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MP38870DL-LF-Z

产品分类: DC-DC稳压器
产品描述: 正,降压 No 600KHz Adjustable式 1 11V 800mV 14V 4.5V QFN 贴片安装
供应商型号: MP38870DL-LF-Z-ND
供应商: Digi-Key
标准整包数: 5000
MONOLITHIC POWER SYSTEMS DC-DC稳压器 MP38870DL-LF-Z

MP38870DL-LF-Z概述

    MP38870 3A, 14V, 600KHz Step-Down Converter with Synchronizable Gate Driver
    Product Introduction
    The MP38870 is a monolithic step-down switching regulator designed to deliver a continuous output current of up to 3A across a wide input supply range from 4.5V to 14V, ensuring excellent load and line regulation. Built-in with an internal high-side power MOSFET (80mΩ RDS(ON)), this chip offers exceptional efficiency, particularly when combined with an external synchronous rectifier. Designed primarily for high-density applications, the MP38870 supports a fixed switching frequency of 600KHz, making it suitable for point-of-load (POL) regulators in distributed power systems. It is ideal for use in digital set-top boxes, personal video recorders, broadband communications equipment, and flat panel TVs.
    Technical Specifications
    Below is a summary of key technical parameters of the MP38870:
    | Parameter | Specification |

    | Input Voltage Range | 4.5V to 14V |
    | Output Voltage Range | 0.8V to VIN - 3V |
    | Output Current | 3A Continuous |
    | Switching Frequency | Fixed 600KHz; Adjustable 250kHz to 1.5MHz |
    | Efficiency | Up to 95% with synchronous gate driver |
    | Feedback Voltage Accuracy | ±2% |
    | Pin-to-Pin Thermal Resistance| 48°C/W |
    | Thermal Shutdown Threshold | 150°C |
    | Package | 3mm x 4mm 14-pin QFN |
    This switch-mode regulator also features:
    - Cycle-by-Cycle Over Current Protection
    - Power Good Indicator
    - Soft Start functionality
    - Compatibility with ceramic output capacitors for reduced ESR.
    Product Features and Advantages
    The MP38870 offers several unique features and advantages:
    1. Compact Size: Its compact 3mm x 4mm QFN14 package makes it ideal for space-constrained applications.
    2. Efficient Operation: High efficiency (up to 95%) ensures reduced power losses, critical for portable and battery-powered devices.
    3. Stable Performance: The ability to stabilize output with ceramic capacitors reduces BOM costs while improving reliability.
    4. Enhanced Protection Mechanisms: Built-in protection mechanisms include thermal shutdown, over-current protection, and under-voltage lockout.
    5. Flexible Configuration: Adjustable output voltages and synchronization options enhance flexibility in system design.
    Application Case Studies and Usage Recommendations
    The MP38870 is well-suited for a variety of applications, including:
    - Point-of-Load Regulation: For POL converters in distributed power systems, the MP38870’s quick transient response ensures stable power delivery to sensitive electronics.
    - Digital Entertainment Devices: In devices like set-top boxes and flat-panel displays, the MP38870 delivers clean power with minimal ripple, enhancing overall performance.
    - Communications Equipment: Suitable for broadband communication systems requiring high-efficiency converters.
    Usage Tips:
    - Ensure proper sizing of the inductor to minimize ripple and optimize efficiency.
    - Optimize the placement of the input and output capacitors to reduce noise and voltage drops.
    - Use low ESR capacitors to improve stability and output quality.
    Compatibility and Support
    The MP38870 is fully compatible with standard passive components and can be easily integrated into existing designs. Monolithic Power Systems (MPS) offers extensive technical support and documentation to assist users in maximizing the performance of their designs.
    Common Issues and Solutions
    Here are some common user issues and their solutions:
    1. Issue: Unstable output voltage under heavy load conditions.
    Solution: Inc

MP38870DL-LF-Z参数

参数
输出类型 Adjustable式
最大输出电压 11V
开关频率 600KHz
同步整流器 No
最大输入电压 14V
最小输入电压 4.5V
拓扑 正,降压
最小输出电压 800mV
输出数量 1
功能 Buck
通用封装 QFN
安装方式 贴片安装
零件状态 新设计不推荐

MP38870DL-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。

MP38870DL-LF-Z数据手册

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MONOLITHIC POWER SYSTEMS DC-DC稳压器 MONOLITHIC POWER SYSTEMS MP38870DL-LF-Z MP38870DL-LF-Z数据手册

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价格梯度 中国香港交货 内地交货(含增值税)
5000+ $ 1.794 ¥ 15.0135
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起订量: 5000 增量: 1
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