WMSIC Electronic Components

MSKSEMI AMS1117CD-3.3 AMS1117CD

ModelAMS1117CD-3.3
PackageTO-252
BrandMSKSEMI
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
MSKSEMI AMS1117CD-3.3
Type
MSKSEMI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
1.4V@(1A)
Electronic Component
MSKSEMI
Electronic Component
AMS1117CD-3.3
Electronic Component
1
Package
TO-252
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.42g
Electronic Component
1
Features
Electronic Component
Electronic Component
BM0264464039
Operating Temperature
20℃~+125℃@(Ta)
Operating Voltage
15V
Output
Electronic Component
Output Voltage
3.3V
Output Current
1A

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

AMS1117CD-3.3线性稳压器产品概述

AMS1117CD-3.3是美森科(MSKSEMI)推出的一款固定输出型线性稳压器,专为需要稳定3.3V直流电压的场景设计,具备宽温适应性、过载能力强等特点,广泛适配工业、车载、通信等领域的电源转换需求。

一、核心参数与性能指标

该型号的关键参数清晰定义了其应用边界与性能表现:

  1. 输出特性:固定输出3.3V直流电压,输出极性为正极,输出电流额定值1A,可满足多数中小功率负载的供电需求;
  2. 输入条件:工作电压上限为15V,压差(输入-输出电压差)为1.4V@1A(即满负载时,输入电压需不低于3.3V+1.4V=4.7V才能稳定输出);
  3. 静态功耗:静态电流(Iq)为12mA,在待机或轻载状态下保持稳定的偏置电流,确保输出电压精度;
  4. 保护机制:内置过热保护功能,当芯片结温过高时自动关断输出,避免器件损坏;
  5. 温度范围:工作温度覆盖-20℃~+125℃(Ta,环境温度),符合工业级宽温要求,可在极端环境下稳定运行。

二、应用场景适配

基于参数特性,AMS1117CD-3.3的应用场景覆盖多领域:

  • 工业控制:PLC(可编程逻辑控制器)、传感器模块、电机驱动辅助电路等,宽温设计适配车间、户外工业现场的温度波动;
  • 车载电子:车载导航、行车记录仪、车载通信模块等,可承受汽车启动时的电压波动及宽温环境;
  • 通信设备:路由器、交换机、基站辅助电源,1A输出电流可驱动多个射频模块或接口电路;
  • 消费电子:智能家居设备、便携式仪器等,固定输出简化电路设计,无需额外电压调节元件。

三、封装与可靠性设计

采用TO-252封装(表面贴装型),该封装具备以下优势:

  1. 散热性能:TO-252封装的引脚布局与散热焊盘设计,可有效导出芯片工作时产生的热量,配合PCB散热铜箔或小型散热片,可满足1A负载下的散热需求;
  2. 焊接与集成:贴片式封装适合自动化SMT焊接,占用PCB面积小(约6.1mm×6.6mm),便于在紧凑的电路模块中集成;
  3. 机械可靠性:封装结构坚固,抗振动、抗冲击能力强,适配车载、工业等振动环境。

四、品牌与品质保障

美森科(MSKSEMI)作为国内专注于功率半导体器件的厂商,AMS1117CD-3.3遵循工业级品质标准:

  • 生产过程通过ISO9001质量管理体系认证,参数一致性好;
  • 器件经过高低温循环、老化测试等可靠性验证,确保宽温环境下的长期稳定性;
  • 封装材料符合RoHS环保要求,无铅焊接兼容。

五、选型与使用注意事项

为确保器件稳定工作,需注意以下要点:

  1. 输入电压范围:输入电压需保持在4.7V~15V之间,避免过压损坏或欠压导致输出不稳定;
  2. 散热设计:当负载电流接近1A时,需在TO-252封装的散热焊盘下增加PCB铜箔面积(建议≥10mm²),或加装小型散热片;
  3. 电容配置:输出端需并联至少10μF的电解电容(或等效陶瓷电容),输入端并联1μF陶瓷电容,以抑制电压波动;
  4. 极性防护:输入、输出引脚需严格区分正负极,接反可能导致器件损坏;
  5. 负载兼容性:避免瞬间过载(超过1A持续时间≤100ms),以免触发过热保护。

总结:AMS1117CD-3.3凭借固定3.3V输出、1A电流能力、宽温适应性及TO-252封装优势,成为工业、车载、通信等领域中小功率稳压场景的实用选择,兼顾性能与成本效益。

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