MAX730AESA+

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Maxim Integrated is one of the most widely respected semiconductor and integrated circuit (IC) companies in the world. Their MAX730AESA+ is a dual-phase synchronous buck converter for point-of-load (POL) conversion applications. It is a series of advanced start-of-the-art high-performance DC/DC switching regulators for low-power voltage regulation. It utilizes advanced technology that reduces noise and EMI, ensures both flexibility and reliability, which makes it an ideal choice for use in an array of applications.

Applications

The MAX730AESA+ can be found in various computing and telecom applications, including:

• High current servers, servers, power supplies
• Power supplies optimized for Intel P4/P8/P10 processors or AMD Athlon or Opteron processors
• Notebook PCs, LCD TVs
• Networking and communication system applications

The MAX730AESA+ is also suited for a wide range of portable applications, such as digital cameras, PDAs, and handsets. Its small size and high performance features makes it ideal for portable applications where power consumption needs to be considered a priority, such as in mobile phones, PDAs and other portable communications and multimedia devices.

Features

The MAX730AESA+ features a full-featured synchronous buck converter with two phases and three output voltage rails. It decreases switching noise and allows higher efficiency. It has a single coil and provides up to0.5A at up to 2 rails. As a single-channel, the MAX730AESA+ offers simple design and cost savings. It also features high conversion accuracy, fast transient response, full-featured protection and closed-loop regulation.

The MAX730AESA+ integrates an advanced startup circuit, allowing for a fast and reliable startup. It also offers a soft-start mode with a programmable soft-start time, adjustable spread spectrum to reduce EMI, as well as short protection, overtemperature protection, undervoltage protection and overvoltage protection. This makes it an ideal choice for use in an array of applications.

Working Principle

The MAX730AESA+ utilizes two individual blocks: a dedicated power supply and a separate switching regulator control block. The dedicated power supply provides the main power source to the switching regulator control block, while the control block is responsible for controlling the on-off states of the main power source. In this way, the power supply is able to generate the required output voltage and current at the output terminals of the device.

The MAX730AESA+ also utilizes an internal configuration algorithm to determine the on-off transitions of the device. It constantly monitors the output voltage and adjusts the voltage regulation appropriately. This reduces the noise generated by the switching activities, ensures high efficiency and ensures the device is reliable and robust. In addition, the MAX730AESA+ offers a low-ripple, low-noise input/output cycles for improved system performance and stability.

Conclusion

The MAX730AESA+ from Maxim Integrated is a dual-phase synchronous buck converter for PO/OL applications. It is an advanced start-of-the-art high-performance DC/DC switching regulator with a full range of features, including a dedicated power supply, a separate control block, fast startup and a range of protection features along with adjustable soft-start, spread spectrum and short protection options. Its small size and high performance features make it ideally suit for a wide range of portable applications, such as digital cameras, PDA and handsets. Furthermore, its advanced technology reduces noise, EMI and ensures both flexibility and reliability, making it an ideal choice for various computing and telecom applications.

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