WMSIC Electronic Components

Mingda Micro MD7612D33UA2

ModelMD7612D33UA2
PackageTO252-2
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
MD7612D33UA2
Type
Mingda Micro
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
20mV@(10mA)
Electronic Component
Electronic Component
Electronic Component
MD7612D33UA2
Electronic Component
1
Package
TO252-2
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.387g
Electronic Component
1
Electronic Component
BM0264391038
Operating Temperature
40℃~+85℃@(Ta)
Operating Voltage
40V
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.

MD7612D33UA2 线性稳压器(LDO)产品概述

MD7612D33UA2是明达微推出的一款固定输出型线性稳压器(LDO),针对中低功耗、高稳定性电源转换场景优化设计,具备超低静态电流、小压差、宽输入电压等核心优势,广泛适用于工业控制、物联网、消费电子等领域。

一、产品核心定位与类别

该器件属于低压差线性稳压器(LDO) 范畴,区别于传统线性稳压器的大压差特性,通过低损耗设计实现小压差输出,同时保持低静态电流,兼顾效率与待机功耗。作为固定3.3V输出型号,其1A持续输出能力可满足多数数字电路、传感器、无线模块的供电需求,是替代传统稳压电路的高性价比选择。

二、关键电气参数与性能优势

MD7612D33UA2的核心参数直接支撑其应用场景的适配性,关键性能如下:

  • 输出特性:固定3.3V电压输出,最大持续输出电流1A,可覆盖MCU、FPGA、ADC等主流负载;
  • 压差性能:仅20mV(输出电流10mA时),当输入电压接近输出电压时仍能稳定工作,比如40V输入转3.3V时,压差极小,效率显著高于传统线性稳压器;
  • 静态电流:1.6μA超低待机电流,大幅降低系统待机功耗,适合电池供电或低功耗休眠模式的设备;
  • 纹波抑制:72dB@10Hz低频纹波抑制比,有效过滤输入电源的低频噪声,保证输出电压稳定性,减少对敏感电路(如模拟传感器)的干扰;
  • 输入电压范围:支持最高40V输入电压,兼容工业电源、锂电池组(多节串联)等多种电源输入,宽电压适应性强。

三、封装形式与引脚配置

MD7612D33UA2采用TO-252(DPAK)贴片封装,该封装体积紧凑(约6.5×5.0mm),散热性能良好,适合自动化贴装工艺,可集成到小型化电路模块中。引脚功能清晰:

  • 输入引脚(IN):接入40V以内的直流电源;
  • 输出引脚(OUT):输出稳定的3.3V电压;
  • 使能引脚(EN):支持外部电平控制(高电平有效),可通过MCU或逻辑电路开启/关闭输出,进一步降低待机功耗。

四、保护功能与可靠性设计

为提升系统稳定性,该器件内置多重保护机制:

  • 过流保护(OCP):当输出电流超过额定值(如1A过载)时,自动限制输出电流,防止负载短路或过载损坏器件,故障排除后自动恢复;
  • 过热保护(OTP):内部结温超过150℃(典型值)时,切断输出,避免高温导致器件失效,提升系统可靠性;
  • 过压防护:输入电压超过额定40V时,内部电路自动截止,防止过压损坏。

五、工作环境适应性

MD7612D33UA2具备宽温与宽电压适应性,满足复杂场景需求:

  • 温度范围:工作环境温度(Ta)为-40℃~+85℃,覆盖工业级、户外设备的温度区间,可在低温严寒或高温环境下稳定工作;
  • 输出极性:正极输出,兼容多数正电源供电的电子电路,无需额外极性转换;
  • 通道数:单路稳压输出,结构简单,易于电路设计与调试。

六、典型应用场景

结合参数特性,该器件适用于以下场景:

  1. 工业控制设备:PLC模块、传感器节点、电机驱动辅助供电,宽输入电压兼容工业24V/36V电源;
  2. 低功耗物联网(IoT):智能水表、燃气表、无线传感器网络(WSN)节点,1.6μA静态电流延长电池寿命;
  3. 消费电子:便携式医疗设备(如血糖仪)、手持终端、移动电源的稳压电路,小压差提升电池使用时间;
  4. 车载辅助系统:胎压监测(TPMS)、行车记录仪的低功耗供电,宽温适应性满足车载环境;
  5. 通信设备:小型基站、路由器的辅助供电模块,纹波抑制保证信号传输稳定。

七、使用注意事项

为保证器件稳定工作,需注意以下几点:

  • 输入电压需控制在40V以内,避免过压;
  • 输出负载建议不超过80%额定值(0.8A),高负载下需增加PCB铜箔面积辅助散热;
  • 输入/输出端并联1μF陶瓷电容,进一步降低纹波;
  • 使能引脚需接固定电平(如高电平有效),避免悬空导致误触发;
  • 存储与焊接温度需符合TO-252封装规范(焊接温度260℃/10s)。

总结

MD7612D33UA2作为一款高性能固定输出LDO,以超低静态电流、小压差、宽输入电压、多重保护为核心优势,兼顾效率与可靠性,是工业、物联网、消费电子等领域电源设计的理想选择,可有效简化电路设计、降低系统功耗。

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