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MAX1681ESA

产品分类: DC-DC稳压器
厂牌: MAXIM INTEGRATED
产品描述: BUCK 1.4MHz,2.3MHz Adjustable 1 4.56V 800mV 5.5V 2.75V SOIC-8 支架安装,贴片安装 4.9mm*3.9mm*1.55mm
供应商型号: CY-MAX1681ESA
供应商: Avnet
标准整包数: 1
MAXIM INTEGRATED DC-DC稳压器 MAX1681ESA

MAX1681ESA概述

    # MAX1680/MAX1681: 125mA, Frequency-Selectable, Switched-Capacitor Voltage Converters
    Product Introduction
    The MAX1680/MAX1681 is a class of switched-capacitor voltage converters designed to efficiently convert input voltages into inverted (-VINPUT) or doubled (2VINPUT) outputs. These devices can supply up to 125mA of output current and support a wide input voltage range of +2.0V to +5.5V. The MAX1680/MAX1681 are highly flexible, allowing for both voltage inversion and doubling, making them suitable for applications requiring compact solutions without inductors.
    Key functional aspects include:
    - Inverting input voltage or doubling it.
    - Supporting multiple selectable frequencies for optimizing circuit design.
    - Minimal external components, reducing board space requirements.
    Applications
    The MAX1680/MAX1681 finds extensive usage in the following areas:
    - Local negative supplies.
    - Interface power supplies.
    - Operational amplifier power supplies.
    - MOSFET biasing.
    Technical Parameters
    Below are key technical specifications extracted from the data sheet:
    | Parameter | Typical Value | Unit |
    |
    | Output Current | 125 | mA |
    | Output Resistance | 3.5 | Ω |
    | Shutdown Current | < 1 | µA |
    | Operating Temperature Range | -40°C to +85°C
    | Switching Frequencies (MAX1680)| 125kHz, 250kHz | kHz |
    | Switching Frequencies (MAX1681)| 500kHz, 1MHz | kHz |
    | Input Voltage Range | +2.0V to +5.5V | V |
    Product Features and Advantages
    The MAX1680/MAX1681 offers several standout features:
    - Flexible Frequency Selection: Offers multiple selectable frequencies to optimize performance and reduce EMI risks.
    - Small Capacitor Usage: Allows the use of capacitors as small as 1µF, simplifying PCB layout.
    - High Efficiency: Achieves up to 90% efficiency.
    - Compact Packaging: Available in standard 8-pin SO packages.
    - Minimal Output Drop: Outputs maintain only a 440mV drop under full load, showcasing its excellent regulation capabilities.
    Its advantages over traditional inductor-based solutions include reduced cost, decreased physical footprint, and faster development cycles.
    Application Case Studies and Usage Recommendations
    Voltage Inversion Example
    The MAX1680/MAX1681 is commonly used in voltage inversion applications such as providing local negative power supplies. When configured in an inverter setup, it generates a negative voltage from a positive source, essential for biasing op-amps and other analog circuits.
    Usage Suggestion: Always ensure proper bypassing of the input voltage with low-ESR capacitors to prevent transient issues. For increased load stability, parallel multiple converters to share current demand.
    Voltage Doubling Example
    In voltage-doubling configurations, the MAX1680/MAX1681 can convert low voltages into higher usable voltages, such as driving LEDs or charge pumps in digital circuits.
    Optimization Tips: Choose capacitors based on the calculated equations provided in the data sheet to achieve the desired ripple reduction and output efficiency. Consider using ceramic capacitors for lower ESR to enhance overall system performance.
    Compatibility and Support
    The MAX1680/MAX1681 integrates seamlessly with existing electronic systems, and its modular nature facilitates compatibility across diverse applications. Maxim Integrated provides robust support through detailed documentation and sample availability via their website and customer service channels.
    Common Issues and Solutions
    Below are some frequently encountered problems along with practical solutions:
    | Problem | Solution

MAX1681ESA参数

参数
输出类型 Adjustable
功能 Inverting/Step-Up
同步整流器 -
最大输出电压 4.56V
最小输入电压 2.75V
开关频率 1.4MHz,2.3MHz
最大输入电压 5.5V
输出数量 1
最小输出电压 800mV
拓扑 BUCK
长*宽*高 4.9mm*3.9mm*1.55mm
通用封装 SOIC-8
安装方式 支架安装,贴片安装
应用等级 工业级
零件状态 停产
包装方式 管装

MAX1681ESA厂商介绍

Maxim Integrated(美信集成)是一家全球领先的半导体设计公司,专注于模拟、混合信号和微处理器解决方案。公司成立于1983年,总部位于美国加州圣何塞。

Maxim Integrated的主要产品分为以下几类:
1. 电源管理:包括电源管理IC、电池管理、电源转换器等,广泛应用于移动设备、工业控制等领域。
2. 微控制器:包括微处理器、微控制器等,应用于智能家居、物联网、医疗设备等领域。
3. 接口产品:包括以太网、串行通信、USB等接口产品,应用于通信、计算机等领域。
4. 传感器:包括温度、湿度、压力等传感器,应用于汽车、工业控制等领域。
5. 射频和无线:包括无线通信、射频放大器等产品,应用于无线通信、**通信等领域。

Maxim Integrated的优势在于:
1. 强大的研发能力:拥有超过4000项专利,持续推出创新产品。
2. 丰富的产品线:提供超过7万种产品,满足不同客户的需求。
3. 广泛的应用领域:产品广泛应用于消费电子、工业、汽车等领域。
4. 优质的客户服务:提供技术支持、定制解决方案等服务,满足客户的个性化需求。

MAX1681ESA数据手册

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MAXIM INTEGRATED DC-DC稳压器 MAXIM INTEGRATED MAX1681ESA MAX1681ESA数据手册

MAX1681ESA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)
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库存: 158
起订量: 47 增量: 1
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合计: ¥ 21.57
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