WMSIC Electronic Components

MICRONE ME6119C40M5G

ModelME6119C40M5G
PackageSOT-23-5
BrandMICRONE
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICRONE ME6119C40M5G
Type
MICRONE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
104mV@(100mA)
Electronic Component
MICRONE
Electronic Component
ME6119C40M5G
Electronic Component
1
Package
SOT-23-5
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.04g
Electronic Component
1
Electronic Component
BM0227715807
Operating Temperature
40℃~+125℃
Operating Voltage
18V
Output
Electronic Component
Output Voltage
4V
Output Current
400mA
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.

ME6119C40M5G 产品概述

一、概述

ME6119C40M5G 是南京微盟(MICRONE)推出的一款固定输出型线性稳压器,封装为 SOT-23-5。器件输出电压为 4.0V,面向对低压差、低静态电流以及高可靠性有要求的电源前端应用。该器件具备过流保护、短路保护、热关断和使能(EN)功能,工作温度范围宽(-40℃ 至 +125℃),可在多种工业与消费电子场景中稳定工作。

二、主要性能特点

  • 固定输出:4.0V(正输出极性)
  • 最大输出电流:400 mA
  • 低压差性能:104 mV @ 100 mA(在更高输出电流时压差会相应增加,请参见数据手册曲线)
  • 超低静态电流(Iq):60 μA,适合电池供电或省电模式应用
  • 功能保护:过流保护、短路保护、热关断(热关断提升系统安全性)
  • 带使能(EN)引脚:支持外部电平使能/禁能,便于系统上电排序与功耗管理
  • 工作电压范围:最高工作电压 18 V
  • 单输出通道,封装为 SOT-23-5,便于小体积 PCB 布局

三、电气参数要点(设计参考)

  • 输出电压(Vout):4.0 V(固定)
  • 最大输出电流:400 mA(在足够散热条件下)
  • 静态电流:60 μA(无负载或轻负载条件下)
  • 压差(Dropout):104 mV @ 100 mA(低压差特性有利于延长电池寿命)
  • 工作温度范围:-40℃ 至 +125℃
  • 最大输入电压:18 V(请遵守器件最大额定值以避免损坏)
  • 保护机制:内置过流与短路保护,并实现热关断以防过热破坏

注:压差、功耗和热限受输入电压、输出电流和周围环境温度影响;设计时应参考完整数据手册中的典型曲线与热阻参数。

四、典型应用场景

  • 电池供电设备(便携仪器、手持终端、传感器节点等),利用低静态电流降低待机功耗
  • 工业控制与测量设备,需稳定 4V 电源驱动模拟电路或低压数字外围
  • 通信与物联网模块的本地稳压模块,为 MCU、传感器或模拟前端供电
  • 需要上电使能/电源管理的系统场景,EN 引脚支持功率域管理与电源序列化

五、外部器件与封装、布局注意事项

  • 输出电容:为了稳态稳定与瞬态响应,建议在输出端使用低 ESR 陶瓷电容(X5R/X7R),典型范围 1 μF — 10 μF,常见取值 2.2 μF 或 4.7 μF。实际稳定性依赖于电容的 ESR 与等效串联电感,设计时请按数据手册推荐值选型并验证环路稳定性。
  • 输入电容:建议在输入端放置 1 μF — 10 μF 的陶瓷电容,靠近器件输入引脚,以抑制源阻抗和瞬态电压降。
  • 使能(EN)引脚:EN 为外部逻辑控制输入,具体门限电平与上拉/下拉要求请参照数据手册。若未使用 EN 功能,可按手册建议接到使能有效电平以保证输出启用。
  • PCB 布局:输入/输出电容尽量靠近稳压器的引脚布置,走短而粗的走线以减小寄生阻抗;SOT-23-5 封装散热受限,建议在 PCB 上做充足的铜箔散热区域(尤其是输出与接地方向),并尽量将热量导向大面积铜箔或底层散热平面。

六、可靠性与热管理

  • 功耗估算:线性稳压器功耗等于 (Vin − Vout) × Iout。例如在 Vin 假设较高时,器件会产生明显热量,需评估芯片结温是否会触及热关断门限。
  • 热关断保护:器件内置热关断,当结温超过安全阈值时自动关断输出并在冷却后重启,此保护有助避免器件或负载损伤,但不能替代良好的散热设计。
  • 在 400 mA 近额定电流工作时,若 Vin−Vout 较大,应通过降压预处理或外部散热来减小芯片结温以保证长期可靠性。

七、选型与采购建议

  • 若应用需要固定 4.0 V 输出、低静态电流与 400 mA 级别的短路/过流保护,ME6119C40M5G 是合适选择。对压差、稳态电流及封装空间有更严格要求时,请比对同类 LDO(关注压差随电流的曲线、热阻 θJA、使能门限及输出噪声等)。
  • 在最终定型前建议获取并仔细阅读 ME6119C40M5G 的完整数据手册,验证引脚定义、EN 信号电平、精度、公差、稳定性条件及封装引脚图。样片评估时重点关注在实际 Vin、电流与环境温度下的输出电压漂移、热升高与过载行为。

如需,我可以基于你的具体输入电压、环境温度与负载条件,帮你计算功耗、估算结温并给出 PCB 散热与电容选型的具体建议。

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