LT3688IFE#PBF

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LT3688IFE#PBF is a 5V, 0.2A, 4MHz, step-down DC/DC switching voltage regulator with synchronous rectification. It is a member of the LT3688IFE series from Linear Technology, which provides a range of products designed to make voltage regulation simple. The LT3688IFE#PBF is a high-efficiency, low-cost, low- noise DC-DC regulator that meets the needs of a wide variety of applications. LT3688IFE#PBF is suitable for a variety of applications, including computers, mobile phones, automotive and other portable devices.

Application Field

LT3688IFE#PBF is designed for medium-power regulator applications, it has a high efficiency of 5.5V to 3.3Vis 95%, and can deliver an output current of up to 0.2A. It includes output current and over-temperature protection, and offers high accuracy of ±2% output voltage. The LT3688IFE#PBF is ideal for many digital circuit applications because of its wide input voltage range from 4.75V to 36V, and can be used in many applications.

The high-efficiency, very low drop-outoperation of the LT3688IFE#PBF makes it a suitable choice for high-current mobile phones, automotive applications, and other low-power applications. The wide range of adjustable current-limit and output voltage makes it very suitable for power supplies such as USB or PCI Express. The LT3688IFE#PBF also provides aShutdown and Mode (EN) pin to improve the power saving features of any system.

Working Principle

The LT3688IFE#PBF is a step-down voltage regulator that works according to the single-inductor,synchronous-rectification(SLSR) design principle. This technology uses an integrated circuit(IC) thatinternally regulates the output voltage, and regulates the output current by synchronous rectificationthrough the control of low-side to high-side connected MOSFETs.

In addition to its power conversion efficiency, the LT3688IFE#PBF also offers a high output accuracy of ±2%. It is stable with a 22µF ceramic output capacitor and requires only a minimum of 10µF output ceramic capacitor for stability and ripple rejection. The LT3688IFE#PBF also has a wide range of adjustable current limits ranging from 0A to 150mA, allowing users to easily adjust the output current to their needs.

The LT3688IFE#PBF is a simple and reliable DC/DC switching voltage regulator. It offers a wide input voltage range, low drop-out, and high efficiency design. Its adjustable current-limit and output voltage makes it suitable for various applications such as mobile phones, automotive applications, and other low-power applications.

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