AOZ1254PI

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The AOZ1254PI is a 4-phase synchronous buck DC-DC converter from Alpha & Omega Semiconductor. It is an updated version of the AOZ1254 family of voltage regulators that features ultra-low power dissipation, a wide input voltage range of 4.5V to 14V, and a fully-integrated 4 LFPAK package. The AOZ1254PI is well-suited for low voltage and space-constrained applications, such as servers, mobile phones, and tablets.

The AOZ1254PI is designed to regulate wide input voltages to supplying sub-1.2V power rails, with a maximum output current of up to 6A. The AOZ1254PI\'s main feature is its low power loss: it is capable of running from a minimum input voltage of 4.5V down to 0.5V. This means that the AOZ1254PI can operate at much lower voltages than other conventional voltage regulators.

The AOZ1254PI also features an adjustable switching frequency, programmable phase-shift, low EMI, high switching frequency, and a wide operating temperature range. These features make the AOZ1254PI an ideal solution for high-performance, highly reliable and low power applications.

The AOZ1254PI utilizes a 4-phase, pulse-width modulated (PWM) output switching regulator system. This system provides high frequency operation with low ripple and improved transient response. The internal synchronous PWM controller provides a constant frequency, switch dead time and minimum on time control, improving the efficiency and transient response over traditional voltage regulators. Additionally, the AOZ1254PI integrates many power management functions that provide system stability, including an adjustable output voltage soft-start, over-voltage/current protection, and thermal/overload/under-voltage protection.

The AOZ1254PI also comes with a few protection features. Thermal shutdown protects the device from overheating and over-current protection prevents damage from excessive outputs. The over-voltage protection monitors the input and output voltages, and cuts off the output when the voltage limit is exceeded. The AOZ1254PI also features a programmable soft-start to reduce inrush currents and startup noise.

Overall, the AOZ1254PI is an excellent choice for applications requiring a low input voltage and high output current, such as mobile phones, tablets, and portable devices. The AOZ1254PI offers robust features and high performance in a small and lightweight package. The AOZ1254PI is an ideal solution for space-constrained and high-efficiency systems.

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