MAX771EPA+

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The MAX771EPA+ is a DC-DC switching controller optimized for notebook CPU and GPU power supply design. It is part of an advanced digital and analog comprehensive power management system that is capable of providing and controlling multiple power rails with the highest efficiency and accuracy. The device features an integrated SMBus and I²C interface, allowing system designers to control and monitor power rails through easy to use software interfaces. As part of the analog-to-digital mixed-signal power management system, the MAX771EPA+ helps to ensure a reliable and power-efficient system with minimal component count and outstanding design flexibility.

The MAX771EPA+ operates with input voltages ranging from 3.3V to 24V, enabling the device to be used in a wide range of applications, from general-purpose power management to automotive, industrial, medical, and military applications. As an integrated product, the MAX771EPA+ eliminates the need for a large number of discrete components, reducing circuit complexity and component count.

The MAX771EPA+ has a multi-mode internal switching regulator, allowing designers to select between Pulse Width Modulation (PWM) mode or Ramp modulation (RM) mode based on their application needs. The device also features an Enhanced Cycle-by-Cycle Current Limit that allows designers to easily program the current limit level to prevent the device from entering into the latch-off state. The MAX771EPA+ also includes a low-ripple Burst Mode Control (BMC) feature, allowing the device to operate at very low ripple while still maintaining high efficiency. The device also includes a very low quiescent current in shutdown mode.

The MAX771EPA+ has many configurable parameters for its operation, including peak current limit, output voltage, switching frequency, soft-start time, and more. This allows designers to tailor the device to their particular application, ensuring more performance and improved efficiency. The device also offers a slew rate limiting feature for improved output regulation.

The MAX771EPA+ uses a single external P-channel MOSFET switch, eliminating the need for additional components, thus reducing cost and PCB size. The device also includes an integrated over-temperature protection circuit that is triggered when the die temperature exceeds a specified level. This ensures safe operation as well as protection against system failures.

With its wide input voltage range and integrated features, the MAX771EPA+ is a cost-effective and efficient solution for power management in notebook CPU and GPU applications. The device’s flexibility and configurability guarantees that the voltage regulation will meet the highest accuracy and efficiency levels. The device is also RoHS compliant and comes in a 6-pin UMLP-6 package.

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