LMR23610ADDAR

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The LMR23610ADDAR is a synchronous step-down dc-dc converter which is designed for a wide range of applications. It is a high efficiency, low component count and low power solutions. This DC-DC converter can regulate output current or voltage during dynamic or steady state operation. The device also has an adjustable switching frequency and programmable output current foldback. It is power-managed by a short-circuit protected MOSFET.

The LMR23610ADDAR belongs to the PMIC (Power Management Integrated Circuits) family of Voltage Regulators, and is specifically classified under the DC DC Switching Regulators. It is ideal for applications such as voltages greater than 4V and step down to 1.2V to 3.3V.

The device operates with a wide input voltage range from 3V to 30V, which makes it suitable for a large number of applications. It also supports a programmable current limit, dynamic voltage scaling and thermal management. It also supports a wide switching frequency range from 200kHz up to 1MHz which makes it very suitable for high efficiency designs.

The working principle of LMR23610ADDAR is based on synchronous rectification. The device uses an internal low-side and high-side MOSFET connected at the switch node of the converter. When the converter is enabled, the high-side MOSFET is ON and the low-side MOSFET is OFF. The applied input voltage is then divided between the output voltage and the drain-source voltage of the MOSFET which is known as voltage drop. The voltage drop can be altered by changing the duty cycle of the MOSFET. As a result, the output voltage can be regulated.

The output voltage can also be detected by an internal error amplifier and feedback to the internal loop. When the output voltage of the regulator does not match with the reference voltage, the error amplifier will generate the duty cycle control signal for the MOSFET. The duty cycle is proportional to the deviation of the output voltage from the reference voltage. This is how the output voltage is regulated and the system precision is maintained.

In summary, the LMR23610ADDAR is a high efficiency, low component count step-down DC-DC converter which belongs to PMIC family of Voltage Regulators under DC DC Switching Regulators category. It is suitable for a wide range of applications, such as voltage greater than 4V and step down to 1.2V to 3.3V. It operates with a wide input voltage range from 3V to 30V and has a wide switching frequency range from 200kHz up to 1MHz. It also supports several features such as a programmable current limit, dynamic voltage scaling and thermal management. The device operates based on synchronous rectification and implements an internal voltage regulation loop to regulate the output voltage accurately.

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