WMSIC Electronic Components

LOWPOWER(微源半导体) LPW5209B5F-21

ModelLPW5209B5F-21
PackageSOT-23-5
BrandLOWPOWER
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
LOWPOWER LPW5209B5F-21
Type
LOWPOWER
Minimum package
3000 个

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LOWPOWER
Electronic Component
LPW5209B5F-21
Electronic Component
1
Package
SOT-23-5
Type
Switch
Electronic Component
Power Electronic Switch
Electronic Component
0.05g
Electronic Component
1
Channel Count
1
Features
Integrated Charge Pump; Current
Electronic Component
BM0229474296
Resistor
80mΩ
Operating Temperature
40℃~+85℃
Operating Voltage
2.5V~6V
Current
2.1A

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

LPW5209B5F-21 产品概述

一、产品简介

LPW5209B5F-21 是微源半导体(LOWPOWER)推出的一款单通道高侧开关,面向便携与嵌入式系统的电源管理应用。器件以单芯片集成的功率 MOSFET 为基础,输入控制为高电平有效,便于与微控制器或逻辑电平直接接口,提供简洁可靠的负载接通/断开功能。

二、主要规格

  • 类型:高侧开关,通道数:1
  • 工作电压:2.5 V ~ 6 V
  • 最大连续电流:2.1 A(注意散热与环境温度影响)
  • 导通电阻:80 mΩ(典型等级)
  • 工作温度范围:-40 ℃ ~ +85 ℃
  • 封装:SOT-23-5

三、保护与可靠性

器件内置热关断(OTP)与短路保护(SCP),可在过温或输出短路时自动限制或切断输出,提升系统可靠性并简化外围保护设计。推荐在严重过载或持续高温工况下配合系统级保护策略使用,以延长器件寿命。

四、封装与引脚说明

SOT-23-5 紧凑封装适合面积受限的板级布局。典型引脚分配包括:电源输入(VCC)、输出(OUT)、输入控制(EN/IN,高电平有效)、地(GND)及备用引脚(如未使用的功能脚)。布板时建议为 VCC 与 OUT 附近配置去耦电容,并在 GND 区域提供良好铜箔,以利散热。

五、典型应用场景

  • 电池供电设备的负载开关与电源分配
  • 传感器、外设的上电/断电控制与节能管理
  • USB/外接电源的电流控制与保护模块
  • 工业与消费类电子中需受控接通的电源路径

六、设计建议

为获得稳定性能,建议在 VCC 与 GND 之间放置低等效串联电阻(ESR)电解或陶瓷去耦(建议 1 μF 或更大,靠近器件引脚);当输出接近额定电流时,应考虑 PCB 熔铜面积或散热措施以降低结温;系统设计中保留短路与过温事件的监控,以配合器件内置保护实现更高可靠性。

七、小结

LPW5209B5F-21 在 2.5–6 V 电压范围内提供 2.1 A 连续能力和 80 mΩ 的低导通电阻,结合 OTP 与 SCP 保护及 SOT-23-5 紧凑封装,是面向低功耗、空间受限系统的高性价比高侧开关选择。使用时关注散热与去耦布局,可充分发挥其稳定、安全的开关特性。

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