WMSIC Electronic Components

Mingda Micro MD5130

ModelMD5130
PackageSOT-23-3L
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
MD5130
Type
Mingda Micro
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
60mV@(100mA)
Electronic Component
Electronic Component
Electronic Component
MD5130
Electronic Component
1
Package
SOT-23-3L
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.034g
Electronic Component
1
Features
Output
Electronic Component
BM0264548273
Operating Temperature
40℃~+85℃
Operating Voltage
7V
Output
Electronic Component
Output Voltage
3V
Output Current
300mA

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

MD5130 线性稳压器(LDO)产品概述

一、产品定位与核心身份

MD5130是明达微推出的固定输出型低压差线性稳压器(LDO),针对低功耗、小体积、高可靠性场景优化设计。作为单通道正极输出器件,其核心定位是为中小负载设备提供稳定3V电源,兼顾工业级环境适应性与便携设备续航需求,是电池供电、可穿戴、IoT等领域的高性价比选择。

二、关键性能参数解析

MD5130的参数围绕「低功耗、高稳定、小封装」三大核心,关键指标及应用价值如下:

参数类别 具体指标 应用价值 输入输出特性 工作电压7V,固定输出3V,最大输出电流300mA 适配7V电源输入,满足多数中小负载供电需求 低压差性能 60mV(@100mA负载) 输入输出压差极小,提升电源效率,适配电池供电 静态电流 500nA(典型值) 待机功耗极低,显著延长电池设备续航时间 保护功能 短路/过热/过流保护 三重保护机制,提升可靠性,简化外围电路 控制功能 带使能引脚 支持外部开关控制,无需供电时可关断输出 温度范围 -40℃~+85℃(工业级) 适应恶劣环境,满足工业/车载辅助场景需求 封装尺寸 SOT-23-3L(超小封装) 节省PCB空间,适配便携设备高密度布局

三、技术亮点与设计优势

MD5130的核心优势体现在对低功耗与可靠性的平衡设计:

1. 超低静态电流,续航提升显著

500nA的典型静态电流远低于常规LDO(多数同类产品为μA级)。以100mAh电池为例,仅静态电流消耗的待机时间可达约230小时,完美适配智能手环、传感器节点等长待机需求。

2. 低压差设计,适配宽输入范围

60mV的低压差(100mA负载下)意味着输入电压仅需比输出高0.1V即可稳定工作(如输入3.06V输出3V),可适配电池、线性电源、开关电源输出等多种输入,避免电压波动导致的输出不稳定。

3. 全保护机制,简化系统设计

内置三重保护:

  • 短路保护:输出短路时自动关断,故障消除后自动恢复;
  • 过热保护:结温≥150℃时关断,防止器件烧毁;
  • 过流保护:负载电流≥350mA时限流,避免过流损坏。
    无需额外添加保护元件,降低BOM成本与布局复杂度。

4. 带使能控制,灵活功耗管理

使能引脚支持外部数字信号控制(高电平≥2V使能,低电平≤0.8V关断),可通过MCU或开关直接控制输出通断,设备休眠时切断LDO输出,进一步降低系统功耗。

5. 小封装高集成,适配便携场景

SOT-23-3L封装尺寸仅2.9×1.6×1.0mm,3引脚布局简洁,可轻松集成到蓝牙耳机、智能手表等便携设备的高密度PCB中,满足「小体积」设计需求。

四、典型应用场景

MD5130的参数与特性匹配多类低功耗、中小负载应用:

  1. 可穿戴电子:智能手环、蓝牙耳机、智能手表——低功耗延长续航,小封装适配腔体空间;
  2. 工业物联网:传感器节点、环境监测设备——工业级温度范围适应户外/车间环境;
  3. 电池供电设备:手持测温仪、便携医疗设备——低静态电流提升电池使用时间;
  4. 消费电子:智能家居遥控器、小型安防摄像头——稳定输出+保护功能提升可靠性;
  5. 车载辅助电路:仪表盘背光、车载蓝牙模块——宽温度范围适配车载环境。

五、应用设计注意事项

为确保稳定工作,建议遵循以下规范:

  • 输入电容:VIN引脚靠近器件并联1μF X7R陶瓷电容,稳定输入波动;
  • 输出电容:VOUT引脚靠近器件并联1μF X7R陶瓷电容,改善瞬态响应;
  • 使能控制:EN引脚可接10kΩ上拉电阻至VIN,或直接接MCU GPIO;
  • 散热设计:SOT-23-3L自然散热即可满足≤300mA负载,无需额外散热片。

六、总结

MD5130以「超低静态电流、低压差、全保护、小封装」为核心优势,精准匹配低功耗便携设备与工业级应用需求。简单的外围电路与灵活的功耗管理,可帮助工程师快速实现稳定可靠的电源设计,降低系统开发成本,是中小负载电源方案的优选器件。

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