MIC2800-G4KYML-TR

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The MIC2800-G4KYML-TR is a voltage regulator. Voltage regulators are a class of power management integrated circuit or PMIC that maintain a steady supply of voltage in a circuit or system. Broadly speaking, there are four categories of voltage regulators: linear, switching, LDO, and load switch. The MIC2800-G4KYML-TR is a Linear + Switching voltage regulator, a category of voltage regulator that combines the features of linear and switching voltage regulators - enabling it to provide more efficient voltage conversion than either type alone.

A linear voltage regulator operates like a two-terminal resistor, it limits the value of the output voltage by automatically adjusting the amount of current drawn from the input terminal.Linear voltage regulators are simple to design, are low cost and provide good regulation, however they suffer from becoming over-loaded which leads to the device drawing excessive current from the input, resulting in two major issues: power dissipated as heat in the device and the need for high wattage components to dissipate the heat. To overcome these issues, switching voltage regulators are utilized, adding complexity but also increasing efficiency by reducing power losses.

A switching voltage regulator utilizes energy or power-conversion techniques that means the switching regulator can dissipate less heat, be more efficient and are more adjustable than linear voltage regulators. However, switching voltage regulators inherently produce higher levels of electronic noise, leading to unpredictable and potentially dangerous behaviour in the circuit or system they are powering. The Linear + Switching voltage regulator capabilities of MIC2800-G4KYML-TR address this issue, providing an efficient and adjustable voltage regulator with the clean, low-noise outputs associated with linear voltage regulators.

The MIC2800-G4KYML-TR is a single-phase synchronous buck voltage regulator with an integrated high-side and low-side MOSFETs that drive the switching of the regulator. Voltage regulation is enabled by an internal control loop, which is used to monitor the output voltage and adjust the duty-cycle of the switch timing as necessary. The MIC2800-G4KYML-TR also features a low-noise linear regulator, which uses a combination of a voltage reference and an error amplifier to maintain a constant output voltage.

The MIC2800-G4KYML-TR is suitable for applications requiring a low-noise, efficient, adjustable voltage regulator such as battery powered systems and systems in which power efficiency is critical. The device combines the advantages of linear and switching voltage regulators and can thus deliver high efficiency and low noise levels, without compromising on accuracy.

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