MAX664CPA+

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MAX664CPA+ is a 60mV low dropout linear voltage regulator designed by Maxim Integrated Products. It provides excellent protection for power circuits and good regulation for automatic shutdown protection.

This regulator utilizes a single-stage series-pass linear regulator design; its output is capable of withstanding up to 8V differential. It uses a single N-channel enhancement mode MOSFET as its pass element, allowing it to achieve high performance while keeping power loss to a minimum. The assembly is completed with an internal precision bandgap reference, allowing it to offer stable output voltage tolerances under a wide variety of environmental conditions.

The MAX664CP+ is available in a space-saving SOT-23-5 package, offering excellent output voltage regulation in both AC and DC applications. Its low quiescent current makes it ideal for both low-power applications (such as low-dropout mobile phone switch mode) and for medium-power applications (such as switching between a low-voltage battery and a high-voltage systems were the power switch needs to be held).

In addition to the series-pass regulator design, the MAX664CPA+ also offers overload, over-temperature and undershoot protection. Its shutdown input is designed to force the regulator into a low power/high-impedance state, as well as preventing in-rush currents from prematurely draining the regulated output voltage on power-up. This output is tested to withstand up to 80V reverse transient conditions.

The MAX664CP+ is ideal for medium-power applications including voltage stabilization, voltage translation, power sequencing and battery charging. It is often used in car stereo systems and systems in which high output currents are required. The low dropout voltage of 60mV allows it to maintain high efficiency even at low output voltages.

The MAX664CPA+ is also very easy to use. It includes a shut-down input, as well as an on/off pin, which can be controlled by host processor or voltage reference. The off-mode current is low enough for momentary operation and allows the microcontroller to control the regulator state. This device also offers a wide input voltage range from 2.3V to 8.5V and output voltage range from 1.2V to 7V, making it very versatile and compatible with a variety of applications.

In summary, the MAX664CPA+ is an excellent voltage regulator solution that can handle medium power operations without sacrificing power performance. Its low dropout voltage, overload and over-temperature protection, and low quiescent current make it an ideal choice for systems that require efficient, reliable power control.

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