WMSIC Electronic Components

HGSEMI LP2985AIM5-3.3/TR LP2985AIM5

ModelLP2985AIM5-3.3/TR
PackageSOT-23-5
BrandHGSEMI
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HGSEMI LP2985AIM5-3.3 / TR
Type
SOT-23-5
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
165mV@(150mA)
Electronic Component
HGSEMI
Electronic Component
LP2985AIM5-3.3/TR
Electronic Component
1
Package
SOT-23-5
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.048g
Electronic Component
1
Features
Terminal Block; Voltage
Electronic Component
BM0264801309
Operating Temperature
40℃~+85℃
Operating Voltage
16V
Output
Electronic Component
Output Voltage
3.3V
Output Current
150mA

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

LP2985AIM5-3.3/TR 产品概述

一、产品简介

LP2985AIM5-3.3/TR 是一款面向便携与工业应用的低压差线性稳压器(LDO),提供固定 3.3V 输出、最高 150mA 输出电流的稳压能力。器件集成使能控制、噪声旁路端子、反极性保护、过流保护和热关断等实用保护与功能,适合对噪声、纹波及瞬态性能有一定要求的小功率电源模块。封装采用小型 SOT-23-5,适合集成密度较高的电路板设计(品牌:HGSEMI/华冠)。

二、主要规格

  • 输出电压:3.3V(固定)
  • 最大输出电流:150mA
  • 工作电压(输入):最高 16V
  • 压差(Dropout):165mV @ 150mA
  • 静态电流(Iq):约 600µA
  • 电源纹波抑制比(PSRR):75dB @ 100Hz
  • 工作温度范围:-40℃ ~ +85℃
  • 输出通道数:1 通道

三、关键特性与优势

  • 低压差:在满载 150mA 时压差仅 165mV,有利于在较低输入裕量条件下实现稳定 3.3V 输出,延长电池使用时间。
  • 优良的纹波抑制:75dB@100Hz 的 PSRR 能够有效抑制电源纹波,改善模拟/射频电路供电质量。
  • 完整保护功能:内置过流保护、热关断与反极性电压保护,提升系统可靠性并简化外围保护电路。
  • 噪声旁路端子:支持外接旁路电容进一步降低输出噪声与提升瞬态响应,适合敏感模拟前端。
  • 使能控制:带使能脚,便于软件或外部逻辑控制电源开关,实现低功耗待机或分区供电管理。
  • 小型封装:SOT-23-5 便于空间受限的应用与批量安装。

四、典型应用场景

  • 手持与便携式设备:对体积与电池寿命有要求的消费电子。
  • 传感器与数据采集前端:低噪声、高 PSRR 有利于精密测量电路。
  • 工业控制与仪表:宽工作电压与保护功能提高可靠性。
  • 通信与射频电路:作为射频前端或基带低噪声供电源使用。

五、典型应用与使用注意事项

  • 输入输出电容:为保证稳定与瞬态性能,建议在输入端与输出端分别放置适当的去耦电容(常用低 ESR 陶瓷电容),并靠近封装引脚布局。输出旁路端子(BYP)可接小电容进一步降低噪声,具体容值请参考器件数据手册。
  • 散热与封装限制:SOT-23-5 在高功耗情况下需关注封装温升,布局时应合理铺铜以增强散热。
  • 使能逻辑:使能脚可实现输出开关,接入时请确认所用逻辑电平兼容器件规格。
  • 保护功能配合:反极性、过流和热关断提供基本保护,但在严重短路或高能量反向事件下仍建议采用外部保护措施以提高系统安全性。

六、选型建议

若系统需要低压差、低噪声且输出电流在 150mA 以内的 3.3V 稳压,LP2985AIM5-3.3/TR 能在体积、性能与可靠性之间取得良好平衡。设计时请依据实际工作电压范围、负载纹波与热环境,结合器件完整数据手册确认旁路电容、使能电平及封装热阻等参数,以确保长期稳定运行。

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