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MP8718EN-LF-Z

产品分类: DC-DC稳压器
产品描述: 正,降压 Yes 500KHz Adjustable式 1 18.9V 800mV 21V 4.5V SO 贴片安装
供应商型号: MP8718EN-LF-Z-ND
供应商: Digi-Key
标准整包数: 2500
MONOLITHIC POWER SYSTEMS DC-DC稳压器 MP8718EN-LF-Z

MP8718EN-LF-Z概述

    # High Efficiency Synchronous Step-Down Converter: MP8718
    Product Introduction
    The MP8718 is a high-frequency, synchronous rectified step-down switch-mode converter designed for efficient power conversion. It integrates internal power MOSFETs to deliver a compact and reliable solution for continuous 4A output current across a wide input supply range of 4.5V to 21V. Its advanced features make it suitable for various applications requiring high efficiency, such as notebook systems, networking equipment, digital set-top boxes, personal video recorders, flat-panel televisions, and distributed power systems.
    Technical Parameters
    The following table summarizes key technical specifications of the MP8718:
    | Parameter | Value |

    | Operating Input Range | 4.5V to 21V |
    | Continuous Output Current | 4A |
    | Rds(on) Internal MOSFET | Low, ensuring minimal loss |
    | Switching Frequency | Fixed 500kHz (externally syncable from 300kHz to 2MHz) |
    | Feedback Voltage | 0.8V |
    | Thermal Shutdown Temp | 150°C |
    | Protection Features | OCP, hiccup mode |
    Key electrical characteristics include:
    - High efficiency due to synchronous rectification.
    - Internal compensation simplifies design complexity.
    - Supports soft-start with a period of 1.5ms.
    Product Features and Advantages
    The MP8718 excels with its robust design, featuring:
    - Proprietary Switching Loss Reduction Technique: Enhances efficiency and performance.
    - Wide Input Voltage Range: Supports flexible system designs.
    - Compact Solution: Utilizes an 8-pin SOIC package with an exposed pad for enhanced thermal management.
    - Built-In Protection Mechanisms: Includes overcurrent protection (OCP), thermal shutdown, and hiccup mode for safe operation.
    Its market advantage lies in its ability to handle high load and line regulation efficiently, making it ideal for demanding electronic environments.
    Application Case Studies and Usage Recommendations
    Applications
    The MP8718 is commonly used in:
    - Notebook Systems: Provides stable power to CPU/GPU subsystems.
    - Networking Devices: Powers Ethernet switches and routers efficiently.
    - Digital Set-Top Boxes: Ensures reliable power supply for high-definition content processing.
    Usage Suggestions
    1. Optimize Resistor Divider: Ensure correct selection of R1 and R2 for desired output voltage and optimal transient response.
    2. Bootstrap Capacitor Selection: Use a high-quality capacitor to ensure stable bootstrap charging under varying load conditions.
    3. Thermal Management: Implement adequate heat sinks or PCB layout practices to manage thermal dissipation effectively.
    Compatibility and Support
    The MP8718 is compatible with most standard external components and integrates seamlessly into existing circuits. Monolithic Power Systems provides comprehensive support including datasheets, application notes, and customer service to assist users throughout the integration process.
    Common Issues and Solutions
    | Issue | Solution |

    | Overheating | Improve PCB layout for better thermal dissipation. |
    | Output Voltage Fluctuation | Verify resistor values and recalibrate feedback loop. |
    | Startup Failures | Check EN pin configuration and voltage levels. |
    Conclusion and Recommendation
    The MP8718 is a high-performance, high-efficiency synchronous step-down converter with significant advantages in terms of efficiency, flexibility, and ease of implementation. Its compact size, built-in protections, and compatibility make it an excellent choice for a wide array of modern electronic devices. We highly recommend the MP8718 for applications

MP8718EN-LF-Z参数

参数
拓扑 正,降压
同步整流器 Yes
最大输出电压 18.9V
最大输入电压 21V
开关频率 500KHz
输出类型 Adjustable式
最小输出电压 800mV
输出数量 1
最小输入电压 4.5V
功能 Buck
通用封装 SO
安装方式 贴片安装
零件状态 新设计不推荐
包装方式 卷带包装

MP8718EN-LF-Z厂商介绍

Monolithic Power Systems(MPS)是一家领先的高性能模拟半导体公司,专注于为广泛的电子系统提供电源管理解决方案。公司总部位于美国加利福尼亚州,成立于1997年,并于2004年在纳斯达克上市。

MPS的主要产品分为以下几类:
1. DC-DC转换器:用于将电池或其他电源的电压转换为所需的电压和电流。
2. AC-DC电源解决方案:将交流电转换为直流电,适用于各种电子设备。
3. 线性稳压器:提供稳定的电压输出,适用于需要精确电压的应用。
4. 电池管理IC:包括电池充电器和保护电路,确保电池安全和延长寿命。
5. LED驱动器:为LED照明提供精确的电流和电压控制。

MPS的产品广泛应用于以下领域:
- 移动设备和通信
- 计算机和服务器
- 工业和汽车
- 医疗设备
- 消费电子产品

Monolithic Power Systems的优势在于:
- 高性能:提供高效率和高精度的电源管理解决方案。
- 高可靠性:产品经过严格的测试,确保在各种环境下的稳定性。
- 创新技术:持续研发新技术,以满足市场对更高性能和更小尺寸的需求。
- 定制解决方案:能够根据客户的具体需求提供定制化的电源管理解决方案。

MP8718EN-LF-Z数据手册

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MONOLITHIC POWER SYSTEMS DC-DC稳压器 MONOLITHIC POWER SYSTEMS MP8718EN-LF-Z MP8718EN-LF-Z数据手册

MP8718EN-LF-Z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)
2500+ $ 1.456 ¥ 12.1849
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起订量: 2500 增量: 1
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