MAX8650EEG+T

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The MAX8650EEG+T is a member of the latest Power Management IC (PMIC) family of Voltage Regulators, specifically the DC-DC Switching Controllers. The device integrates switching power regulation function, as well as intelligent power management scheme, which can provide improved power efficiency and reduced noise. This article aims to look at the application field and working principle of the MAX8650EEG+T.

The MAX8650EEG+T is ideal for power-sensitive applications in the embedded space such as mobile- and fee-based gaming systems, GPS, portable media players and PMPs and other communication devices. The device features high switching frequencies up to 2MHz, which permits the use of tiny components in the board design to save board space. Additionally, it provides various advanced features such as programmable output voltage, high power conversion efficiency, and thermal foldback.

The MAX 8650 EEG+T allows designers to create an extremely low noise power solution by implementing the elimination of the “nasty noises”. It also helps maintain a low EMI profile by eliminating LC filtering and using a programmable phase shift to control the peak current of the output. This offers an improved power efficiency and reduced noise power compared to traditional non-integrated power solutions.

The working principle of the MAX8650EEG+T relies on its integration of a high voltage buck controller and a low voltage boost controller. The buck controller supplies the processor with a DC bias voltage during its start-up phase, and the boost controller delivers a set of DC switching signals to the inductor for noise-free operation. The device also features switch current-mode control, which provides a high level of transient response, even at very low frequency. This enables system designers to achieve high switching efficiency and reduced noise.

The device also utilizes a high voltage synchronous buck/boost with a 2MHz switching frequency and 0.35V to 5.5V input voltage range. It also provides high power conversion efficiency of up to 94%. The MAX8650EEG+T also supports a wide range of output voltages, up to 37V, and low output noise, making it ideal for mobile communication applications.

TheMAX8650EEG+T also provides several other advanced features such as programmable phase shift and frequency control. It also supports several protection features, including output overvoltage protection and over-current protection. It also supports power on/off sequencing and thermal foldback to improve power efficiency and prevent over-temperature condition.

In conclusion, the MAX8650EEG+T is a versatile and high-performance switch-mode DC-DC controller, making it ideal for power sensitive applications in embedded space such as mobile and fee-based gaming systems, GPS, portable media players and PMPs, and other communication devices. It features high switching frequencies, high power conversion efficiency, and low noise, allowing system designers to achieve improved power efficiency and performance.

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