AOZ1037PI-01

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AOZ1037PI-01 is a DC-DC switching regulator designed specifically for Point Of Load (POL) applications. It is an advanced, efficient, and low-noise POL regulator solution. It has low quiescent current, high conversion efficiency and fast transient response, which makes it ideal for use in applications where power supply noise, efficiency and space are crucial.

The AOZ1037PI-01 is a pulse-width modulation (PWM) buck regulator which can switch a current up to 4A. It provides two output voltage range: 0.9V to 5.5V and 3.3V to 12V. It is designed to maintain its output voltage accuracy under various load conditions. The AOZ1037PI-01 utilizes a synchronous rectifier topology to achieve high operating efficiency. The conversion frequency of 900kHz comprises of a range of 500kHz to 2MHz. The device also features adjustable soft-start duration and dynamic skip mode to reduce dynamic output voltage distortions.

This device integrates an adjustable switching frequency, synchronous rectification, an internal soft-start, dynamic skip mode and adjustable under-voltage lockout (UVLO) into one highly integrated solution. It also has an array of safety features such as over-temperature protection, over-current protection and output over-voltage protection.

The typical application of the AOZ1037PI-01 is for point of load power applications, such as telecom- and datacom-related components, processor cores and main systems for loading voltage requirements. It is ideal for use in portable and small form factor designs where space is a precious commodity. It is also suitable for powering high-performance imaging, audio and video systems, low-power LEDs, and general-purpose voltage regulation applications.

The AOZ1037PI-01’s working principle is based on the PWM technique. During each switching cycle, the device will compare the output voltage feedback signal with a fixed threshold voltage. This information is used to generate a PWM signal that is used to control the output voltage. The output voltage is then adjusted by modulating the duty cycle of the PWM signal. A built-in digital soft-start and load line compensation circuit ensures the output voltage stability and reduces the inrush current. On-the-fly digital frequency dithering adds further noise reduction. A synchronous buck topology is used to obtain maximum efficiency, low external component count, and small footprint.

In summary, the AOZ1037PI-01 is a highly integrated dc-dc switching regulator specifically designed for point of load applications. It is a pulse-width modulation controller with an adjustable switching frequency and wide input and output voltage range. It is ideal for use in high-performance imaging, audio and video systems, low-power LEDs, and general-purpose voltage regulation applications. It features low quiescent current, high efficiency, fast transient response, adjustable soft-start, dynamic skip mode and adjustable under-voltage lockout features.

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