WMSIC Electronic Components

LOWPOWER LPW5202ADB5F

ModelLPW5202ADB5F
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 LPW5202ADB5F
Type
LOWPOWER
Minimum package
3000 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LOWPOWER
Electronic Component
LPW5202ADB5F
Electronic Component
1
Package
SOT-23-5
Type
Load Switch
Electronic Component
Power Electronic Switch
Electronic Component
0.04g
Electronic Component
1
Channel Count
1
Features
Voltage; Current; Output
Electronic Component
BM0230633632
Resistor
70mΩ
Operating Temperature
40℃~+85℃
Operating Voltage
2.4V~6V
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.

LPW5202ADB5F 产品概述

一、产品简介

LPW5202ADB5F 是微源半导体(LOWPOWER)推出的一款单通道低侧负载开关器件,封装为 SOT-23-5。器件工作电压范围为 2.4V 至 6V,输入控制为高电平使能(EN 高有效),导通电阻典型值为 70 mΩ,工作环境温度为 -40℃ 至 +85℃。器件集成多重保护功能:过流保护(OCP)、欠压保护(UVP)和过热保护(OTP),适用于便携式/低功耗系统的电源分配与负载控制。

二、关键性能要点

  • 类型:单通道负载开关(Load Switch)
  • 工作电压:2.4V ~ 6V,覆盖常见锂电池及 5V 系统应用
  • 控制逻辑:高电平有效(EN 为高电平时导通)
  • 导通电阻:70 mΩ(典型),实现低功耗损耗与较小的压降
  • 温度范围:-40℃ ~ +85℃
  • 保护功能:过流保护(OCP)、欠压保护(UVP)、过热保护(OTP)
  • 封装:SOT-23-5,体积小、适合空间受限的 PCB 布局

三、保护机制与工作行为

LPW5202ADB5F 集成了多种保护机制,以提高系统可靠性并简化外部保护电路设计。

  • 过流保护(OCP):当负载电流超过内部限流阈值时,器件会限制输出电流或进入脉冲式限流状态,以防止器件和负载过流损坏。限流动作可保护负载短路或突发性过流事件。
  • 欠压保护(UVP):当输入电压低于安全阈值时,器件会阻止不可靠的导通或关闭输出,避免在供电不足时发生异常工作或系统复位问题。
  • 过热保护(OTP):器件内部温度上升到临界值时,OTP 将关闭输出以保护器件;当温度回落到安全范围后,器件通常会自动恢复工作,防止热失控。

(注:以上保护阈值与复位特性请参考具体器件数据手册以获得精确数值与时序)

四、应用场景

LPW5202ADB5F 适用于多种对体积、效率与可靠性有要求的电子系统,包括但不限于:

  • 手机、平板及可穿戴设备的模块级电源控制
  • 智能家居与物联网终端(IoT)中外设上电/下电控制
  • 电池供电的便携设备电源管理与功耗隔离
  • 电源序列化、系统启动管理与外设保护
  • 工业与汽车电子中对开关保护与限流有需求的低压电源分配

五、典型应用与设计注意事项

  • 控制接口:EN 引脚为高电平有效,可直接由 MCU/MPU 的 GPIO 驱动(注意 MCU 输出电平需在器件允许的 EN 电压范围内)。
  • 输入/输出旁路电容:建议在 VIN 端近距离放置低 ESR 陶瓷电容(常见 1μF~10μF 范围,按系统瞬态要求选择),以保证开关瞬态稳定;VOUT 端可根据负载特性放置合适的滤波或退耦电容。
  • 布局与散热:SOT-23-5 封装面积小,但在高功率条件下仍需关注散热。建议在 PCB 上为 VIN/VOUT 引脚区域预留较大的铜箔面积,并采用多层铜平面或加装散热过孔来提高热耗散能力。
  • 导通损耗估算:典型导通电阻为 70 mΩ,举例:在 1A 负载下压降约 70mV,器件耗散功率约 70mW。设计时应根据实际电流估算功耗并验证封装温升是否在安全范围内。
  • 保护联动:若系统对复位或短路恢复有严格要求,可在器件外添加必要的检测或延时电路,配合器件的内部保护获得更可控的行为。

六、封装与采购信息

  • 型号:LPW5202ADB5F
  • 品牌:LOWPOWER(微源半导体)
  • 封装:SOT-23-5(适合表面贴装、占板面积小)
  • 推荐在产品选型或批量采购前,参照最新的数据手册核对引脚定义、最大额定值及典型电气参数,确保与系统设计完全匹配。

七、总结

LPW5202ADB5F 是一款面向中低压电源分配应用的单通道负载开关,具有低导通电阻、宽工作电压范围与多重保护功能,适合电池供电与便携类设备的电源管理。其小型 SOT-23-5 封装便于节省 PCB 空间,但在高电流应用下需注意PCB散热与布局优化。欲获取更详尽的电气参数、保护阈值与时序,请参考微源半导体提供的完整数据手册。

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