WMSIC Electronic Components

LRC LPB3407LT1G

ModelLPB3407LT1G
PackageSOT-23LC
BrandLRC
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LRC LPB3407LT1G
Type
LRC
Minimum package
3000 个

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LRC
Electronic Component
LPB3407LT1G
Electronic Component
1
Package
SOT-23LC
Electronic Component
1 P
Electronic Component
MOSFET
Electronic Component
0.034g
Electronic Component
1
Electronic Component
BM0264353402
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
1.4W
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
30V
Capacitor(Ciss)
670pF

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

LPB3407LT1G 场效应管(MOSFET)产品概述

LPB3407LT1G是乐山无线电(LRC) 推出的一款P沟道增强型MOSFET,专为低压、小封装、高电流密度场景设计,采用SOT-23LC表面贴装封装,具备低导通电阻、快速开关特性及宽温度适应性,是便携式电子、电源管理等领域的理想选择。

一、产品基本信息

  1. 品牌与型号:LRC(乐山无线电)旗下LPB3407LT1G系列;
  2. 器件类型:P沟道增强型金属-氧化物半导体场效应管(MOSFET);
  3. 封装形式:SOT-23LC(表面贴装小型封装);
  4. 核心定位:低压(30V以下)、高电流(3.8A连续)、低功耗MOSFET。

二、核心电气参数详解

LPB3407LT1G的参数针对低压应用优化,关键指标如下:

1. 电压与电流参数

  • 漏源击穿电压(V₍DSS₎):30V(反向漏源电压,P沟道正向工作电压需低于此值);
  • 连续漏极电流(I₍D₎):3.8A(25℃环境下的最大连续电流,结温升高需降额);
  • 脉冲漏极电流(I₍DP₎):5A(用户描述明确的峰值电流,适配短时大电流场景);
  • 栅源电压范围:支持-20V(P沟道需负偏置导通,典型工作栅压为-4.5V~-10V)。

2. 导通与功率参数

  • 导通电阻(R₍DS(on)₎):60mΩ(典型值,V₍GS₎=-10V时测得,低阻值显著降低导通损耗);
  • 最大耗散功率(P₍D₎):1.4W(25℃时的最大允许功耗,结温超150℃需停止工作)。

3. 电容与开关参数

  • 栅极电荷量(Q₍g₎):14nC(V₍GS₎=10V、I₍D₎=3.8A时的典型值,低Qg提升开关速度);
  • 输入电容(C₍iss₎):670pF(栅源与栅漏并联电容总和,影响驱动难度);
  • 反向传输电容(C₍rss₎):74pF(栅漏电容,降低开关噪声与串扰)。

4. 温度参数

  • 工作结温范围:-55℃~+150℃(符合工业级温度要求,适配极端环境)。

三、关键性能特点

LPB3407LT1G的设计亮点集中在低功耗、小体积、宽温适应性:

  1. 低导通损耗:60mΩ的R₍DS(on)₎在同类小封装中表现优异,3.8A连续电流下导通损耗仅约0.87W(I²R计算),远低于1.4W的最大功耗,可延长便携式设备电池续航;
  2. 快速开关能力:14nC的低Qg及合理电容参数,开关速度快于传统P沟道MOSFET,适配高频负载开关或脉冲驱动;
  3. 宽温度适应:-55℃~+150℃结温范围覆盖工业级需求,可在户外、车载等极端环境稳定工作;
  4. 高电流密度:3.8A连续电流集成在SOT-23LC小封装(约3.0×2.5×1.1mm)中,节省PCB空间,适配紧凑布局;
  5. 可靠性高:LRC成熟工艺确保器件一致性,SOT-23LC封装焊接可靠性满足表面贴装生产线要求。

四、典型应用场景

LPB3407LT1G的参数特性使其广泛适用于以下场景:

  1. 便携式电子设备:手机、平板、智能手表的电源路径开关(低压侧P沟道开关,无需额外升压);
  2. 电池保护电路:锂电池过充、过放、过流保护模块(低导通电阻降低保护时的功耗);
  3. 负载开关:3.7V~5V低压下的负载通断控制(如USB接口电源开关);
  4. 小型电机驱动:玩具电机、微型直流电机驱动(5A脉冲电流满足短时启动需求);
  5. LED驱动:低功耗LED调光电路(P沟道开关配合PWM调光,减少发热)。

五、封装与可靠性说明

  • SOT-23LC封装:3引脚表面贴装,通常定义1=栅极(G)、2=源极(S)、3=漏极(D),尺寸紧凑适配高密度PCB;
  • 焊接可靠性:符合IPC标准的引脚间距与焊盘设计,兼容回流焊、波峰焊工艺;
  • 降额设计:结温超25℃时,连续电流需按1.4W/P₍D₎降额(如125℃时I₍D₎约1.2A);
  • 环保要求:符合RoHS、REACH标准,无铅无卤。

LPB3407LT1G凭借平衡的性能与小封装优势,成为低压P沟道MOSFET市场的高性价比选择,可满足多数便携式及工业低压应用需求。

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