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Mingda Micro MD8250A
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MD8250A
- Type
- Mingda Micro
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 1.25V@(150mA)
- Electronic Component
- Electronic Component
- Electronic Component
- MD8250A
- Electronic Component
- 1
- Package
- SOT-23-5L
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.035g
- Electronic Component
- 1
- Electronic Component
- BM0264391040
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 40V
- Output
- Electronic Component
- Output Voltage
- 5V
- Output Current
- 150mA
- Output Type
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
明达微MD8250A线性稳压器（LDO）产品概述
一、产品定位与核心价值
明达微MD8250A是一款单通道固定输出线性稳压器（LDO），专为低功耗、小体积电子设备设计。其核心优势在于集成多重保护功能的同时，采用超小型SOT-23-3L封装，可满足高密度PCB布局需求，适用于对空间和可靠性要求较高的应用场景。
二、关键性能参数详解
MD8250A的核心参数明确，覆盖输入输出、电流能力及保护特性：
参数项 规格值 说明 输出类型 固定电压输出 无需外部电阻调节，输出电压稳定 输入电压范围 3V~12V（典型） 兼容多种低压电源输入 最大输入耐受电压 40V 可承受短时间过压冲击 输出电流能力 典型150mA/最大300mA 满足中小功率负载需求 输出极性 正极性 适配常规正极供电电路 通道数 单通道 单路输出，简化电路设计 封装形式 SOT-23-3L 超小型贴片封装，尺寸约2.9×1.6×1.1mm三、封装与引脚配置
MD8250A采用SOT-23-3L 3引脚贴片封装，引脚定义清晰（常规配置）：
- 1脚（VIN）：输入电压端，需接直流电源正极；
- 2脚（GND）：接地端，需可靠连接系统地；
- 3脚（VOUT）：固定电压输出端，接负载正极。
该封装具有以下特点：
- 体积小：适合便携设备、小型模块的高密度布局；
- 无铅环保：符合RoHS标准，满足绿色制造要求；
- 焊接便捷：兼容回流焊、波峰焊工艺，焊接温度建议≤260℃（持续时间≤10s）。
四、多重保护功能特性
MD8250A内置三重保护机制，大幅提升电路可靠性：
- 过流保护（OCP）：当输出电流超过300mA阈值时，芯片自动限制输出电流，避免负载过流导致的芯片过热或损坏；
- 短路保护（SCP）：若输出端意外短路到地，芯片立即进入保护模式，切断输出电流，防止短路电流烧毁芯片；
- 过热保护（OTP）：当芯片结温超过150℃典型值时，自动关断输出；温度下降至安全范围（约120℃）后，自动恢复输出，有效避免高温损坏。
五、典型应用场景
MD8250A的小体积、高可靠性特点，使其适用于以下场景：
- 便携电子设备：智能手环、蓝牙耳机、智能手表的辅助供电模块；
- 工业控制节点：小型传感器（如温度、湿度传感器）、PLC扩展模块的电源；
- 消费电子配件：LED小夜灯、USB供电的小型设备（如迷你风扇）；
- 车载辅助电路：车载记录仪、GPS模块的低功耗供电（需确认车规适配性）。
六、使用注意事项
为确保MD8250A稳定工作，需注意以下几点：
- 电源输入：输入电压不得超过40V额定值，避免过压损坏；
- 滤波电容：建议在输入端并联1μF陶瓷电容、输出端并联10μF陶瓷电容，提升电压稳定性；
- 散热设计：满负载工作时需保证芯片周围通风良好，避免长期高温环境；
- 焊接工艺：采用无铅焊接，避免使用过高温度导致封装损坏。
七、总结
明达微MD8250A作为一款高性价比LDO，凭借小封装、多重保护、稳定输出的特点，可快速适配各类中小功率、小体积电子设备的电源设计需求，是替代传统线性稳压器的理想选择。
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