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MAX15001BEUB+ Application Field and Working Principle

The MAX15001BEUB+ voltage regulator is a high-performance, integrated, two-phase synchronous step-down DC-DC switching controller designed for use in power converters up to 90A of continuous output current. This regulator integrates a wide range of functions and features including dual input voltage monitoring, precision enable, fault-signaling and protection features, dedicated POR comparator, a zero-current feature, a dead-time generator, and a programmable PWM controller.

Application Field

The MAX15001BEUB+ voltage regulator is ideal for use in high-current, high-density computing, networking, and telecommunications applications. It can be used in a variety of systems including enterprise, power management, VoIP, server, and storage systems that require high current output regulation. The MAX15001BEUB+ is ideal for use with 12V, 24V, and 48V power inputs, with up to 90A of continuous output current for maximum efficiency and performance.

Working Principle

The MAX15001BEUB+ voltage regulator employs a two-phase synchronous step-down DC-DC controller that provides high-efficiency control for synchronous buck converters. This controller achieves efficiencies of up to 95% with forced-continuous output current up to 90A and supports up to 0.5MHz switching frequency. The internal phase-locked loop (PLL) synchronizes the PWM signals of the two phases and eliminates the need for phase-shift circuitry, while the precise loop frequency prevents over-modulation and allows for very precise output voltage regulation. To reduce power losses, the MAX15001BEUB+ features a zero-current feature which shuts off all low-side switchesp when load current is below a programmed threshold.

The MAX15001BEUB+ voltage regulator also offers a wide range of protection features including under-voltage lockout, over-temperature, over-current, current limit, and programmable cycle-by-cycle current-limiting. This regulator also includes a dedicated power-on-reset comparator that ensures proper system reset when the input voltage exceeds preset thresholds.

Conclusion

The MAX15001BEUB+ voltage regulator is a high-performance, integrated, two-phase synchronous step-down DC-DC switching controller. It offers high-efficiency control for synchronous buck converters up to 90A of continuous output current, and is ideal for use in high-current, high-density computing, telecommunications, and other applications. This regulator also includes a wide range of protection features, a POR comparator, and a zero-current feature to ensure reliability and reduce power losses.

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