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Mingda Micro MD7671B50SF4
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MD7671B50SF4
- Type
- Mingda Micro
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 160mV@(1A)
- Electronic Component
- Electronic Component
- Electronic Component
- MD7671B50SF4
- Electronic Component
- 1
- Package
- ESOP-8
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.113g
- Electronic Component
- 1
- Features
- Output
- Electronic Component
- BM0263429955
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 6V
- Output
- Electronic Component
- Output Voltage
- 5V
- Output Current
- 1A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MD7671B50SF4 产品概述
一、产品简介
MD7671B50SF4 是明达微推出的一款高性能可调线性稳压器（LDO），输入工作电压为 6V，输出可调范围 1.2V ~ 5V，最大输出电流 1A。器件采用 ESOP-8 封装，面向需要低压差、高抑制比与多重保护的便携与工业电源管理场景。
二、主要特点
- 输出极性：正极
- 工作电压：6V，输出可调至 1.2V–5V，最高可提供 1A 连续电流
- 低压差：典型压差 160mV @ 1A，适合高效率低压差应用
- 低静态电流：Iq = 40µA，利于低功耗系统
- 高 PSRR：70dB @ 1kHz，有效抑制电源纹波
- 完善的保护与控制：短路保护、过流保护、热关断、输出放电、使能控制、工作状态指示
三、电气性能要点
MD7671B50SF4 在满负载情况下仍能保持较低的压差（160mV @ 1A），适合从 6V 电源降压到 5V 或更低电压的场合。高达 70dB 的 PSRR（1kHz）对噪声敏感的模拟或射频前端尤为重要。低静态电流 40µA 有利于延长电池供电设备的待机时间。输出电压通过外部电阻分压器设置，灵活适配多种子系统电压。
四、封装与环境适应性
器件采用 ESOP-8 小型封装，便于贴片生产与散热设计。工作温度范围宽，-40℃ ~ +85℃ 满足一般工业级温度要求。实际应用时需注意封装的散热能力与 PCB 铜箔面积匹配，避免长期大电流工作导致热限流动作。
五、热管理与 PCB 布局建议
- 功耗估算：Pd = (Vin − Vout) × Iout，设计时按最坏工况计算并留有裕量。
- 散热措施：在器件底部及引脚处增加大面积铜箔并配合过孔形成热通道，可显著降低结温。
- 去耦电容：输入端靠近 VIN 引脚放置 1µF–10µF 陶瓷去耦；输出端建议 4.7µF–22µF 低 ESR（X5R/X7R）陶瓷或合适钽电容以保证稳定性和瞬态响应。
- 布局要点：短且粗的电源回流路径、紧靠器件的输入/输出电容、避免噪声元件靠近 ADJ/FB 与 EN 引脚。
六、典型应用场景
适用于便携设备电源管理、传感器与数据采集模块、通信设备的局部稳压、工业控制与仪器电源、以及需要高 PSRR 的模拟前端供电场合。
七、使用注意事项
- 可调输出需按数据手册推荐的分压网络与旁路电容连接，避免误差与振荡。
- 使能控制与工作状态指示（STATUS）需要按照外部逻辑电平驱动，并参考芯片耐压与门限说明。
- 尽量避免在超出推荐结温和最大功耗条件下长期运行，以免触发热关断或缩短器件寿命。
- 有关具体引脚功能、内部参考电压值、精度与典型波形，请参考完整数据手册以获得详细电气特性与参考设计图。
MD7671B50SF4 以其低压差、高 PSRR、低静态电流和完善的保护机制，是追求稳健电源设计与高可靠性的理想选择。
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