AUIPS7221R

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The AUIPS7221R is a power management integrated circuit (PMIC) used in applications where multiple voltages are required to be switched, loaded and stored simultaneously. The AUIPS7221R consists of an array of FETs and gate drivers, forming four independent power switches, three low impedance load drivers and a high voltage source. The AUIPS7221R is suitable for a wide range of applications, including digital/mixed signal and memory applications. Some of its features are as follows.

The AUIPS7221R has an on/off control input that enables low current ON/OFF switching for the four power switches. Each power switch is enabled by keeping the corresponding control input OPEN. When the FETs are OFF, no current flows, reducing power consumption and preventing shorts to power supply rails. The AUIPS7221R also has a single EN pin that enables the three low impedance load drivers and the high voltage source. When the EN pin is OPEN, all four switches are enabled and the high voltage source is available.

The low impedance load drivers allow the user to drive large currents with very little loss in the output voltage due to device voltage drop. As the load current increases, the voltage drop across the device increases, resulting in a decrease in efficiency. To compensate for this, the AUIPS7221R has an integrated current sensing circuit that senses the current in each load driver and adjusts the gate voltage accordingly. This allows the device to maintain the output voltage within a certain tolerance. Furthermore, the device has an over-temperature protection feature that prevents the device from overheating and damaging the integrated circuits.

The high voltage source on the AUIPS7221R is an ultra-low noise two-stage regulator with a nominal output of 8V. The output can be adjusted by external controlling pins. The two-stage regulator provides excellent settling times, high stability and good transient response. The high voltage source is ideal for large voltage supplies, such as those required in the automotive industry.

Overall, the AUIPS7221R is a great choice for applications where multiple voltage sources are required, such as digital/mixed signal and memory applications. Its low current ON/OFF switching, integrated current sensing, precise output voltage regulation and over-temperature protection make it an ideal power management solution for a variety of applications.

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