MAX8667ETEAA+

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A MAX8667ETEAA+ is a linear and switch mode voltage regulator from Texas Instruments. It is a step-down DC to DC converter which is tailored for providing output power for high side voltage, output current and accuracy. MAX8667ETEAA+ is utilized in various portable battery powered devices and applications. It is also available in an ultra-small orthogonal package.

The MAX8667ETEAA+ offers a wide input voltage range of 2.5 V to 5.5 V and an output voltage range of 0.6 V to 4.6 V. The output current is rated up to 2 A. Moreover, the device is thermally enhanced to protect operation at high ambient temperatures and the device shut down. Remarkably, the device has an excellent power efficiency of up to 94% when used with the battery.

The device operates in two modes. When operating in linear mode, a light-load operating current of 8uA is achieved as a result of the low quiescent current consumption. When operating in pulse width modulation (PWM) mode, the switching increases power efficiency and offers a high level of protection against current overload and short circuit conditions. In addition, the MAX8667ETEAA+ has a slew rate of 250mV/us, enabling it to prevent output voltage glitching during switch transitions, especially useful in noise sensitive applications.

The most common use of the MAX8667ETEAA+ is typically in mobile devices. This is due to its wide input voltage range, high efficiency and low quiescent current consumption. It can be used to provide battery power for cell phones and PDAs, where a low quiescent current consumption and efficient operation are desirable.

The MAX8667ETEAA+ also provides a high level of system protection. A plethora of protection features is built into the device. It includes thermal shutdown, overvoltage, undervoltage, overcurrent, short circuit, current limit protection, and others.

In addition, the device has integrated loop compensation circuitry. The internal compensation circuitry controls the error amplifier and loop compensation. By setting the loop gain at certain places, the converter regulates the output voltage precisely with fast transient response.

The MAX8667ETEAA+ is one of the most popular and efficient linear and switching mode voltage regulators available. It provides wide range input and output voltages, high efficiency and low current consumption, high-level protection, and built-in loop compensation. Ideal applications are mobile devices such as cell phones or PDAs, or any device where a small, low quiescent current, and an efficient regulator is desired.

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