LM2576TV-ADJ

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LM2576TV-ADJ Application Field and Working Principle

LM2576TV-ADJ is an adjustable DC DC switching regulator leading the way in the power management Integrated Circuit (PMIC) market. Designed to replace linear regulators, LM2576TV-ADJ can deliver up to 1.5A of output current with a wide input voltage range of up to 42V DC. The LM2576TV-ADJ is designed for power supply applications requiring the highest voltage accuracy and current capabilities. This device is perfect for applications that require tight regulation and max power delivery such as battery-powered devices and power supplies.

Recognized as a leader in the PMIC - voltage regulators - DC DC switching regulators market, LM2576TV-ADJ features adjustable output voltage from as low as 1.23V to as high as 37V. Its fast transient response makes it capable of efficiently delivering power to highly sensitive digital systems. The device also has an internal Buried Zener Reference for improved stability, an internal Current Limiting circuit and a logic shutdown input that allows for standby power savings.

The LM2576TV-ADJ works by switching the duty cycle of a hypersonic oscillator which feeds into a power MOSFET. This oscillator runs at twice the desired output frequency and switches current through the MOSFET accordingly. This “Switched Mode” operation reduces the size of the components and increases efficiency by reducing the required parts. When the input voltage is lower than the output, the duty cycle is modulated to draw more current with lower voltage in to ensure a constant output voltage.

The LM2576TV-ADJ is programmable with an external resistor and is capable of driving a range of external loads from a single output source. Its competition-beating features, such as input voltage protection, noise reduction and overload protection, makes it perfect for highly demanding applications such as LED drivers, medical devices and audio systems. The device also features thermal shutdown for extra protection for the system.

In sum, the LM2576TV-ADJ offers superior performance in a variety of power supply applications that require high efficiency, accurate output and tight regulation. Its range of features make it the ideal choice for PMIC - voltage regulators - DC DC switching regulators applications. With an adjustable output voltage and high current capabilities, the LM2576TV-ADJ is the perfect solution for a variety of power needs.

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