S-8521B40MC-ATZT2G

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The S-8521B40MC-ATZT2G is an adjustable switching voltage regulator from the PMIC - Voltage Regulators - DC DC Switching Controllers series. It is designed to regulate the output voltage of a buck DC power supply that operates from a wide input voltage range between 2.5V and 5.5V. The device features a drive transistor, switching FET, and an adjustable output voltage from 0.95V to 5.5V.

The S-8521B40MC-ATZT2G uses pulse-width modulation (PWM) for better regulation and fast transient response. It is designed to operate continuously at a switching frequency up to 720 kHz and is capable of providing up to 2.2A of output current. With low standby control current (1.25 mA typical at 10% load) and built-in soft-start and track/adj circuitry, the S-8521B40MC-ATZT2G is ideally suited for space-constrained, cost efficient designs.

This solution has a wide range of applications, ranging from battery-powered systems to high-power systems such as automotive and industrial. It is also suitable for powering up small handheld devices such as mobile phones and tablets. Moreover, the S-8521B40MC-ATZT2G is designed to provide a low noise output voltage in presence of heavy load changes.

At a fundamental level, the S-8521B40MC-ATZT2G works by using an On/Off switch to regulate the power output of the power supply. It includes two primary components that make up the switching controller, a voltage comparator, and an oscillator. The voltage comparator compares the voltage produced by the power supply to the reference voltage and produces output signals based on the difference between the two. The oscillator is configured to generate an oscillating voltage signal at the desired switching frequency. This signal is used to control a power switch, which turns the power supply on and off to regulate the output voltage.

The S-8521B40MC-ATZT2G also features several other features to help optimize the performance and reliability of the power supply. It has internal soft start and dynamic control switching, as well as over-current protection and thermal protection. These features ensure that the power supply is always running safely and reliably at an optimal performance level.

Overall, the S-8521B40MC-ATZT2G is ideal for use in a variety of applications due to its wide range of features and adjustable output voltage. It is highly efficient, provides a low noise output, and is capable of providing up to 2.2A of output current. The device is well-suited for a variety of applications ranging from battery-powered systems to high-power systems and is sure to be a welcome addition to any design.

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