WMSIC Electronic Components

MICRONE ME6118A33M3G

ModelME6118A33M3G
PackageSOT23-3
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICRONE ME6118A33M3G
Type
MICRONE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
385mV@(500mA)
Electronic Component
MICRONE
Electronic Component
ME6118A33M3G
Electronic Component
1
Package
SOT23-3
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.036g
Electronic Component
1
Electronic Component
BM0226539354
Operating Temperature
40℃~+125℃@(Ta)
Operating Voltage
18V
Output
Electronic Component
Output Voltage
3.3V
Output Current
500mA
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.

ME6118A33M3G — MICRONE(南京微盟)3.3V线性稳压器产品概述

一、概述

ME6118A33M3G 是南京微盟(MICRONE)推出的一款高性能、低静态电流的固定输出线性稳压器(LDO),输出电压为3.3V,采用紧凑的SOT23-3封装,面向便携设备、物联网终端与各类对噪声和稳定性有较高要求的3.3V供电场景。该器件集成过流保护和过热保护,工作温度范围宽 (-40℃ 到 +125℃ @ Ta),适用于苛刻环境下的可靠供电。

二、主要特性

  • 输出类型:固定(3.3V,正极输出)
  • 最大输出电流:500mA,适用于中等功耗负载
  • 静态电流(Iq):约 53μA,适合电池供电与低功耗应用
  • 压差(Dropout):约 385mV @ 500mA,低压差设计有利于降低输入电压要求
  • 电源纹波抑制比(PSRR):≈ 70dB @ 1kHz,优良的噪声抑制能力
  • 保护功能:内置过流保护(OCP)与过热保护(OTP)
  • 最大工作电压:可承受最高输入电压 18V(典型应用请参照厂方规格书)
  • 封装:SOT23-3,体积小,便于空间受限的设计

三、应用场景

  • 便携式终端、手持设备与电池供电系统(因低Iq更利于延长待机)
  • 物联网节点、传感器模块与无线通信模块的3.3V供电
  • 模拟电路、ADC/DAC 与射频前端等对电源噪声敏感的子系统
  • 工业控制、家电与汽车电子中对温度与过流保护有要求的场合(在额定温度范围内使用)

四、热管理与电源设计建议

  • 功耗估算:稳压器功耗 Pd = (Vin − Vout) × Iout。举例在最大额定输入18V、输出3.3V、负载500mA 时,Pd ≈ (18 − 3.3) × 0.5 ≈ 7.35W。SOT23-3 封装难以承受如此高的耗散,可能导致过热触发保护或损坏。建议:
    • 尽量降低输入电压差(Vin 接近 Vout),或降低输出电流;
    • 若输入电压较高且负载大,优先考虑开关降压方案以减小功耗;
    • PCB上增加铜箔散热面、过孔和良好接地以改善热散发。
  • 输出滤波:推荐在输入端和输出端使用低ESR陶瓷电容贴近管脚布局(具体容值与ESR要求请参照器件datasheet)。良好布局能提高瞬态响应和稳定性。
  • 布局要点:输入电容尽量靠近 VIN 引脚并连接稳健地到地;输出电容和负载路径要短且低阻;共地平面有利于降低噪声。

五、可靠性与选用建议

  • 在设计时务必参考官方Datasheet的详细电气特性、典型应用电路与外部元件推荐。
  • 对于持续高功耗或高输入电压场景,优先评估散热能力或改用功率更强的封装/开关稳压器。
  • 若产品对启动、掉电或瞬态性能有严格要求,请通过实验验证在目标电源和负载条件下的稳定性与热行为。

ME6118A33M3G 以其低静态电流、优良PSRR 和内置保护,适合对噪声、功耗与稳定性有综合考量的3.3V供电设计,但在高Vin大电流情况下需格外注意热耗散与系统级电源架构选择。欲获取详细电气参数、引脚定义和封装图,请参阅厂家完整规格书。

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