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MP38892DN-LF-Z

产品分类: DC-DC稳压器
产品描述: 正,降压 No 420KHz Adjustable式 1 37.8V 800mV 42V 4.5V SOP 贴片安装
供应商型号: MP38892DN-LF-Z-ND
供应商: Digi-Key
标准整包数: 2500
MONOLITHIC POWER SYSTEMS DC-DC稳压器 MP38892DN-LF-Z

MP38892DN-LF-Z概述

    MP38892 6A, 42V, 420kHz Step-Down Converter with Synchronizable Gate Driver
    Product Introduction
    The MP38892 is a monolithic step-down switch-mode converter developed by Monolithic Power Systems (MPS). Designed for high-efficiency power management applications, this device features an internal high-side power MOSFET capable of delivering up to 6A of continuous output current across a wide input supply range of 4.5V to 42V. Its primary function is to regulate the output voltage, achieving excellent load and line regulation. This device integrates several advanced features such as current mode operation, synchronized gate driver, and comprehensive protection mechanisms, making it ideal for demanding power conversion tasks.
    Key Applications
    The MP38892 finds widespread use in various consumer electronics, including:
    - Digital set-top boxes
    - Personal video recorders
    - Broadband communications equipment
    - Flat-panel television and monitor power supplies
    Technical Parameters
    Below are the critical technical specifications extracted from the data sheet:
    | Parameter | Value | Unit |
    |
    | Input Voltage Range | 4.5V to 42V
    | Continuous Output Current | 6A
    | Feedback Voltage Accuracy | ±1.5%
    | Internal MOSFET RDS(ON) | 100mΩ
    | Switching Frequency | Fixed: 420kHz
    Adjustable: Up to 1.5MHz
    | Overcurrent Protection | Latch-off
    | Thermal Shutdown | 150°C
    | Output Voltage Range | Adjustable from 0.8V
    Additional details include:
    - Bootstrapped Floating Driver: Boosts gate drive voltage above supply.
    - Efficiency: Up to 95% with synchronization.
    - Package Type: 8-pin SOIC with exposed pad for enhanced thermal performance.
    - Operational Temperature Range: -40°C to +85°C.
    - Absolute Maximum Ratings: VIN up to 45V, Junction Temperature up to 150°C.
    Product Features and Advantages
    The MP38892 offers several unique advantages that set it apart from competing solutions:
    1. Wide Input Voltage Range: Supports systems with varying input voltages, ensuring compatibility with diverse power sources.
    2. High-Efficiency Operation: Fixed-frequency switching combined with synchronized gate driver maximizes energy efficiency.
    3. Compact Design: Requires minimal external components, reducing overall solution size.
    4. Advanced Protection Mechanisms: Includes thermal shutdown, overcurrent protection, and UVLO to safeguard against faults.
    5. Stable Output Voltage Regulation: Operates seamlessly with low ESR ceramic capacitors for improved transient response.
    Application Cases and Use Recommendations
    Typical Use Case: Digital Set-Top Box Power Supply
    A digital set-top box demands a stable 3.3V supply from an input voltage range of 12V to 42V. The MP38892 efficiently converts this input voltage while maintaining excellent line and load regulation.
    Use Recommendations:
    - Ensure the feedback resistors (R1 and R2) are properly selected based on desired output voltage.
    - Optimize PCB layout by following recommended guidelines to minimize electromagnetic interference (EMI).
    - Use a ceramic capacitor (e.g., X5R/X7R) with low ESR for the input and output stages to maximize efficiency and stability.
    Light Load Conditions
    At loads below 100mA, larger inductance values are recommended to enhance efficiency. Additionally, using an external bootstrap diode (e.g., IN4148) when the duty cycle exceeds 65% can further improve performance.
    Compatibility and Support
    The MP38892 is fully compatible with standard electronic systems due to its r

MP38892DN-LF-Z参数

参数
输出类型 Adjustable式
最大输出电压 37.8V
功能 Buck
输出数量 1
最小输出电压 800mV
同步整流器 No
拓扑 正,降压
最小输入电压 4.5V
开关频率 420KHz
最大输入电压 42V
通用封装 SOP
安装方式 贴片安装
零件状态 在售
包装方式 卷带包装

MP38892DN-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。

MP38892DN-LF-Z数据手册

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MONOLITHIC POWER SYSTEMS DC-DC稳压器 MONOLITHIC POWER SYSTEMS MP38892DN-LF-Z MP38892DN-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)
2500+ $ 2.834 ¥ 23.717
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起订量: 2500 增量: 1
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