WMSIC Electronic Components

Mingda Micro MD7218E33QC3

ModelMD7218E33QC3
PackageSOT-23-5L
BrandElectronic Component
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
MD7218E33QC3
Type
Mingda Micro
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
650mV@(1A)
Electronic Component
Electronic Component
Electronic Component
MD7218E33QC3
Electronic Component
1
Package
SOT-23-5L
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.012g
Electronic Component
1
Electronic Component
BM0264390970
Operating Temperature
40℃~+85℃
Operating Voltage
15V
Output
Electronic Component
Output Voltage
3.3V
Output Current
1A
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.

MD7218E33QC3 线性稳压器(LDO)产品概述

MD7218E33QC3是明达微推出的一款固定输出型低压差线性稳压器(LDO),针对中小功率、低功耗场景的稳定供电需求设计,具备紧凑封装、宽输入范围、低静态电流等核心特性,同时内置多重保护功能,可满足工业级及消费类电子的多场景应用。

一、产品核心定位与类型

该产品属于固定输出正极性LDO,输出电压固定为3.3V,单通道输出设计,主要面向需要稳定3.3V供电的便携式设备、小型工业模块及物联网终端等场景。其低压差特性(1A负载下仅650mV)解决了输入电压与输出电压差较小的稳压难题,低静态电流设计则适配电池供电设备的长续航需求。

二、关键电气性能参数

MD7218E33QC3的电气性能参数针对性强,核心指标如下:

  • 输出特性:固定输出电压3.3V,额定输出电流1A,可满足中小功率负载(如小型MCU、传感器)的供电需求;
  • 输入范围:输入电压支持1.8V~15V宽范围,覆盖从低电压电池(如1.5V纽扣电池升压后)到中等电压电源(如12V适配器)的输入场景;
  • 压差性能:1A负载工况下压差仅650mV,即输入电压只需高于输出电压0.65V即可稳定工作,对输入电压余量要求低,适配低电压供电系统;
  • 静态电流:仅1.6μA,远低于普通LDO(通常数十μA)的静态电流水平,大幅降低待机功耗,尤其适合电池供电的低功耗设备;
  • 工作温度:-40℃~+85℃的工业级温度范围,可适应户外、车间等复杂环境的温度变化,无需额外散热设计;
  • 输出极性:正极输出,符合主流电子电路的供电极性需求,无需额外极性转换。

三、封装与物理特性

该产品采用SOT-23-5L小型贴片封装,尺寸紧凑(典型尺寸约2.9×1.6×1.0mm),适合对空间要求严格的小型设备(如智能手环)、高密度模块(如传感器节点)设计。5引脚设计可支持必要的外围电路(如输出0.1μF~1μF滤波电容),同时便于自动化贴装生产,降低组装成本与空间占用。

四、内置保护功能设计

为提升设备可靠性,MD7218E33QC3内置两种核心保护功能:

  • 过热保护:当芯片结温超过阈值(典型150℃)时,自动关断输出,避免芯片因过热烧毁;温度恢复正常后可自动恢复输出,无需手动干预;
  • 过流保护:当负载电流超过额定1A时,芯片自动限制输出电流(典型限制值1.2A~1.5A),防止后端电路因过流损坏;异常负载移除后,输出可自动恢复正常,保障系统稳定性。

五、典型应用场景

结合产品参数特性,MD7218E33QC3的典型应用场景包括:

  1. 便携式电子设备:智能手环、蓝牙耳机、智能手表等电池供电产品,低静态电流可延长待机时间,宽输入范围适配不同电池电压(如3.7V锂电池);
  2. 小型工业模块:工业温湿度传感器、远程监测终端、小型PLC辅助电路,-40℃~+85℃宽温范围满足车间、户外等工业环境需求;
  3. 消费类电子:小型充电器、移动电源的辅助稳压电路、智能音箱的低功耗控制模块,稳定3.3V输出保障核心芯片工作;
  4. 物联网终端:低功耗物联网节点、智能门锁供电模块,1A输出能力可支撑多个传感器与MCU同时工作。

六、产品优势与适用总结

MD7218E33QC3的核心优势在于**“低功耗、小体积、高可靠性”**:低静态电流(1.6μA)适配电池供电,1A输出能力覆盖中小功率负载,650mV低压差降低输入电压要求,宽温范围满足工业场景,SOT-23-5L封装节省空间,内置双重保护提升系统可靠性。

该产品适合对功耗、空间、温度适应性有要求的3.3V稳压应用,是便携式设备、工业传感器、物联网终端等场景的理想供电解决方案。

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