MAX758ACWE+T

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The MAX758ACWE+T is a low-cost, low-voltage, step-down switching regulator that efficiently reduces 5.5V to 3.3V at up to 400 mA. This device has variable input range and includes long life, low-noise operator. Additionally, the MAX758ACWE+T all packaged in both a small 4-pin SOT23 package and an 8-pin SOIC package.

The MAX758ACWE+T is ideal for low-noise, general-purpose power applications in the consumer, industrial, and automotive markets. It is designed for use in mobile phone chargers, Li-ion/Li-polymer batteries, medical and healthcare portable products, small appliances, lighting equipment, and gaming systems.

MAX758ACWE+T Application Fields

The MAX758ACWE+T is a versatile and flexible switching regulator that can be used for numerous applications. These applications range from power conditioning and regulation to LED lighting and backlighting. This device can also be used for the conversion of AC to DC and DC to DC, allowing it to be used as a fast-charging adapter or as a battery charger.

The MAX758ACWE+T is also suitable for automotive applications, such as power conditioning, high efficiency battery monitoring, and system start-up. Additionally, the device is designed for use in battery operated portable equipment, including medical equipment and remote monitoring systems.

MAX758ACWE+T Working Principle

The MAX758ACWE+T is a step-down switching regulator that utilizes a buck topology with a synchronous rectifier. In the buck converter, the input voltage is regulated to a lower regulated output voltage by a power switch and an inductor. The power switch is the primary control element of the MAX758ACWE+T and is used to control the flow of power.

The power switch is either a metal-oxide-semiconductor field-effect transistor (MOSFET) or a bipolar junction transistor (BJT). The power switch is operated in either a linear or pulse-width-modulated (PWM) mode, depending on the application and the input and output voltages. The MAX758ACWE+T uses the PWM mode of operation by continuously operating the switch, allowing for high efficiency and a very fast response time.

The output voltage is regulated by the MAX758ACWE+T\'s voltage feedback loop. The voltage feedback loop constantly monitors the load voltage and adjusts the power switch duty cycle in order to keep the output voltage within a specified tolerance. The MAX758ACWE+T also has a proprietary TrickleCharge logic that provides fast and accurate charge and discharge control of battery operated systems.

Conclusion

The MAX758ACWE+T is a versatile, low-cost, and low voltage step-down switching regulator. Its application fields range from power conditioning and regulation to LED lighting and backlighting. It is also suitable for automotive applications, such as power conditioning, high efficiency battery monitoring, and system start-up. The MAX758ACWE+T is an ideal choice for low-noise, general-purpose power applications in the consumer, industrial, and automotive markets.

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