LT3487EDD#PBF

Overview

The LT3487EDD#PBF is a step-up DC/DC converter manufactured by Analog Devices, a leader in high-performance analog electronics. This IC is designed to efficiently convert a low input voltage to a higher regulated output voltage, making it suitable for battery-powered devices and other applications where power efficiency is critical. The LT3487EDD#PBF is housed in a compact DFN package, offering a balance of performance and space-saving design. With its integrated power switches and high switching frequency, the LT3487EDD#PBF simplifies circuit design while delivering reliable performance. It is commonly used in portable electronics, industrial equipment, and automotive systems where stable and efficient power conversion is required.

Structure and Working Principle

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The LT3487EDD#PBF operates as a step-up (boost) converter, utilizing a switching regulator topology to increase the input voltage to a desired output level. The IC includes internal power MOSFETs, reducing the need for external components and simplifying the overall design. Its high switching frequency (up to 1MHz) allows for the use of smaller inductors and capacitors, saving board space. The converter employs a current-mode control scheme, which provides excellent transient response and stability. It also features soft-start functionality to limit inrush current during startup, protecting both the converter and the load. The device is designed to operate over a wide input voltage range, typically from 2.6V to 16V, making it versatile for various applications.

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机械定时器转过头别慌！本文教你3步轻松复位，揭秘内部齿轮原理，分享防误转技巧，让定时器恢复精准计时。

Key Features

One of the standout features of the LT3487EDD#PBF is its high efficiency, which can reach up to 90% under optimal conditions. This efficiency is achieved through the use of synchronous rectification and low-loss internal switches. The IC also offers a wide input voltage range, accommodating various power sources such as single-cell lithium-ion batteries or multi-cell alkaline packs. Additional features include an adjustable output voltage, programmable soft-start, and thermal shutdown protection. The device's compact DFN package is designed for minimal thermal resistance, ensuring reliable operation even under high load conditions. These features make the LT3487EDD#PBF a robust choice for demanding applications.

Application Areas

The LT3487EDD#PBF is widely used in portable electronics, such as smartphones, tablets, and digital cameras, where efficient power conversion from a battery source is essential. Its ability to operate from a low input voltage makes it ideal for devices powered by single-cell lithium-ion or alkaline batteries. In industrial applications, the converter is employed in sensors, data loggers, and other low-power devices requiring stable voltage regulation. Automotive systems, including infotainment and navigation units, also benefit from the LT3487EDD#PBF's reliability and efficiency. Its versatility and performance make it a popular choice across multiple industries.

Maintenance and Precautions

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To ensure long-term reliability, proper thermal management is crucial when using the LT3487EDD#PBF. The device should be mounted on a PCB with adequate copper area to dissipate heat effectively. Additionally, the input and output voltage ranges should be strictly adhered to, as exceeding these limits can damage the IC. When designing the circuit, attention should be paid to the layout to minimize parasitic inductance and resistance, which can affect performance. Using high-quality external components, such as low-ESR capacitors and high-efficiency inductors, is recommended to maximize the converter's efficiency and stability.

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B2B Procurement Guide

When procuring the LT3487EDD#PBF, B2B buyers should consider the required quantity, lead times, and supplier reliability. Analog Devices and authorized distributors are the primary sources for genuine components. Pricing typically ranges from $3.50 to $5.00 per unit, depending on order volume and supplier. Buyers should verify the authenticity of the components, especially when sourcing from third-party vendors, to avoid counterfeit products. It's also advisable to check for compliance with industry standards and certifications, such as RoHS and REACH, to ensure environmental and safety compliance. Bulk purchases may qualify for discounts, so negotiating with suppliers can be beneficial.