WMSIC Electronic Components

Mingda Micro MD8327A

ModelMD8327A
PackageSOT-89-3
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
MD8327A
Type
Mingda Micro
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MD8327A
Electronic Component
1
Package
SOT-89-3
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.01g
Electronic Component
1
Electronic Component
BM0227372211
Operating Temperature
40℃~+85℃@(Ta)
Operating Voltage
40V
Output
Electronic Component
Output Voltage
2.7V
Output Current
300mA
Output Type
Electronic Component
Output Channel Count
1

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

MD8327A 产品概述

一、产品概述

MD8327A 是一款高性能单通道固定输出线性稳压器(LDO),输出为正极 2.7V,最大输出电流可达 300mA。器件支持最高输入工作电压 40V,静态工作电流仅 1.5μA,适合对待机功耗有严格要求的电池供电或节能型系统。内部集成短路保护、过流保护与热关断功能,提升系统可靠性,在 -40℃ 至 +85℃(Ta)工作温度范围内稳定工作。封装采用 SOT-89-3,体积小,便于空间受限场合应用。

二、主要特性

  • 正极固定输出 2.7V,输出通道数:1
  • 最大输出电流:300mA,适合驱动中等负载
  • 工作电压范围最高可承受 40V 输入
  • 极低静态电流 Iq:1.5μA,降低待机功耗
  • 内置保护:短路保护、过流保护、热关断
  • 工作温度范围:-40℃ ~ +85℃(Ta)
  • 封装:SOT-89-3,便于自动贴装与散热设计

三、典型应用

  • 电池供电设备与便携终端(需低静态电流)
  • 物联网终端、传感器节点与低功耗模组
  • 通信模块、模拟前端与基准电源线路
  • 工业控制器与消费类电子产品的局部稳压供电

四、封装与热设计

SOT-89-3 封装尺寸紧凑,适合空间受限的 PCB 布局。虽然封装小巧,但在中等负载工作时仍需关注热耗散。推荐在 PCB 输出引脚和底层增加铜箔面积作为散热通道,并尽量缩短热流路径,以保证器件在高负载下的可靠性与寿命。

五、使用建议与注意事项

  • 为确保稳定性与抑制噪声,建议在输入端和输出端分别配置合适的旁路电容;常见实践为在输出端使用低 ESR 电容以保证环路稳定性。
  • 关注热关断与过流触发条件,设计时留有余量以避免长期在保护边缘工作。
  • 高输入电压应用时需评估功耗与温升,必要时采用散热措施或选择并联/外置散热方案。
  • 在可能出现瞬态负载或导通突变的场合,注意输入电源动态响应与滤波设计。

六、典型电路与布局要点

  • 将输入滤波电容靠近器件输入引脚放置,输出电容靠近输出引脚放置,地线短且宽。
  • 避免在稳压器热源上放置敏感元件,合理安排 PCB 层间铜走线以增强散热。
  • 在有严格 EMI/EMC 要求的系统中,可在输入端增加滤波与防护元件,提升抗干扰能力。

MD8327A 以其低静态电流、高输入耐压与完整保护机制,适合要求可靠性与低功耗并重的各类电子产品电源设计。欢迎在具体方案中与元器件供应商或应用工程师确认旁路电容类型与电路细节以获得最佳性能。

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