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NCP3155BDR2G

产品分类: DC-DC稳压器
厂牌: ON SEMICONDUCTOR
产品描述: Buck Yes 1MHz Adjustable 1 20.16V 800mV 24V 4.7V SOIC-8 贴片安装,黏合安装
供应商型号: NCP3155BDR2GOSTR-ND
供应商: Digi-Key
标准整包数: 1
ON SEMICONDUCTOR DC-DC稳压器 NCP3155BDR2G

NCP3155BDR2G概述

    # Comprehensive Guide to the NCP3155A/B Synchronous Buck Regulator
    Product Introduction
    The NCP3155A/B series represents a robust solution for synchronous buck converters, offering high integration with fully incorporated power switches and comprehensive fault protection mechanisms. Its core features include an adjustable output voltage, a high switching frequency (500 kHz for NCP3155A and 1 MHz for NCP3155B), and compact external components, allowing for minimized board space and cost reduction. This product is ideal for applications requiring efficient power management in environments ranging from 4.7 V to 24 V.
    Primary Applications:
    - Set-top boxes
    - DVD drives and hard disk drives (HDD)
    - LCD monitors and TVs
    - Cable modems
    - Telecom/Networking/Datacom equipment
    Technical Parameters
    The following table summarizes the critical technical parameters of the NCP3155A/B:
    | Feature | Min | Typ | Max | Unit |

    | Input Voltage Range | 4.7 24 | V |
    | Output Voltage | Adjustable |
    | Switching Frequency (A Type)| 400 | 500 | 600 | kHz |
    | Switching Frequency (B Type)| 820 | 1000 | 1180 | kHz |
    | Current Limit Threshold | 7 | 298 µA |
    | Internal Compensation | Yes |
    | Current Limit Protection | Yes |
    | Thermal Shutdown | Yes |
    | Transconductance Amplifier | 0.9 | 1.3 | 1.9 | mS |
    Key Features and Advantages
    1. High Integration: Fully integrated power switches and control circuits eliminate the need for external components.
    2. Efficient Design: Dual-frequency operation (500 kHz/1 MHz) ensures optimal efficiency across different applications.
    3. Compact Form Factor: The SOIC-8 package minimizes PCB footprint while maintaining high performance.
    4. Protection Mechanisms: Comprehensive protections like UVLO, OUV, OOV, and thermal shutdown enhance system reliability.
    5. Cost-Effective Solution: Small filter components due to higher switching frequencies reduce bill-of-materials (BOM) costs.
    Application Cases and Usage Recommendations
    The NCP3155A/B is well-suited for modern electronics requiring high efficiency and compact design, such as consumer electronics, networking gear, and industrial equipment.
    Example Application:
    In a cable modem setup, the NCP3155A/B can efficiently convert an input voltage range of 4.7–24 V to stable outputs needed for various modules. Proper placement of the BST capacitor (1 nF to 100 nF) and careful selection of the compensation network are essential for optimal performance.
    Recommendations:
    - Ensure proper grounding of the PGND pin to maximize heat dissipation.
    - Use a small external capacitor between the BST and VSW pins to improve switching efficiency.
    Compatibility and Support
    The NCP3155A/B is compatible with most standard electronic boards and can interface seamlessly with a variety of microcontrollers and sensors. ON Semiconductor provides detailed technical documentation and excellent customer support to assist users throughout their implementation journey.
    Common Issues and Solutions
    Below are some common challenges encountered when using the NCP3155A/B along with practical solutions:
    | Issue | Solution |

    | Inefficient operation | Optimize external components and compensation network. |
    | Overheating | Ensure adequate PCB layout for heat dissipation. |
    | Output instability | Verify accurate feedback pin configuration and component values. |
    Conclusion and Recommendation

NCP3155BDR2G参数

参数
最小输出电压 800mV
同步整流器 Yes
开关频率 1MHz
最大输出电压 20.16V
最大输入电压 24V
输出数量 1
最小输入电压 4.7V
拓扑 Buck
输出类型 Adjustable
功能 Step-Down
5mm(Max)
4mm(Max)
1.5mm(Max)
通用封装 SOIC-8
安装方式 贴片安装,黏合安装
应用等级 工业级
零件状态 停产
包装方式 卷带包装

NCP3155BDR2G厂商介绍

ON Semiconductor(安森美半导体)是一家全球领先的半导体供应商,总部位于美国亚利桑那州菲尼克斯。公司成立于1999年,由摩托罗拉的半导体部门拆分而来,专注于提供广泛的半导体解决方案。

ON Semiconductor的主营产品包括电源管理、模拟、传感器和连接解决方案。产品分类主要包括:

1. 电源管理:包括电源模块、电源管理IC、电池管理等,广泛应用于消费电子、工业、汽车等领域。
2. 模拟:包括放大器、数据转换器、接口等,应用于通信、医疗、工业控制等领域。
3. 传感器:包括图像传感器、环境传感器、运动传感器等,应用于汽车、工业、消费电子等领域。
4. 连接解决方案:包括以太网、无线通信、接口等,应用于通信、工业、汽车等领域。

ON Semiconductor的优势在于:

1. 技术创新:公司持续投入研发,拥有多项专利技术,为客户提供高性能、高可靠性的半导体解决方案。
2. 产品多样性:产品线丰富,覆盖多个应用领域,满足客户的多样化需求。
3. 客户服务:公司在全球设有多个销售和技术支持中心,为客户提供及时、专业的服务。
4. 供应链管理:公司在全球设有多个生产基地,确保产品的稳定供应和质量控制。

NCP3155BDR2G数据手册

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ON SEMICONDUCTOR DC-DC稳压器 ON SEMICONDUCTOR NCP3155BDR2G NCP3155BDR2G数据手册

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