WMSIC Electronic Components

MICRONE ME3104AM5G-N ME3104AM5G

ModelME3104AM5G-N
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICRONE ME3104AM5G-N
Type
SOT-23-5
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICRONE
Electronic Component
ME3104AM5G-N
Electronic Component
1
Package
SOT-23-5
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.08g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0228047260
Operating Temperature
40℃~+70℃@(TA)
Operating Voltage
2.8V~6V
Switching Frequency
1.5MHz
Electronic Component
Electronic Component
Output Current
2A

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

ME3104AM5G-N 产品概述

ME3104AM5G-N 是南京微盟(MICRONE)推出的一款高集成度降压型 DC‑DC 开关稳压器,采用同步整流、内置功率开关的降压拓扑,封装为 SOT‑23‑5,适合对尺寸、效率和静态电流有较高要求的便携类与工业级电子产品。器件支持可调输出,输入电压范围 2.8V 至 6V,最大输出电流 2A,开关频率 1.5MHz,静态工作电流仅 50µA,工作温度范围 -40℃ 到 +70℃(TA)。

一、主要规格要点

  • 型号:ME3104AM5G-N(MICRONE / 南京微盟)
  • 输出类型:可调(通过外部分压设定)
  • 拓扑结构:降压(Buck),同步整流
  • 开关频率:典型 1.5MHz
  • 输入电压范围:2.8V ~ 6V
  • 最大输出电流:2A
  • 静态电流(Iq):50µA(低静耗,适合电池供电)
  • 开关管:内置(简化外部驱动及布局)
  • 工作温度范围:-40℃ ~ +70℃(TA)
  • 封装:SOT‑23‑5(5 引脚)

二、关键特性与优势

  • 高集成度:内置高侧/低侧 MOSFET,无需外置开关管,简化设计与装配。
  • 同步整流:与传统二极管整流相比,降低导通损耗,提高中低压差时的转换效率,尤其在中等至大负载下优势明显。
  • 高频工作:1.5MHz 开关频率使得外部电感和电容尺寸可大幅缩小,便于紧凑 PCB 布局与逆向空间受限的应用。
  • 低静态电流:50µA 的静态电流有利于延长电池驱动系统的待机时间,适合 IoT、穿戴与便携设备。
  • 宽输入电压:2.8V 至 6V 覆盖单节锂电池至 5V USB 等常见电源域。

三、电气参数与设计注意点

  • 输出可调:通过外部分压电阻网络设定输出电压,建议使用精度较高的阻值以保证稳压精度并降低温漂。
  • 最大输出电流 2A:在靠近最大输出时需关注器件发热和 PCB 热散,建议在高负载条件下进行热仿真或测量,并根据需要扩展铜箔面积或散热片。
  • 输入要求:为保证稳定工作,输入端应并联足够的去耦电容(陶瓷电容为主),靠近 VIN 与 GND 引脚放置,抑制开关突变电流和 EMI。
  • 输出滤波:选用低 ESR 的陶瓷输出电容可降低输出纹波并提高瞬态响应,必要时配合一定的电容容值以满足负载突变。

四、典型应用电路与外部元件选择

典型降压电路由 VIN、输入去耦电容、内置开关、外置电感、输出电容和反馈分压网络组成。SOT‑23‑5 标准封装的引脚较为紧凑,建议的外部元件选型要点如下:

  • 电感:选择低直流电阻(DCR)、高饱和电流(>2A)的功率电感。对 1.5MHz 工作频率,常用电感值范围大致为 0.47µH ~ 2.2µH,具体取决于允许电流纹波与负载情况。
  • 输入电容:10µF 陶瓷(X5R/X7R)并联 1µF 小电容,耐压留有裕量(≥ VIN 最大)。
  • 输出电容:10µF ~ 47µF 陶瓷为主,必要时并联一颗电解或钽电容提升整体电容量和稳定性;关注 ESR 以控制环路和纹波。
  • 分压电阻:反馈网络阻值选择需兼顾功耗与抗干扰能力,常见上拉/下拉阻值总和在 50kΩ ~ 500kΩ 范围。
  • 使能/软启动:若器件带 EN/EN 引脚,可通过外部电阻或 MCU 控制;若需限制启动涌流,可增加软启动或启动控制电路。

注:具体器件和数值应以 ME3104AM5G‑N 详细数据手册为准。

五、PCB 布局与热管理建议

  • 最短回流环路:将 VIN、电感、输出电容和稳压器 SW 节点形成的回路尽量缩短,减小寄生电感与辐射。
  • 输入电容靠近 VIN 引脚放置,输出电容靠近 SW/OUT 节点放置。
  • GND 采用完整的地平面,并在器件下方与周围区域铺铜以利散热。若可能,使用多层 PCB 并在地铜处布置过孔导通热量到内层/底层铜。
  • 对于高电流路径(VIN、SW、L、Cout),加宽走线以降低压降和发热。
  • 若现场测试出现寄生振荡或 EMI 较高,考虑在 SW 引脚附近加入小 RC 阻尼或选用带屏蔽的电感器件。

六、典型应用场景与使用提示

  • 适用于便携设备电源、便携式仪表、无线通信模组、电池管理系统、传感器与 IoT 终端等需由 2.8–6V 电源下降压供电且对效率与体积有要求的场合。
  • 在选择电感与电容时应综合考虑体积、效率、输出纹波和温升要求;在接近 2A 输出时务必评估热耗散并在系统层面留有裕度。
  • 推荐在设计前下载并参考 ME3104AM5G‑N 的完整数据手册、典型应用与 PCB 布局指南,以获得最佳性能与可靠性。

如需器件引脚定义、典型效率曲线、启动特性、保护功能及完整电气参数,请提供或查询官方数据手册以获取精确信息。

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