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LTC3440EDD

产品分类: DC-DC稳压器
厂牌: ANALOG DEVICES
产品描述: Buck-Boost Yes 300KHz~2MHz Adjustable 1 5.5V 2.5V 5.5V 2.5V DFN 贴片安装 3mm(长度)*3mm(宽度)
供应商型号: CY-LTC3440EDD
供应商: Avnet
标准整包数: 1
ANALOG DEVICES DC-DC稳压器 LTC3440EDD

LTC3440EDD概述

    Introduction to the LTC3440 Micro-power Synchronous Buck-Boost DC/DC Converter
    The LTC3440 is a high-efficiency, fixed-frequency micro-power synchronous DC/DC converter that operates efficiently over a wide input voltage range, including both above and below the output voltage levels. It is designed to support input voltages between 2.5V and 5.5V, making it highly versatile for applications such as portable devices like palmtop computers, handheld instruments, MP3 players, and digital cameras. Its key feature is the ability to seamlessly handle input voltages both higher and lower than the output voltage, ensuring consistent performance across varying power sources.
    Technical Parameters
    | Parameter | Typical Value | Units |
    |
    | Fixed Frequency | 300kHz to 2MHz | Hz |
    | Output Voltage Range | 2.5V to 5.5V | Volts |
    | Quiescent Current (Burst Mode)| 25µA | Microamps |
    | Shutdown Current | <1µA | Microamps |
    | Efficiency | Up to 96% | Percentage |
    | Output Ripple | <40mV | Volts |
    | Package Type | 10-Lead MSOP & DFN
    Product Features and Advantages
    The LTC3440 offers several unique advantages that make it stand out in its class:
    1. Synchronous Rectification: With efficiencies reaching up to 96%, it significantly extends battery life.
    2. Low Quiescent Current: In burst mode, it consumes only 25µA, optimizing power usage.
    3. Wide Operating Range: It operates smoothly between 2.5V and 5.5V input and output voltages.
    4. Compact Design: Available in small 10-pin MSOP and 3mm x 3mm DFN packages, it facilitates easy integration into space-constrained designs.
    Application Case Studies and Usage Recommendations
    The LTC3440 is ideal for applications requiring stable and efficient power management. For instance, in portable medical devices, it ensures uninterrupted power supply even during low-battery conditions. In consumer electronics like smartwatches, its minimal power consumption is crucial for extending battery life. When using the LTC3440, it's recommended to carefully match the external components to the IC specifications to maximize efficiency and stability.
    Compatibility and Support
    The LTC3440 is fully compatible with standard ceramic capacitors and inductors, ensuring seamless integration into existing designs. Linear Technology (now part of Analog Devices) offers comprehensive technical support and documentation, including application notes and evaluation kits, to assist users in designing optimal power solutions.
    Common Issues and Solutions
    1. Voltage Ripple: If output voltage ripple is excessive, ensure proper selection of output capacitors and inductors.
    2. Overheating: Monitor ambient temperatures; use heat sinks if necessary.
    3. Insufficient Output Current: Verify that the inductor value matches the application requirements and consider using external Schottky diodes.
    Conclusion and Recommendation
    The LTC3440 stands out as a robust and efficient solution for applications demanding high efficiency and minimal power consumption. Its advanced features, including synchronous rectification and programmable oscillator frequency, make it a top choice for portable electronics. Overall, the LTC3440 is highly recommended for designers looking to optimize power delivery in compact, low-power devices.
    Final Recommendation: Highly Recommended for Use
    For further information and detailed specifications, visit [Linear Technology's website](www.linear.com/LTC3440).

LTC3440EDD参数

参数
同步整流器 Yes
输出数量 1
功能 Step-Down,Step-Up
最大输入电压 5.5V
输出类型 Adjustable
最小输入电压 2.5V
开关频率 300KHz~2MHz
最小输出电压 2.5V
拓扑 Buck-Boost
最大输出电压 5.5V
长*宽*高 3mm(长度)*3mm(宽度)
通用封装 DFN
安装方式 贴片安装
零件状态 在售
包装方式 散装

LTC3440EDD厂商介绍

Analog Devices(简称ADI)是一家全球领先的半导体公司,专注于模拟、混合信号和数字信号处理(DSP)集成电路(IC)的设计、制造和营销。公司成立于1965年,总部位于美国马萨诸塞州的诺伍德。

ADI的主营产品主要分为以下几类:
1. 数据转换器:包括模数转换器(ADC)和数模转换器(DAC),广泛应用于通信、工业、医疗等领域。
2. 放大器和比较器:提供各种高性能放大器和比较器产品,用于信号放大、滤波和比较等。
3. 射频(RF)和微波产品:包括射频收发器、混频器、放大器等,应用于无线通信、**等领域。
4. 电源管理:提供电源转换、电源管理等解决方案,满足各种电源需求。
5. 接口和通信:包括以太网、串行通信等接口产品,用于数据传输和通信。
6. 处理器和DSP:提供高性能处理器和数字信号处理器,用于复杂信号处理和控制。

ADI的优势在于其在模拟和混合信号领域的深厚技术积累,以及对客户需求的深刻理解。公司不断推出创新产品,满足客户在各种应用场景下的需求,如5G通信、自动驾驶、工业自动化等。此外,ADI还提供全面的技术支持和定制化服务,帮助客户实现产品快速上市。

LTC3440EDD数据手册

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ANALOG DEVICES DC-DC稳压器 ANALOG DEVICES LTC3440EDD LTC3440EDD数据手册

LTC3440EDD封装设计

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价格梯度 中国香港交货 内地交货(含增值税)
1+ $ 3.5087 ¥ 26.2896
库存: 713
起订量: 39 增量: 1
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合计: ¥ 26.28
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