AOZ2264QI-10

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AOZ2264QI-10 Application Field and Working Principle

AOZ2264QI-10 is a highly efficient and advanced DC-DC switching regulator from the PMIC-Voltage Regulators-DC DC Switching Regulators family. It was developed by Alpha and Omega Semiconductor, Inc. and is ideally used for efficient power management of portable electronics, such as smartphones, tablets, and handheld gaming consoles. The AOZ2264QI-10 offers high efficiency, high current capability, and excellent thermal performance.

The AOZ2264QI-10 is designed to deliver high efficiency, very low output ripple, and wide input voltage flexibility, over a wide range of operating conditions. It provides a very compact yet powerful solution for power management applications. The device accepts input voltage range from 4.5V to 22V and can deliver an output voltage up to 600mV. The device features a programmable switching frequency, up to 2MHz, which allows for maximum efficiency under different loading and operating conditions. The AOZ2264QI-10 also offers internal compensation for stable operation over a wide range of output loads.

In addition to its highly efficient performance, the AOZ2264QI-10 also offers a variety of protection features, including over-current protection, over-voltage protection, under-voltage lockout, over-temperature protection, short-circuit protection, and vcc under-voltage lockout. These features ensure reliable and safe operation of the device, even in the harshest operating conditions.

The AOZ2264QI-10 employs a synchronous buck switching architecture with two power switches, an internal N-channel MOSFET and an internal P-channel MOSFET. The two switches are arranged in a totem-pole configuration with the N-channel switch powering the load and the P-channel switch providing extra current capacity to the load. The integrated switches enable reduced power losses compared to external MOSFETs, resulting in higher efficiency and lower total cost of the solution.

The AOZ2264QI-10 offers an on-board voltage loop compensation network and a low-pass filter, which enables faster loop time and better transient response. The device integrates an internal under-voltage lockout (UVLO) circuit which is enabled by an external pull-down resistor. The device also provides a programmable soft-start function, which can be used to control the acceleration at startup. The on-board off-time time circuit limits the minimum on-time of the internal switches and prevents bouncing, ensuring stable operation and reduced electro-magnetic interference.

The AOZ2264QI-10 boasts several other features and performance parameters, enabling an optimal solution for a wide range of applications. The device features an integrated over-current protection function, which monitors the output current and protects the system from damage in case of a fault condition. The integrated over-temperature protection function monitors the power switch temperature and shuts down the device in case of overtemperature, thus preventing damage to the device and system.

The AOZ2264QI-10 provides excellent thermal performance, enabling a wide operating temperature range, from -40°C to 125°C. The device is designed to operate over a wide range of input and output voltages, with ripple rejection up to 90dB at fixed frequencies and up to 80dB at dynamic frequencies. The AOZ2264QI-10 also delivers up to 95% efficiency and up to 2A switching current.

The AOZ2264QI-10 offers a low profile package design, which is ideal for high-density designs and space saving applications. The device is compliant with the RoHS directive and is lead-free.

In summary, the AOZ2264QI-10 is a high-performance, high efficiency DC-DC switching regulator from the PMIC-Voltage Regulators-DC DC Switching Regulators family. The device offers excellent performance, protection features, and wide operating temperature range, enabling maximum performance under various conditions. Its advanced features, together with its low profile package design, make it an ideal solution for power management applications in portable electronics.

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