MIC2183BQS

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The MIC2183BQS is a low voltage DC-DC power converter designed for portable Battery Powered Applications. It is a part of the MIC2183QS family of DC-DC switch controllers. The MIC2183BQS is an ideal choice for use in cell phones, cameras, PDAs and other handheld and portable devices where low power dissipation and low cost are key requirements.

The MIC2183BQS has an input voltage range of 2.2V to 7.0V. It is capable of providing up to 1.5A output current to a wide range of output voltage requirements. The MIC2183BQS provides a low-side synchronous switch employing a P-Channel FET, which has a peak duty cycle of 99% and a low on-resistance of 400mohm. The device also includes a single-stage linear Li+/NiMH battery charger for Li+/NiMH cells and a trickle charger for charging Li+/NiMH cells. It is designed to be used in applications where low power dissipation and low cost are key requirements.

The MIC2183BQS employs a control loop to regulate the output voltage. The loop operates by comparing the output voltage to an adjustable internal reference voltage. When the output voltage is too low, the controller will pull the switch node high to increase the output voltage. When the output voltage is too high, the controller will pull the switch node low to decrease the output voltage. This ensures that the output voltage remains constant over a range of input voltage and load conditions.

The MIC2183BQS is available in various packages, such as 9-Pin QFN (quad flat non-polarized). It has been designed to operate over an ambient temperature range from -40°C to 125°C. The MIC2183BQS also has a wide array of protection features, including Thermal shutdown of the converter and battery charging switch, short circuit protection for converter switch, overvoltage protection and battery over-negative protection.

The MIC2183BQS is the perfect choice for a wide variety of DC-DC converter applications, such as cell phones, cameras, PDAs, and other handheld and portable devices. It offers high efficiency, fast transient response, adjustable output voltage, low power dissipation, and low cost. The MIC2183BQS can also provide excellent results when used in battery-powered ideal diode applications and high current synchronous buck applications.

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