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TMI TMI5101
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TMI TMI5101
- Type
- TMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TMI
- Electronic Component
- TMI5101
- Electronic Component
- 1
- Package
- SOT-23-5
- Type
- DC-DC
- Electronic Component
- LEDDriver
- Electronic Component
- PWM
- Electronic Component
- 0.049g
- Electronic Component
- 1
- Channel Count
- 1
- Features
- (OVP); (OTP); (SCP)
- Electronic Component
- BM0230631098
- Operating Temperature
- 40℃~+125℃
- Switching Frequency
- 1.5MHz
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
TMI5101 产品概述
一、概述
TMI5101 是拓尔微（TMI）推出的一款高频率单通道降压稳压器，输入电压范围宽（DC 2.5V～5.5V），集成功率开关管，最高开关频率 1.5MHz，最大连续输出电流可达 1A。器件支持 PWM 调光，内部集成多重保护功能（过温保护 OTP、过压保护 OVP、短路保护 SCP），工作温度范围 -40℃～+125℃，采用经济型 SOT-23-5 封装，适合空间受限、对电磁兼容和外部元件数量有严格要求的便携与消费类电子应用。
二、主要特点
- 输入电压：DC 2.5V～5.5V，适配锂电与 USB 电源系统
- 1.5MHz 固定开关频率，支持小型外部电感与电容，降低占板面积
- 单通道输出，最大输出电流 1A，内部集成开关管，简化外围设计
- PWM 调光接口，适用于 LED 恒流/亮度控制场景
- 全面保护：过温保护（OTP）、过压保护（OVP）、短路保护（SCP）
- 工业温度级：-40℃～+125℃，可靠性高
- 封装：SOT-23-5，适合批量生产和手工焊接
三、电气与性能参数（摘要）
- 工作电压（VIN）：2.5V～5.5V
- 开关频率：1.5MHz（典型）
- 输出电流：1A（最大连续）
- 拓扑结构：降压（Buck），内部开关管
- 调光方式：PWM 输入控制
- 保护机制：OTP / OVP / SCP
- 工作温度：-40℃～+125℃
四、典型应用场景
- 手持设备与便携式产品的降压供电
- LED 驱动与亮度 PWM 调节（低功耗背光、指示灯）
- 微控制器与传感器供电模块（单节锂电供电）
- USB 外围电源管理、便携式充电设备
五、设计与布局建议
- 采用 1.5MHz 高频率时，可选小体积电感与陶瓷输出电容，注意 ESR 匹配以保持环路稳定。
- 输入端需并联合适的旁路电容以抑制输入纹波；布线尽量缩短 VIN、GND、SW 回路，减小 EMI。
- 开关节点（SW）及电感应远离敏感模拟电路，地线采用单点回流或局部接地以降低噪声耦合。
- 热管理：SOT-23-5 封装热阻相对较高，注意铜箔面积扩展以利散热，保证在大电流工况下器件温升可控。
六、封装与可靠性
TMI5101 提供 SOT-23-5 小封装，适合空间受限设计。器件具备工业级温度范围和多重保护机制，适用于对可靠性要求较高的消费与工业电子产品。若有更详细的电气特性曲线、参考电路或 PCB 布局示意，请参考官方数据手册或联系拓尔微技术支持。
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