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MSKSEMI AMS1117-5.0(MS) AMS1117
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MSKSEMI AMS1117-5.0(MS)
- Type
- MSKSEMI
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 1.4V@(1A)
- Electronic Component
- MSKSEMI
- Electronic Component
- AMS1117-5.0(MS)
- Electronic Component
- 1
- Package
- SOT-223
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.201g
- Electronic Component
- 1
- Features
- Electronic Component
- Electronic Component
- BM0264464043
- Operating Temperature
- 0℃~+125℃@(Ta)
- Operating Voltage
- 15V
- Output
- Electronic Component
- Output Voltage
- 4.9V~5.1V
- Output Current
- 1A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
AMS1117-5.0(MS) 产品概述
一、产品简介
AMS1117-5.0(MS) 为 MSKSEMI（美森科）出品的一款固定输出线性低压差稳压器（LDO），输出极性为正极，固定输出电压约为 5.0V（实际测量 4.9V~5.1V）。器件采用 SOT-223 封装，最大输出电流可达 1A，具有低静态电流和热关断保护，适用于对空间和成本敏感且需稳定 5V 电源的小型电子设备。
二、主要技术参数
- 输出电压：4.9V ~ 5.1V（标称 5.0V）
- 输出电流：最大 1A
- 压差（Dropout）：1.4V @ 1A
- 静态电流（Iq）：典型 12mA
- 最大工作电压：15V
- 保护特性：热关断（Thermal Shutdown）
- 工作温度：0°C ~ +125°C（Ta）
- 输出类型：固定、单通道
- 封装：SOT-223
三、性能特点
- 低功耗设计，静态电流较小，适合电池供电或功耗敏感应用。
- 输出能力强，最高可达 1A，能驱动较大负载。
- 带热关断保护，过热时自动关断以保护器件和系统。
- SOT-223 封装兼顾散热性能与占板面小的优点，便于手工和波峰/回流焊装配。
四、封装与热管理建议
SOT-223 封装需配合合理 PCB 散热设计以保证长期可靠工作：
- 在 GND 和器件下方铺铜以提升散热能力；
- 对于高功耗工况（Vin − Vout 较大且 Iout 靠近 1A），建议使用更大铜箔或多层板散热；
- 注意功耗计算：Pd = (Vin − Vout) × Iout，热设计应确保结温不超过器件额定值。
五、典型应用场景
适用于笔记本电脑附件、小型计算机系统、各类电池供电仪器、手机外围模块与其他便携式电子设备的 5V 电源管理与稳压需求。
六、设计注意事项
- 输入/输出电容对稳定性影响显著，建议在输入端靠近 VIN 放置适当的去耦电容（如 10µF），输出端推荐低 ESR 电容以保证稳压环路稳定；
- 由于压差随电流和温度上升而增加，确保 VIN ≥ VOUT + 1.4V（在额定负载下），且在高电流场景下留有足够裕量；
- 若系统需更低静态电流或更小压差，可考虑选用更先进的低压差 LDO 或开关稳压器混合方案。
七、封装与采购信息
型号：AMS1117-5.0(MS)
品牌：MSKSEMI（美森科）
封装：SOT-223
选型时请注意器件批次与实际规格说明书（Datasheet），并在大电流或高温应用中评估 PCB 散热与环境条件以保证稳定可靠运行。
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