WMSIC Electronic Components

LOWPOWER LPW5206B5F

ModelLPW5206B5F
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LOWPOWER LPW5206B5F
Type
LOWPOWER
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LOWPOWER
Electronic Component
LPW5206B5F
Electronic Component
1
Package
SOT-23-5
Type
Switch
Electronic Component
Power Electronic Switch
Electronic Component
0.051g
Electronic Component
1
Channel Count
1
Features
Integrated Charge Pump; Current
Electronic Component
BM0228785269
Resistor
160mΩ
Operating Temperature
40℃~+85℃
Operating Voltage
2.5V~6V
Current
600mA

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

LPW5206B5F 产品概述

LPW5206B5F 是 LOWPOWER(微源半导体)面向便携与工业电源管理场景推出的一款单通道高侧开关。器件在 2.5V 至 6V 的工作电压范围内提供高效、安全的负载通断控制,最大连续电流达 600mA,适合对体积、功耗和可靠性有较高要求的系统。

一、核心参数一览

  • 类型:高侧开关(单通道)
  • 通道数:1
  • 输入控制逻辑:高电平有效(当输入端为高电平时导通)
  • 最大连续电流:600 mA
  • 工作电压:2.5 V ~ 6.0 V
  • 导通电阻(RDS(ON)):160 mΩ
  • 工作温度:-40 ℃ ~ +85 ℃
  • 保护特性:过热保护(OTP),短路保护(SCP)
  • 封装:SOT-23-5
  • 品牌:LOWPOWER(微源半导体)

二、主要特性与优点

  • 低导通电阻(160 mΩ):在 600mA 电流水平下,器件上耗散的导通损耗约为 I^2·R ≈ 0.0576W(≈57.6mW),有利于降低功耗与发热,适用于电池供电或对效率敏感的系统。
  • 宽工作电压范围(2.5V–6V):覆盖主流 2.5V/3.3V/5V 系统,兼容多种电源方案。
  • 高电平有效控制:可由单片机或逻辑电路直接驱动,控制简单方便(注意驱动电平需与器件供电电压兼容)。
  • 完善的保护机制:内置短路保护与过热保护,能在异常工况下限制电流或切断输出,提升系统可靠性并简化外部保护设计。
  • 紧凑封装:SOT-23-5 小封装,有利于降低 PCB 面积并适应空间受限的应用场景。

三、典型应用场景

  • 电源管理与电源分配:对子系统、外围器件或模块实现软开关(power gating)。
  • 电池供电便携设备:例如便携式仪表、可穿戴设备、移动终端等,需要低损耗的电源开关。
  • 外设电源控制:LED 驱动限流、传感器或通信模块的供电控制。
  • USB/5V 外设开关与保护:在满足电流与规范的前提下,可作为外设供电开关使用以实现节能与过流保护。
  • 工业控制与仪器:需在广温度范围内稳定工作的负载开关。

四、典型电路与使用建议

  • 接法概述:VIN 连接电源(2.5–6V),OUT 连接负载,IN 为逻辑控制输入(高有效)。关断时 OUT 接近开路,导通时通过内置 MOSFET 向负载供电。
  • 去耦电容:建议在器件 VIN 旁放置适当的去耦电容(如陶瓷 1μF~10μF),以抑制上电瞬态和负载突变引起的电压波动。
  • 控制兼容性:器件在 2.5–6V 供电范围内工作良好。若使用不同电平的 MCU 驱动(如 3.3V 或 5V),请确保控制引脚电压与器件推荐值相容,避免直接将高于器件最大输入电压的电平施加到 IN 引脚。
  • 负载与布线:当驱动接近最大连续电流时,应采用较宽的 PCB 铜箔和短的回流路径以减小寄生阻抗与发热。若负载在开关瞬时有大冲击电流,需适当增加去耦或软启动方案。

五、热管理与保护行为说明

  • 过热保护(OTP):当内部温度超过安全阈值时,OTP 会触发以限制或关闭输出,避免器件损坏。触发后通常在温度恢复到安全范围后自动恢复导通。
  • 短路保护(SCP):器件可在短路或过流条件出现时限制电流或进入保护模式,从而保护器件与系统负载。不过具体触发门限与响应行为视器件内部设计,不同工况下表现可能不同,建议在设计中保留足够的保护裕量并在必要时加入外部限制元件(如保险丝、限流电阻等)。
  • 封装热散:SOT-23-5 为小体积封装,散热能力有限。若长期接近最大额定电流或工作在高环境温度下,建议在 PCB 设计上采用较大铜面积散热、必要时布置过孔或散热铜箔以改善散热性能。

六、封装与封装实用建议

  • SOT-23-5 封装适合表面贴装装配,有利于小型化设计。
  • 推荐做法:给 VIN/OUT 引脚设计较宽的铜箔,引出大面积地或电源平面以利散热;在需要时增加热过孔连通多层板的内部或底层铜层;控制信号线走短且远离噪声源,必要时加滤波或 RC 延时以防止误触发。

总结:LPW5206B5F 将低导通损耗、宽电压范围与必要的保护功能集成在紧凑的 SOT-23-5 封装中,适用于便携与工业等多种场合的高侧电源开关需求。在实际设计中,注意去耦、PCB 散热以及控制电平兼容性,即可发挥器件的高效与可靠特性。若需详细电气参数与典型波形(如开通延时、保护门限、输入阈值等),建议参考官方数据手册或咨询 LOWPOWER 技术支持。

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