AOZ1240AI

AOZ1240AI Application Field and Working Principle

The AOZ1240AI is a PMIC controller intended to be used by DC-DC switching regulators. It is ideal for applications requiring a low solution cost, low quiescent current, and fast transient response. The AOZ1240AI device is specifically designed to optimize the performance and integration of key components in a complete DC-DC switching regulator.

Application Fields

• Power Management for FPGA, DSP, and ASIC devices
• Battery Charger and Boost Applications
• Power over Ethernet (PoE) systems
• Power on Reset (POR) circuits
• Servers, PCs, and Systems-on-Modules

Working Principle

The AOZ1240AI is a non-synchronous switching regulator controller solution. It includes in-package integrated voltage reference and compensator that reduces component count while minimizing the noise sensitivity and improving system performance. It also includes an integrated power switch and an internal gate driver to reduce component count. The device’s internal comparator and oscillator provide fast-loop converging response. The current-mode control architecture offers fast transient response along with excellent line and load regulation. The frequency of the AOZ1240AI is adjustable, enabling the design of a low component-count, low cost, and low noise solution.

The AOZ1240AI contains several built-in protections to enhance system safety and reliability. These include an adjustable overvoltage (OVP) protection, adjustable overcurrent protection, trimmed output over-temperature protection and soft-start/hiccup restart. These features minimize component count, reduce system cost and minimize additional external parts, significantly enhancing design simplicity.

Conclusion

In summary, the AOZ1240AI is an ideal PMIC controller solution for use with DC-DC switching regulators. With its integrated components and built-in protections, this device can provide a low cost, low noise, and efficient power management solution for a wide range of applications.