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MICRONE ME1117A50K3G
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MICRONE ME1117A50K3G
- Type
- MICRONE
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 1.4V@(1A)
- Electronic Component
- MICRONE
- Electronic Component
- ME1117A50K3G
- Electronic Component
- 1
- Package
- TO-252-2
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.474g
- Electronic Component
- 1
- Electronic Component
- BM0230857619
- Operating Temperature
- 40℃~+125℃@(Ta)
- Operating Voltage
- 15V
- Output
- Electronic Component
- Output Voltage
- 5V
- 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.
ME1117A50K3G 产品概述
一、产品简介
ME1117A50K3G 是南京微盟（MICRONE）推出的一款固定输出线性稳压器，输出为正5.0V，最大输出电流可达1A。器件采用 TO-252-2（DPAK）封装，集成过流保护与过热关断功能，工作温度范围为 -40℃ 至 +125℃（Ta），适合对稳定供电与可靠性有要求的工业与消费类电子产品。
二、主要电气参数
- 输出类型：固定（5.0V）
- 最大输入电压（工作电压）：15V
- 输出电流：最大 1A
- 压差（Dropout）：1.4V @ 1A（设计时需预留余量）
- 静态电流（Iq）：4.7mA（无负载下的偏流）
- 电源纹波抑制比（PSRR）：65dB @ 1kHz
- 保护特性：过流保护、过热保护
- 输出极性：正极，单通道输出
三、封装与引脚定义
封装：TO-252-2（DPAK）。常见引脚排列：
- 引脚1：GND（地）
- 引脚2：VOUT（输出）
- 散热面/Tab：VIN（输入）
（设计电路时请参考厂商具体封装引脚图纸以确认）
四、设计与应用建议
- 输入电压要求：为保证满载 1A 输出，输入电压需高于 VOUT + 压差，即 Vin ≥ 5V + 1.4V（对高电流与散热余量应更保守）。器件最大允许工作电压为 15V。
- 散热设计：线性器件功耗 Pd = (Vin - Vout) × Iout。高差分电压或持续大电流时，需在 PCB 上提供充分铜箔散热或外挂散热片，避免因结温上升触发过热保护或损坏器件。
- 输出电容：为保证稳定性和瞬态响应，建议在输出端靠近器件放置至少 10µF（钽电容或低 ESR 电解电容）；若使用陶瓷电容，应注意并联一定等效串联电阻或参考厂商关于陶瓷电容配合的稳定性说明。输入端同样建议放置去耦电容（1µF–10µF）以抑制瞬态与纹波。
- 布局要点：地与散热铜块应直接连到器件引脚和散热面，减小接地阻抗并利于热量扩散；输入、输出电容靠近器件引脚焊盘安放。
五、典型应用场景
- 单片机与数字逻辑供电（5V 系统）
- 传感器与接口电源模块
- 工业控制、通信设备中局部稳压
- 电源模块原型验证与低成本电源方案
六、选型与可靠性要点
选择 ME1117A50K3G 时，需关注输入电压范围、预估最大功耗与 PCB 散热能力；在高环境温度或长时间大电流输出场合，应评估结温并适当增加散热面积或改用开关电源以提升效率与可靠性。订购时请确认 MICRONE 正式型号与包装信息，按需索取器件详细规范书与封装图。
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