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MICRONE ME1117A33K3G
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MICRONE ME1117A33K3G
- Type
- MICRONE
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 1.4V@(1A)
- Electronic Component
- MICRONE
- Electronic Component
- ME1117A33K3G
- Electronic Component
- 1
- Package
- TO-252-2
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.459g
- Electronic Component
- 1
- Electronic Component
- BM0227715804
- Operating Temperature
- 40℃~+125℃@(Ta)
- Operating Voltage
- 15V
- Output
- Electronic Component
- Output Voltage
- 3.3V
- Output Current
- 1A
- 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.
ME1117A33K3G 产品概述
一、产品简介
ME1117A33K3G 是南京微盟（MICRONE）推出的一款固定输出线性低压差稳压器（LDO），输出为正极 3.3V，单通道设计，适合对稳压精度和抗干扰有一定要求的中低功率电源场景。器件提供片内过热保护，工作温度范围广（-40℃ ~ +125℃ @ Ta），可靠性适合工业级应用。
二、主要参数
- 输出电压：3.3V（固定）
- 最大输出电流：1A
- 压差（Dropout）：1.4V @ 1A（即输入电压需高于约 4.7V）
- 静态电流（Iq）：10mA
- 电源纹波抑制比（PSRR）：65dB @ 1kHz
- 工作电压（允许）：最高可达 20V（典型工作电源设计常见于 ≤15V）
- 输出极性：正极
- 保护特性：过热保护（内置）
- 工作温度：-40℃ ~ +125℃ (@Ta)
- 封装：TO-252-2（DPAK）
三、关键特性与优势
- 高 PSRR（65dB @1kHz）有效抑制来自开关电源或变压器的纹波与噪声，提升系统模拟与数字电路稳定性。
- 1A 输出能力满足多数 MCU、传感器模组与射频前端供电需求。
- 内置过热保护提高系统安全性，发生过载或散热不足时自动限制或关断输出。
- 宽温度范围与工业级封装，适合工业控制、通信与仪表等环境。
四、典型应用
- 单片机（MCU）和嵌入式系统供电（3.3V 节点）
- 通信设备与网络模块供电
- 传感器与数据采集前端
- 工业控制、消费电子及测试设备的低噪电源设计
五、设计与布板注意事项
- 为保证稳压器稳定工作，建议在输入与输出端配备去耦电容（例如输入端 10µF，输出端至少 10µF，具体电容类型与 ESR 由电路板和负载特性决定）。
- 由于器件在高电压差和大电流下会产生显著功耗（Pd ≈ (Vin − Vout) × Iout），需做好散热设计：选择合适散热垫、加大铜箔面积或配合散热片。
- 运行时若输入电压接近器件最大额定值（近 20V），应评估功耗与热应力，推荐典型供电不超过 15V 以延长可靠性。
- 布板时将散热脚与地平面良好连接，降低结温，保证过热保护有余量。
六、封装与采购提示
ME1117A33K3G 采用 TO-252-2（DPAK）封装，适合表面贴装与有一定散热需求的应用。采购时注意选购来自正规渠道的 MICRONE（南京微盟）原装件，并查看数据手册以确认输入电压范围、典型热阻与应用电容建议，确保设计与实际应用一致。
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