WMSIC Electronic Components

TMI TMI6030-18 TMI6030

ModelTMI6030-18
PackageSOT-23-5
BrandTMI
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TMI TMI6030-18
Type
TMI
Minimum package
3000

Technical parameters

Electronic Component
320mV@(300mA)
Electronic Component
TMI
Electronic Component
TMI6030-18
Electronic Component
1
Package
SOT-23-5
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.049g
Electronic Component
1
Features
Output; Terminal Block
Electronic Component
BM0228587257
Operating Temperature
40℃~+125℃@(Tj)
Operating Voltage
5.5V
Output
Electronic Component
Output Voltage
1.8V
Output Current
300mA
Output Type
Electronic Component

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

TMI6030-18 产品概述

一、产品简介

TMI6030-18 是拓尔微(TMI)推出的一款低压差线性稳压器(LDO),采用 SOT-23-5 小封装,提供稳定的 1.8V 固定输出。器件针对便携与低功耗系统进行了优化,具有极低静态电流与良好的开机/保护特性,适合对噪声和纹波敏感的模拟/数字电源域。

二、主要特点

  • 固定输出:1.8V(正极输出)
  • 最大输出电流:300 mA
  • 静态电流(Iq):典型 50 μA,适合电池供电和低功耗待机场景
  • 压差(Dropout):320 mV @ 300 mA(低压差设计,有利于降低功耗)
  • 电源纹波抑制比(PSRR):70 dB @ 1 kHz(优异的纹波抑制能力)
  • 保护功能:短路保护、限流/过流保护、过热保护
  • 带使能(EN)引脚:支持外部开关控制或软关断
  • 工作温度范围(结温):-40°C ~ +125°C (Tj)
  • 最大工作电压(输入端):5.5 V
  • 封装:SOT-23-5,单通道输出

三、电气性能要点与优势

  • 低静态电流(50 μA)使器件在待机模式下对系统电池寿命影响极小,适用于手持与远程终端设备。
  • 300 mA 的输出能力适配常见 MCU、传感器、射频前端和模拟电路的小功率电源需求。
  • 320 mV 的压差在满载时表现良好,当输入电压较接近输出电压时能显著降低功耗和发热。
  • 70 dB @1 kHz 的 PSRR 意味着能有效抑制来自输入侧的开关噪声或纹波,适合对噪声敏感的 ADC、RF、音频等电路供电。
  • 完善的保护电路(短路/过流/过热)提高了系统可靠性,减少外部保护元件的需求。

四、封装与热管理

  • 封装为 SOT-23-5,适用于空间受限的 PCB 布局。
  • 虽然器件支持 300 mA 输出,但在高 Vin−Vout 电压差和高环境温度下功耗显著。功耗 P = (Vin − Vout) × Iout;例如 Vin=3.3V、Vout=1.8V、Iout=300mA 时 P = 0.45 W,需注意结温上升。
  • 推荐在 PCB 上为器件散热预留足够的铜箔面积,必要时采用热沉或多层板过孔/铜带以降低结温,保证长期可靠工作。

五、典型应用场景

  • 电池供电的便携设备与可穿戴终端(对低功耗、高可靠性有要求)
  • MCU、FPGA 的 1.8V 电源域
  • 模拟前端、ADC、传感器等对低噪声电源有需求的电路
  • 通信设备中为射频/基带芯片提供稳定低噪声电源
  • 工业控制与物联网终端

六、设计注意事项

  • 输入/输出去耦:建议在输入端和输出端分别放置低 ESR 陶瓷电容(常见建议 CIN ≥ 1 μF,COUT ≥ 1–10 μF,具体参考器件数据手册),并将电容尽量靠近器件引脚布置,以保证稳定性与瞬态性能。
  • 启用控制(EN):器件带使能引脚,可用于外部开机/关断。实际阈值和逻辑电平请参见完整资料,以便与系统逻辑兼容。若不使用 EN,可按 datasheet 建议拉高或短接到输入以默认使能。
  • 输入电压与功耗:为避免器件过热,尽量使 Vin 尽可能接近 Vout,或在高 Vin 且高 Iout 场合采用开关转换后再用 LDO 做后端滤波/降噪。
  • 保护功能:器件集成短路、过流与过温保护,能在异常情况下保障芯片不被毁坏,但应在 PCB 设计与系统保护策略中考虑额外的容错与检测机制。
  • 布线与地:为维持低噪声特性和高 PSRR,推荐使用单点或短回路的接地策略,给稳压器输入和输出提供良好接地平面。

七、总结

TMI6030-18 在 SOT-23-5 小封装中提供了 1.8V、300 mA 的稳压能力,同时兼顾低静态电流与高 PSRR,是移动与噪声敏感系统的理想选择。正确的电容去耦与热设计能够发挥其最佳性能。欲获得详细的电气参数、引脚定义和典型应用电路,请参考 TMI6030-18 的完整数据手册。

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