WMSIC Electronic Components

Mingda Micro MD52E33QC3

ModelMD52E33QC3
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MD52E33QC3
Type
Mingda Micro
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
230mV@(500mA)
Electronic Component
Electronic Component
Electronic Component
MD52E33QC3
Electronic Component
1
Package
SOT-23-5L
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.033g
Electronic Component
1
Features
Output
Electronic Component
BM0264391007
Operating Temperature
40℃~+85℃
Operating Voltage
7V
Output
Electronic Component
Output Voltage
3.3V
Output Current
500mA

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

MD52E33QC3 低压差线性稳压器(LDO)产品概述

一、产品定位与核心价值

MD52E33QC3是明达微推出的固定输出低压差线性稳压器(LDO),专为低功耗、小体积、高可靠性的电子设备设计。其核心优势在于兼顾了低静态电流与高输出能力,同时集成多重保护功能,适配电池供电、便携设备及工业级环境下的电源转换需求,可替代同类进口器件实现国产化应用。

二、核心电气参数亮点

作为3.3V固定输出的LDO,MD52E33QC3的关键参数精准匹配中低功率场景的电源设计需求:

  1. 输入输出范围:支持7V输入电压,固定输出3.3V,覆盖多数MCU、传感器、蓝牙模块等数字器件的供电需求;
  2. 输出能力:最大输出电流500mA,可稳定驱动小型负载(如LCD屏、低功耗无线模块);
  3. 压差性能:满载(500mA)下压差仅230mV,当输入电压接近输出电压时仍能高效稳压,提升电源系统的电压利用率;
  4. 低静态电流:典型静态电流600nA,远低于常规LDO(通常μA级),大幅延长电池供电设备的续航时间(如智能手环待机可达数月);
  5. 纹波抑制:1kHz频率下PSRR达34dB,有效过滤电源输入的纹波干扰,保障后级电路的信号精度(如模拟传感器的采样稳定性)。

三、关键保护特性详解

MD52E33QC3集成多重保护机制,从硬件层面提升设备可靠性与安全性:

  1. 过流保护(OCP):当输出电流超过阈值(约600mA)时自动限流,防止负载过载导致器件过热;
  2. 短路保护(SCP):输出短路时启动保护,切断输出或进入低功耗限流模式,避免电源系统损坏;
  3. 过热保护(OTP):芯片结温超过150℃时自动关断输出,待温度下降至安全范围后恢复,防止过热烧毁;
  4. 使能控制(EN):具备独立使能引脚,可通过MCU或外部开关控制电源通断,实现待机模式切换(使能时工作,禁用时静态电流进一步降低)。

四、封装与引脚配置

MD52E33QC3采用SOT-23-5L封装,尺寸小巧(2.9×1.6×1.1mm),适配高密度PCB设计:

  • 引脚功能(标准配置):1脚(VIN)→ 输入电压;2脚(GND)→ 接地;3脚(EN)→ 使能控制;4脚(VOUT)→ 输出电压;5脚(NC)→ 空脚(部分批次需参考 datasheet);
  • 封装优势:SOT-23-5L为行业通用小封装,焊接工艺成熟,适合穿戴设备、物联网节点等对体积敏感的场景。

五、工作环境与可靠性

MD52E33QC3的工作温度范围为**-40℃~+85℃**,覆盖了三类典型应用环境:

  1. 消费电子:室内外便携设备(如智能手环、蓝牙耳机);
  2. 工业应用:小型工业传感器、物联网节点(耐高低温环境);
  3. 车载周边:车载USB充电器、行车记录仪辅助电路(部分车载场景兼容)。
    其可靠性经过明达微的温度循环、湿度测试(85℃/85%RH),满足量产应用的稳定性要求。

六、典型应用场景

结合参数与特性,MD52E33QC3适用于以下场景:

  1. 便携穿戴设备:智能手环、智能手表(低功耗+小体积);
  2. 物联网节点:低功耗传感器(如温湿度传感器)、智能门锁(600nA静态电流延长电池寿命);
  3. 小型工业设备:工业传感器模块、PLC辅助稳压电路(宽温范围);
  4. 消费电子配件:充电宝、充电器的5V转3.3V稳压(高可靠性+保护功能)。

MD52E33QC3凭借低功耗、小封装、多重保护的特点,成为电池供电设备与工业级小功率稳压场景的高性价比选择。

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