WMSIC Electronic Components

MICRONE ME2188A36M3G

ModelME2188A36M3G
PackageSOT-23
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICRONE ME2188A36M3G
Type
MICRONE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICRONE
Electronic Component
ME2188A36M3G
Electronic Component
1
Package
SOT-23
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.038g
Electronic Component
1
Features
Electronic Component
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0229920300
Operating Temperature
40℃~+125℃
Operating Voltage
900mV~5V
Switching Frequency
320kHz
Electronic Component
Electronic Component

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

ME2188A36M3G 概述

一、产品简介

ME2188A36M3G 是南京微盟(MICRONE)推出的一款高效升压型 DC-DC 转换器,固定输出 3.6V,工作输入电压范围 0.9V 至 5V,能从单节低电压电池(如干电池、充电电池或单节锂电)直接启动并稳定输出。芯片采用升压拓扑并集成高侧/低侧开关(同步整流),内置开关管,最高开关频率 320kHz,静态电流仅 7.5µA,适合低功耗电池供电场合需要较大输出电流的应用。器件提供 SOT-23 小型封装,工作温度范围 -40℃ ~ +125℃。

二、主要特性

  • 输入电压范围:0.9V ~ 5V,低压启动能力强;
  • 固定输出电压:3.6V,适合驱动 MCU、传感器和小功率电机/负载;
  • 输出电流:最高 300mA(需按散热与电源效率评估实际可用电流);
  • 同步整流:内置,不需要外部肖特基二极管,效率更高;
  • 内置开关管:简化外围器件和 PCB 布局;
  • 静态电流 Iq:7.5µA,待机功耗低,适合长寿命电池供电;
  • 开关频率:320kHz,允许使用体积较小的电感与输出电容;
  • 封装:SOT-23,体积小巧,易于手工焊接与批量贴片。

三、典型应用场景

  • 电池供电的便携式设备(遥控器、手持仪器);
  • 物联网节点、无线传感器、低功耗数据采集模块;
  • 可穿戴设备、医疗监测设备(非高功率驱动);
  • 单节电池供电的 LED 或小功率驱动电路(需评估驱动电流);
  • 需要低静态电流且偶尔大电流输出的系统。

四、典型外围器件与建议

为保证稳定与高效率,建议参考如下外围组件范围(具体值请按应用与效率要求调试):

  • 电感:4.7µH ~ 22µH,取决于输入电压、占空比与输出电流。320kHz 工作频率允许选用较小电感以减小体积;
  • 输入电容:薄膜或陶瓷电容 4.7µF ~ 22µF(低 ESR),靠近 VIN 引脚布置;
  • 输出电容:10µF ~ 47µF 低 ESR 陶瓷电容,保证稳定输出并抑制纹波;
  • 反馈与补偿:器件为固定输出型,外围电路仅需必要的滤波与瞬态抑制;
  • PCB 布局:将输入电容、输出电容与电感尽量靠近芯片相关引脚,缩短高电流回路,减小环路面积。

注:由于为同步升压结构,不需要外接整流二极管,从而提高效率并降低 BOM 成本。

五、热设计与可靠性建议

  • 在 300mA 输出条件下,功耗取决于输入电压与转换效率;高占空比与较大电流会增加芯片发热。建议在 PCB 上使用足够铜箔面积作为散热路径,并保持良好通风;
  • 工作温度 -40℃ ~ +125℃,在高温环境下需关注热降额,尽量保证器件结温在安全范围;
  • 在高脉冲负载或启动时,对输入电源进行适当的抑制(如串联小电阻或增加滤波)以避免瞬态失稳。

六、设计与调试要点

  • 布局优先级:输入电容 → 芯片 VIN 引脚 → 电感 → 输出电容,确保这些元件间的走线最短且粗;
  • 如出现稳定性或纹波问题,可适当增大输出电容或调整电感值;
  • 评估真实应用下的效率与热量,必要时采用更大面积的散热铜箔或多层 PCB 优化热管理。

ME2188A36M3G 以其低启动电压、低静态电流和同步整流优势,适合对电池寿命和体积有严格要求的便携与物联网应用。具体电路参数与元件选型建议在样片验证阶段依据负载特性和效率目标进一步优化。

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