LTC3374IUHF#TRPBF

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The LTC3374IUHF#TRPBF is a high performance synchronous step-down DC/DC switching regulator with an integrated power FET. This journey of discovery is about to explore the application field and working principle of the motor. Let’s begin with a brief introduction of this product.

The LTC3374IUHF#TRPBF is a high efficiency step-down constant frequency DC/DC switching regulator with an integrated power FET. It can offer up to 95% efficiency for universal AC battery sources and up to 97% efficiency for wide input voltage sources such as USB and 12V battery. It is optimized to support 2.6V to 24V input and output power of 2A continuous and 3.5A peak current. It is suitable for applications such as automotive, industrial and consumer, and most PMIC applications where efficiency is critical.

The LTC3374IUHF#TRPBF also features an extraordinarily low noise switching frequency of 1.25MHz, enabling the use of miniature 1μF ceramic output capacitors. This can significantly reduce board space and the need for large components.

Application Field

The LTC3374IUHF#TRPBF is suitable for a wide range of applications, from sub-GHz wireless applications to portable, automotive and industrial applications.

• It is suitable for sub-GHz wireless applications, such as Bluetooth, Wi-Fi, and Zigbee.
• It is suitable for automotive and industrial applications such as power supply replacements, general purpose controllers, etc.
• It is also suitable for portable applications, such as wearables, tablets, etc.

It can be used to replace multiple step-down regulators, DC/DC converters and battery chargers in space-constrained applications. This can significantly reduce board space and reduce the cost of fabrication.

Working principle

The LTC3374IUHF#TRPBF is designed to be cost-effective and easy to use. It utilizes a synchronous buck topology and can operate over a wide input voltage range. It is powered by an integrated power FET and uses a constant frequency current mode architecture to achieve fast transient response and low output ripple.

The motor works by converting a higher voltage input to a lower voltage output. This is done by switching the input voltage through an inductor to generate an output voltage via a power MOSFET. The output voltage is regulated by an internal error amplifier, which monitors the output voltage and modulates the power MOSFET duty cycle to maintain the output voltage at a desired level.

The LTC3374IUHF#TRPBF also features adaptive constant on-time control, which allows it to maintain high efficiency at light and heavy loads. The built-in output current limit, short-circuit protection, thermal shutdown, and over-voltage protection can ensure the stability of the output voltage and protect the load in case of accidental short-circuit or overload.

The LTC3374IUHF#TRPBF is an effective and efficient solution for DC/DC power supply, delivering high-quality performance with minimized noise and with high efficiency, best suited for space-constrained applications such as automotive, industrial and consumer.

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