ISL6402AIR

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The ISL6402AIR is a polyphase wafer-level voltage regulator specifically designed for use in mobile phones and other battery-powered portable systems. This voltage regulator is a polyphase integrated circuit (IC) with a linear regulator and a switching regulator, designed to provide power to the system’s core logic from the battery source. It is a highly integrated feature-rich regulator, combining both a linear and switching regulator in one integrated circuit. The linear regulator regulates voltage levels for low-current applications, such as the core logic, while the switching regulator switches its output voltage to step down the input voltage of the system.

The ISL6402AIR is a unique IC, in that it combines the linear regulator with a switching regulator. The linear regulator employs a proprietary Analog-To-Digital temperature compensation loop that allows it to maintain a constant voltage output when operating temperature changes. The switching regulator uses pulse width modulation (PWM) to switch the input voltage to the output voltage, providing a much higher power efficiency. The IC also includes current limiting and short circuit protection, as well as over-temperature protection.

The linear regulator works by comparing the input and output voltage. If the input voltage is higher than the output voltage, then the linear regulator will slow down and reduce the output voltage. If the input voltage is lower then the output voltage, then the linear regulator will speed up and increase the output voltage. The linear regulator works in a continuous manner, meaning that it does not switch on and off, and as such will maintain a constant voltage output even when the input voltage fluctuates. The use of Analog-To-Digital temperature compensation allows the linear regulator to maintain a stable output under varying temperature.

The switching regulator, on the other hand, works by constantly switching its output voltage to the input voltage. The switching regulator uses pulse width modulation (PWM) to switch the input voltage to the output voltage. This provides a much higher power efficiency than the linear regulator, and allows the output voltage to be accurately controlled, even when the input voltage fluctuates. The switching regulator also features current limiting and over-temperature protection.

The ISL6402AIR is a highly integrated voltage regulator that provides both linear and switching regulation in a single package. It uses a proprietary Analog-To-Digital temperature compensation loop and pulse width modulation (PWM) to switch the input voltage to the output voltage, allowing it to provide a much higher power efficiency than the linear regulator alone. The IC also includes current limiting and short circuit protection, as well as over-temperature protection.

The ISL6402AIR is a great choice for applications requiring both linear and switching regulation, such as in mobile phones or other battery-powered portable systems. Its unique combination of linear and switching regulation in one package provides the system designer with a cost saving solution to power the core logic from the battery source, while providing high efficiency and protection from power surges.

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