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TMI STI3472
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TMI STI3472
- Type
- TMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TMI
- Electronic Component
- STI3472
- Electronic Component
- 1
- Package
- SOT-23-6
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 0.049g
- Electronic Component
- 1
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0258344409
- Operating Temperature
- 40℃~+125℃@(TJ)
- Operating Voltage
- 3.5V~18V
- Switching Frequency
- 600kHz
- Electronic Component
- Electronic Component
- Output Current
- 2A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
STI3472 产品概述
一、产品简介
STI3472 是拓尔微（TMI）推出的一款降压型同步整流 DC-DC 开关稳压器，采用降压拓扑、单输出通道，内置功率开关，封装为 SOT-23-6。器件支持可调输出，适合对体积、效率和成本有综合要求的便携与嵌入式电源设计。
二、主要参数与特性
- 输入电压范围：3.5V ~ 18V，适配电池和工控电源输入场景。
- 输出电流：最高 2A，满足中等功率负载需求。
- 开关频率：600kHz，利于使用小体积电感与陶瓷电容，实现紧凑布局。
- 同步整流：内置同步整流功能，降低整流损耗、提升转换效率。
- 静态电流（Iq）：典型 400µA，有利于低功耗待机设计。
- 工作温度范围：-40℃ ~ +125℃（结温 TJ），适应工业级温度要求。
- 开关管：内置，简化外围器件选择与布局。
- 输出类型：可调输出，反馈引脚可配置目标输出电压。
- 封装：SOT-23-6，小尺寸、便于表面贴装。
三、典型应用场景
- 电池供电的便携设备与智能终端；
- 工业控制与通信模块的局部电源；
- 车载电子子系统（在满足系统级要求下）；
- 电视机顶盒、路由器等消费类电子的次级稳压。
四、封装与系统集成建议
SOT-23-6 小封装有利于空间受限的 PCB 布局。建议在输入侧靠近芯片放置去耦电容，并为功率回路（开关节点、输入电容、感性元件）留出短且宽的走线，降低 EMI 与功率损耗。输出采用低 ESR 陶瓷或钽电容以保证瞬态响应，反馈网络采用高精度电阻以稳定输出电压。
五、设计注意事项
- 根据实际输出电流选取合适的电感电流额定值与饱和特性；
- 600kHz 工作频率虽可减小外部元件体积，但对布局和 EMI 要求更高；
- 确认散热路径与 PCB 铜箔面积，以满足高电流工作下的热管理。
STI3472 以其宽输入范围、同步整流与低静态电流的组合，适合对尺寸与效率有较高要求的中小功率降压场合。若需具体应用电路或元件选型建议，可提供目标输入/输出条件以便进一步优化设计。
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