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Mingda Micro MD52E33WB6
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MD52E33WB6
- Type
- Mingda Micro
- Minimum package
- 10000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 230mV@(500mA)
- Electronic Component
- Electronic Component
- Electronic Component
- MD52E33WB6
- Electronic Component
- 1
- Package
- XDFN-4-EP(1x1)
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.016g
- Electronic Component
- 1
- Features
- Output
- Electronic Component
- BM0264548235
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 7V
- Output
- Electronic Component
- Output Voltage
- 3.3V
- Output Current
- 500mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MD52E33WB6 产品概述
一、产品简介
MD52E33WB6 是明达微推出的一款高性能固定输出线性稳压器（LDO），输出电压为 3.3V，面向对低噪声、低功耗和高可靠性有严格要求的便携及工业应用。器件采用紧凑的 XDFN-4-EP (1×1 mm) 封装，单通道输出，支持使能控制与输出放电，集成多重保护功能。
二、主要规格
- 输入电压范围（最大工作电压）：7V（典型工作以不超过 7V 为宜）
- 输出电压：3.3V（固定）
- 最大输出电流：500 mA
- 压差（Dropout）：230 mV @ 500 mA
- 静态电流（Iq）：600 nA（非常适合电池供电与待机应用）
- PSRR：34 dB @ 1 kHz
- 工作温度范围：-40 ℃ ～ +85 ℃
- 输出通道数：1
三、核心功能特性
- 输出放电：在禁能（EN=Low）时主动将输出放电，避免负载侧电压滞留。
- 使能控制（EN）：外部逻辑控制开启/关闭，支持系统电源管理。
- 过流保护（OCP）与短路保护：限制异常电流，提升系统可靠性。
- 热关断（Thermal Shutdown）：温度异常时自动关断并在降温后恢复。
- 低静态电流：超低待机电流适合长时间待机或低功耗场景。
- 稳定性友好：对常见陶瓷输出电容兼容，易于工程实现（具体电容值和 ESR 依数据手册调整）。
四、典型应用场景
- 电池供电设备（便携式仪器、手持终端、可穿戴设备）
- 工业控制与传感器节点（需要稳压与过载保护）
- 通信与无线模块电源前端（3.3V 数字/模拟供电）
- IoT 节点、低功耗 MCU 驱动电源
五、封装与热性能
MD52E33WB6 的 XDFN-4-EP (1×1 mm) 封装尺寸小，适合空间受限设计。底部散热焊盘（EP）应可靠焊接到 PCB 的接地平面以提升导热。由于 500 mA 输出会产生一定功耗，设计时需评估环境温升与 PCB 热阻，必要时采用散热铜厚、过孔与大面积接地层来改善散热性能。
六、设计与布板建议
- 输入/输出去耦：建议在 VIN 及 VOUT 近端分别放置 1 μF ~ 10 μF 的低 ESR 陶瓷电容，靠近器件引脚布置以保证稳定与抑制纹波。
- 接地与散热：EP 焊盘应与大面积地平面相连，必要时增加热通孔（vias）直到内部接地层以改善散热。
- 路径最短：VIN、VOUT 与 GND 的走线应尽量短且宽，避免串扰与阻抗上升。
- 使能控制：EN 引脚可直接与 MCU 或上级电源控制信号相连，低电平禁能时输出会被快速放电至接近 0V。
- 保护与调试：在初次调试时建议限流电源上电，并验证在不同负载、短路与高温条件下器件保护动作是否符合系统预期。
MD52E33WB6 以其低静态电流、低压差与完整的保护机制，适合对功耗与可靠性有严格要求的中小功率电源设计场合。欲获得详细的电气特性曲线、典型应用电路与布局范例，请参考明达微官方数据手册。
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