LTC3407AEDD-2#TRPBF

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PMIC – Voltage Regulators – DC DC Switching Regulators span a wide variety of applications from low-power mobile devices to large multi-output server applications. The LTC3407AEDD-2#TRPBF is a high-efficiency, low-noise, monolithic synchronous switching regulator capable of delivering up to 15A of output current. The device is available in a variety of voltage ratings, making it a great option for a wide range of applications. In this article, we will discuss the application field and working principle of the LTC3407AEDD-2#TRPBF.

Application field

The LTC3407AEDD-2#TRPBF is ideal for a wide range of applications. It is well-suited for powering various types of single-cell Li-ion battery-based systems, including mobile devices, PDAs, and digital cameras. The device is also capable of powering a variety of small to medium-sized standard AC/DC adapters up to 250W. It has been designed to directly interface with a variety of power sources such as small batteries, large batteries, and AC/DC adapters.

The LTC3407AEDD-2#TRPBF can provide up to 15A of output current and up to 20V of output voltage. This makes it a great option for powering various types of high-current, high-power devices such as servers, storage devices, and medical equipment. Additionally, the device is capable of delivering tight regulation for both voltage and current, which makes it a great option for powering sensitive electronic components.

The device is designed with dynamic frequency scaling, allowing it to run at the highest frequency possible while consuming the least amount of output power. This makes it an ideal choice for applications requiring low-power operation, such as wearables and other battery-powered devices. The device is also available in a variety of package sizes and footprints, making it a great option for tight-space applications.

Working Principle

The LTC3407AEDD-2#TRPBF is a synchronous step-down DC-DC converter with a feedback loop. It uses an external synchronous pulse width modulation (PWM) signal to regulate the output voltage and current. The device utilizes an internal high-side/low-side MOSFET switch structure and a control system to achieve a low-noise, high-efficiency voltage conversion.

The device has dedicated pins for the PWM signal, ground and 45V supply, enabling it to directly interface with a variety of AC/DC adapter designs. The device also has two built-in low-dropout linear regulators, enabling the use of a single resistor divider for both the PWM and the output voltage regulation.

The LTC3407AEDD-2#TRPBF uses a fixed 3.3V reference voltage to generate a feedback signal for the PWM, as well as an adjustable converter operating frequency to improve efficiency. The built-in frequency spreading feature enables the device to spread the switching frequency over an adjustable range to reduce electromagnetic interference (EMI).

The device is available in a low-profile 3x3mm 16-pin and 5x6mm 32-pin QFN packages, making it well-suited for space-constrained applications. The device also features a flexible power-good threshold input, enabling the user to select the optimal threshold voltage for their application.

The LTC3407AEDD-2#TRPBF offers a great combination of features and performance in a highly compact package. It is an ideal choice for a wide range of applications, including mobile devices, PDAs, digital cameras, servers, storage devices, and medical equipment.

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