABM

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MIC38C42ABM is a highly integrated monolithic power switching regulator designed for applications requiring multiple outputs in a very small package. It is a multi-step monolithic power converter with programmable output voltage, current limit, and soft-start. It is designed to provide 4 outputs at output voltages of 1.6, 2.5, and 3.3 V, with a maximum capability of 3A. The MIC38C42ABM is capable of driving either a synchronous or an asynchronous buck conversion topology.

The application field of the MIC38C42ABM includes DC-DC converters, battery-charging applications, and power supplies. This device was designed to simplify board layout and reduce the size of power supply systems by eliminating the need for multiple power supply components. MIC38C42ABM is versatile in that it has programmable output voltage ranges and several operating modes, and can be used for low output power applications with low power dissipation.

The working principle of MIC38C42ABM is based on the principle of switched-mode power supplies. It is a circuit composed of an active switch (usually a transistor) which is periodically switched on and off so that an voltage at a desired level can be maintained. The MIC38C42ABM utilizes an internal oscillator to create a switching signal at a frequency that is determined by the output voltage and the input voltage. When the switch is on, the current flows through the inductor and the output capacitor resulting in a consequent increase in the output voltage. When the switch is off, the current stored in the inductor is discharged through the load resulting in a consequent decrease in the output voltage. This cycle is repeated at the frequency determined by the oscillator, resulting in an output voltage that is constantly maintained.

In summary, the MIC38C42ABM is a multi-step monolithic buck-converter IC that offers multiple programmable output voltages and can be used in various industrial power applications. Its efficient operating principle and small size make it an ideal cost-effective solution for power applications.

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