WMSIC Electronic Components

Mingda Micro MD7218E33PC1

ModelMD7218E33PC1
PackageSOT-89-5
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
MD7218E33PC1
Type
Mingda Micro
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
650mV@(1A)
Electronic Component
Electronic Component
Electronic Component
MD7218E33PC1
Electronic Component
1
Package
SOT-89-5
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.172g
Electronic Component
1
Electronic Component
BM0264548229
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.

明达微MD7218E33PC1 低压差线性稳压器(LDO)产品概述

明达微MD7218E33PC1是一款针对低功耗、中等功率场景优化的固定输出低压差线性稳压器(LDO),核心定位为电池供电设备、工业传感器节点等对电源稳定性与续航能力有双重要求的系统,兼具高纹波抑制、宽温适应性与完善保护特性,适配多类电子设备的电源转换需求。

一、关键性能参数与场景适配

MD7218E33PC1的参数设计精准匹配特定应用场景:

  • 固定3.3V输出与1A负载能力:满足单片机、蓝牙模块、低功耗传感器等中等功率设备的供电需求,无需额外配置输出电压调整电路,简化系统设计;1A的持续输出电流可覆盖多数便携式设备的工作电流峰值,应对设备启动时的瞬时电流波动。
  • 极低静态电流(1.6uA):这是其核心优势之一,对电池供电设备至关重要——以2000mAh锂电池为例,仅LDO静态电流贡献的待机时长可达约1389天,大幅延长设备更换电池周期,适配智能门锁、无线传感器节点等长期待机场景,降低运维成本。
  • 高电源纹波抑制比(71dB@10Hz):有效过滤低频电源纹波,避免纹波干扰模拟电路(如高精度ADC、压力传感器)的信号精度,提升系统测量与控制的稳定性,适合工业传感器、医疗监护设备等对电源纯净度要求较高的场景,减少数据误差。
  • 650mV压差@1A:在15V输入电压下仍能稳定输出3.3V,适配输入电压波动较大的环境(如车载电源、工业电网辅助电路),无需额外升压/降压级联,简化电源系统架构,降低设计复杂度。

二、封装与小型化设计

MD7218E33PC1采用SOT-89-5贴片封装,体积小巧(典型尺寸约2.9×2.6×1.1mm),引脚布局紧凑且抗干扰性强,便于PCB设计时节省空间,适配智能手环、工业微型传感器模块等小型化产品的紧凑布局需求;同时,贴片封装支持自动化焊接,提升生产效率,降低批量生产的工艺成本。

三、完善的保护特性

为提升系统可靠性,MD7218E33PC1内置双重核心保护:

  • 过流保护(OCP):当输出电流超过额定1A时,芯片自动进入限流模式,限制输出电流在安全范围(通常1.2~1.5A),避免负载短路或过载时损坏芯片及负载设备,保护系统关键部件(如传感器、MCU)不受冲击。
  • 过热保护(OTP):当芯片结温超过阈值(典型150℃左右),自动切断输出;温度回落至安全范围(约120℃)后自动恢复,无需人工干预,防止芯片因过热烧毁,适配环境温度变化较大的工业场景(如户外传感器、车间控制器)。

四、宽温环境适应性

MD7218E33PC1的工作温度范围为**-40℃~+85℃**,覆盖工业现场(户外传感器、车间控制器)、消费电子(车载充电器、户外手持终端)的常见温度场景,无需额外散热设计即可稳定工作,降低系统成本与设计复杂度;同时,宽温特性确保设备在极端环境下仍能正常运行,提升产品可靠性,减少售后维护需求。

五、典型应用场景

MD7218E33PC1的特性使其适配多类场景:

  1. 低功耗物联网设备:无线传感器节点、智能网关、智能门锁(利用低静态电流延长待机);
  2. 工业控制模块:传感器信号调理电路、PLC辅助电源、工业无线通信模块(利用高PSRR与宽温特性);
  3. 消费电子:智能手环、蓝牙耳机、便携式医疗设备(利用小型化封装与1A输出能力);
  4. 车载辅助电路:车载USB接口电源、仪表盘传感器供电(利用15V输入与宽温特性)。

总结来看,明达微MD7218E33PC1以低静态电流、高纹波抑制、宽温适应性为核心优势,结合完善的保护特性与小型化封装,精准匹配电池供电设备与工业传感器的电源需求,是多类电子系统的可靠电源转换方案。

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