MAX8668ETEV+

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For many portable device applications, power management is key to ensuring the device lasts throughout a full charge. To manage power consumption the MAX8668ETEV+ is a highly integrated DC-DC converter that provides high-efficiency step-down voltage control while delivering multiple output currents. This device offers a wide range of output voltages, high efficiency, and low quiescent current.

The MAX8668ETEV+ provides a broad, adjustable output voltage range from 2.7V to 5.5V with an input voltage range of 1.8V to 5.5V. The output voltage is externally set with an external resistor divider connected to one of the device’s five external control pins. The output voltage is also adjustable via a single external resistor. The device also features an input current limit (ICL) function that sets the maximum input current for the device.

The MAX8668ETEV+ also features an internal current limit (IGL) function that sets the maximum output current for the device. It is adjustable by connecting an external resistor to one of the device’s five external control pins. The device also features a slew rate control to reduce output voltage overshoot during transition and a selectable output transition time.

The MAX8668ETEV+ integrates a low-noise fast-mode pulse-width modulation (PWM) control, which reduces noise and increases system-level efficiency. It uses an internal, high-efficiency PWM controller with a wide input voltage range, making it ideal for portable devices that need a fast, clean transition from standby to active mode. The device features an adjustable soft-start function, which reduces inrush currents during startup and provides ramp control for proper system loading.

The MAX8668ETEV+ also includes a number of features to improve the overall system-level performance. It features variable-frequency, spread-spectrum output overshoot control, which reduces system noise caused by switching frequency variations. In addition, it includes a thermal foldback protection to reduce power dissipation during overload conditions and over-temperature protection to prevent component and systems damage caused by high temperature.

The MAX8668ETEV+ is a highly integrated DC-DC converter that provides high-efficiency step-down voltage conversion and a range of adjustable output voltages, making it ideal for a variety of portable device applications. It features an adjustable output voltage, input current limit, and internal current limit functions, a slew rate control and soft-start function, a variable-frequency spread-spectrum output control, and thermal foldback and over-temperature protection. Its internal, high-efficiency PWM controller combined with its wide input voltage range makes it suitable for a range of power management applications.

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