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TMI TMI3252T
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TMI TMI3252T
- Type
- TMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TMI
- Electronic Component
- TMI3252T
- Electronic Component
- 1
- Package
- SOT-23-6
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 0.023g
- Electronic Component
- 1
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0226613127
- Operating Temperature
- 40℃~+125℃@(TJ)
- Operating Voltage
- 4.5V~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.
TMI3252T 产品概述
一、核心特点
TMI3252T 是拓尔微（TMI）推出的一款降压型 DC-DC 开关稳压器，封装为 SOT-23-6。器件工作电压范围为 4.5V～18V，内部集成开关管和同步整流，开关频率为 600kHz，输出电流可达 2A，输出为可调类型。器件静态电流（Iq）仅 300μA，器件工作结温范围为 -40℃ 至 +125℃（@TJ），适合对功耗与封装尺寸有要求的便携与工业应用。
二、功能与优势
- 同步整流+内置开关管：提高转换效率，降低导通损耗，利于高效率的 2A 输出。
- 600kHz 开关频率：支持使用体积较小的电感与输出电容，有利于实现紧凑 PCB 布局。
- 低静态电流（300μA）：适合待机/低功耗场景，延长系统待机时间。
- 宽输入电压（4.5V–18V）：可适配单节至多节电池、汽车点火后电源或工业总线电源。
三、典型应用场景
- 便携式设备电源（影音、手持终端）
- 工业控制模块、传感器供电
- 汽车电子辅助电源（需注意实际车规验证）
- 通讯设备、小型网关与电源管理模块
四、设计建议与注意事项
- 输出电感与电容：建议选用低 DCR、高饱和电流的功率电感与低 ESR 陶瓷电容以获得更好瞬态与效率表现；600kHz 频率允许使用较小尺寸元件。
- PCB 布局：输入电容应靠近芯片 VIN 与 GND 引脚；开关节点（SW）走线尽量短，减少寄生环路；为散热在芯片下方与周围预留铜箔与过孔。
- 反馈回路：输出电压通过外部分压设定，注意选择合适阻值以兼顾功耗与抗干扰。
- 热与保护：器件工作于高功率时注意热管理，阅读 datasheet 确认过流/过温等保护特性并据此设计。
五、封装与选型细节
封装：SOT-23-6，利于小尺寸系统集成。作为单通道降压芯片，TMI3252T 适合替代同类小封装同步降压方案，在体积与效率之间提供平衡。实际选型时请参考官方 datasheet 获取典型效率图、负载/输入电压的性能曲线及推荐外围元件列表。
六、结论
TMI3252T 以其宽输入、600kHz 工作频率、2A 输出能力与低静态电流，适用于需要紧凑尺寸与较高效率的降压电源设计。开始设计前建议下载并详细阅读厂商 datasheet 与参考设计图，以确保选择合适的外围元件与布局方案，满足系统的可靠性和热管理要求。
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