MIC33050-CYHL-TR

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MIC33050-CYHL-TR Application Field and Working Principle

The MIC33050-CYHL-TR is a switching regulator from the family of PMIC—Voltage Regulators—DC-DC Switching Regulators. It is a high voltage, low noise, and low quiescent current device that can be used for both step up or step-down conversions. It is capable of supporting up to a maximum of 4A load current, essentially eliminating the need for external power transistors.

Features

The MIC33050-CYHL-TR comes with several exclusive features including its synchronization capability, selectable switching frequency and load regulation, programmable under and overvoltage protection, precise current limit, and thermal protection. It also features synchronous rectification and is capable of providing constant output current up to 93% peak efficiency.

Applications

The MIC33050-CYHL-TR is suitable for a variety of applications requiring an efficient, precise, and regulated power supply, such as in telecom and medical equipment, AC/DC adapters, LED drivers, network systems and POE systems.

Working Principle

The MIC33050-CYHL-TR operates as a switching regulator to convert an input voltage to a desired output voltage. It combines an N-MOSFET and a P-MOSFET in a Push-Pull topology, which helps achieve excellent efficiency and fast transient response.

The MOSFETs are switched at a resonant frequency that is determined by the load and input voltage. The output voltage can be precisely regulated by manipulating the switching frequency. The alternating current generated at the output is then rectified and smoothened before reaching the load.

The selected switching frequency can also be synchronized to an external clock source for further optimization of efficiency. In addition, the MIC33050-CYHL-TR is also equipped with an on-board linear regulator to take over during light load conditions, reducing noise and power dissipation.

The MIC33050-CYHL-TR also incorporates several integrated protection features to prevent the circuit from being damaged by overloads and short circuits. These features include overvoltage protection and thermal shutdown.

Summary

The MIC33050-CYHL-TR is a switching regulator from the family of PMIC—Voltage Regulators—DC-DC Switching Regulators. It is a high voltage, low noise, and low quiescent current device that can be used for both step up or step-down conversions. Its features include synchronization capability, selectable switching frequency and load regulation, programmable under and overvoltage protection, precise current limit, and thermal protection. It is suitable for applications requiring an efficient, precise, and regulated power supply and operates by combining an N-MOSFET and a P-MOSFET in a Push-Pull topology and then rectifying the alternating current generated at the output before reaching the load. It also comes with integrated protection features to prevent the circuit from being damaged by overloads and short circuits.

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