WMSIC Electronic Components

MICRONE ME3118ASPG

ModelME3118ASPG
PackageESOP-8
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 ME3118ASPG
Type
MICRONE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICRONE
Electronic Component
ME3118ASPG
Electronic Component
1
Package
ESOP-8
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.186g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0229920309
Operating Temperature
40℃~+85℃
Operating Voltage
4.5V~18V
Switching Frequency
500kHz
Electronic Component
Electronic Component
Output Voltage
800mV~15.3V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

ME3118ASPG 产品概述

一、产品简介

ME3118ASPG 是南京微盟(MICRONE)推出的一款降压型同步整流 DC-DC 电源芯片,采用降压拓扑,单通道可调输出设计。器件集成高侧/低侧开关管,工作开关频率为 500kHz,适用于输入电压 4.5V18V 场景,最大输出电流可达 5A,工作温度范围 -40℃+85℃,封装为 ESOP-8,适合中高功率密度的点对点电源与模块化电源设计。

二、主要特点

  • 降压型(Buck)拓扑,单路可调输出;
  • 输入电压范围宽:4.5V 至 18V;
  • 输出电流能力:最高 5A;
  • 内置开关管,减少外部器件数量与系统体积;
  • 同步整流结构,提高轻载与中大载效率,降低整流损耗;
  • 开关频率 500kHz,兼顾效率与外设体积;
  • 低静态电流 Iq ≈ 1.6mA,利于低功耗待机;
  • 工业级温度范围:-40℃~+85℃;
  • 封装 ESOP-8,利于散热与焊接。

三、电气参数概览

基于器件定位,关键参数如下(设计时请以厂家正式资料为准):

  • 输入电压:4.5V~18V;
  • 输出电流:最大 5A;
  • 开关频率:500kHz;
  • 静态电流:约 1.6mA;
  • 输出类型:外部反馈可调,便于实现不同电压点。

四、典型应用与外部元件建议

  • 应用场景:工业控制、电机驱动前端、车载电子(符合输入电压要求)、通信设备和消费类高功率点供电。
  • 外部元件:需要配合低 ESR 输入/输出电容、合适电流额定的功率电感以及反馈分压电阻实现稳压;建议选择额定电流高于 5A 的电感,电感值依据纹波要求与占空比可在 0.47μH~4.7μH 范围内选取;输入电容采用陶瓷或低 ESR 混合,输出电容优先选择低 ESR 类型以保证稳定性与低纹波。

五、封装与热设计

ESOP-8 封装具有较好的散热通路,建议在 PCB 设计时:

  • 在芯片底部和附近布置大面积铜箔与若干过孔(thermal vias)连通多层地铜以提高散热;
  • 输入电容尽量靠近芯片输入端,回流回路短而宽;
  • 开关节点(SW)走线尽量短,避免干扰扩散。

六、使用注意事项

  • 布局上注意将开关回路(开关管、二极管/同步管、输入输出电容)尽量紧凑,减小寄生电感;
  • 根据输出电压与负载条件优化电感与电容选型,确保环路稳定;
  • 关注器件在高功率下的热升,必要时在 PCB 上扩大散热铜箔并增加过孔散热;
  • 设计时参考厂方参考电路与典型应用,以保证稳定可靠运行。

以上为 ME3118ASPG 的产品概述与工程建议。如需更精确的电气模型、引脚定义或完整典型应用电路,请提供厂商数据手册或许可我查询最新资料以给出详尽设计参考。

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