WMSIC Electronic Components

LOWPOWER(微源半导体) LP5305QVF

ModelLP5305QVF
PackageDFN-8-EP(2x2)
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LOWPOWER LP5305QVF
Type
LOWPOWER
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LOWPOWER
Electronic Component
LP5305QVF
Electronic Component
1
Package
DFN-8-EP(2x2)
Electronic Component
Supervisorand positions IC
Electronic Component
0.017g
Electronic Component
1
Electronic Component
BM0096035011
Operating Temperature
40℃~+105℃
Operating Voltage
3.3V~5V
ICType
Voltage Supervisor
Output Type
Electronic Component
Voltage
5.85V
Static Current(Iq)
400uA
Supervisor Voltage
3

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

LP5305QVF 产品概述

一、产品简介

LP5305QVF 是微源半导体(LOWPOWER)推出的一款三路电源监控器(Power Supervisor),专为对多路电源轨进行欠压监测和复位控制而设计。器件工作电压范围为 3.3V ~ 5V,监测阈值为 5.85V(用于需要检测较高电压轨的场景),输出为开漏(open-drain),在工业级温度范围 -40℃ ~ +105℃ 下稳定工作,静态电流仅 400 μA,适合电池供电及低功耗系统使用。芯片采用 DFN-8-EP (2×2) 小型封装,便于高密度 PCB 布局与良好的散热性能。

二、主要特性

  • 监控通道:3 路独立电压监控输入,适合同时监测多个电源轨或外部参考点。
  • 输出类型:开漏输出,主动拉低实现复位信号,支持多器件线与(wired-OR)连接。
  • 阈值电压:5.85V(适合 5V 轨或通过分压检测更高电压)。
  • 工作电压:3.3V ~ 5V,为常见 MCU/数字系统供电电压兼容。
  • 静态电流:400 μA(典型值),适合低功耗及电池应用。
  • 看门狗/手动复位:不含看门狗计时器和手动复位输入,功能专注于电源监督与复位输出。
  • 工作温度:-40℃ ~ +105℃,满足商用到工业级应用。
  • 封装:DFN-8-EP(2×2),小尺寸且带裸露地垫,利于散热与固连。

三、典型应用场景

  • 单片机(MCU)和 DSP 的可靠上电/欠压复位(POR)。
  • 多电源轨系统的电源顺序监控与故障检测(如主供电、逻辑 3.3V、外设电源等)。
  • 电池供电设备与便携式终端(对低静态电流有要求)。
  • 工业控制、通信设备、路由器与网关等需要稳定复位管理的系统。
  • 电源管理单元 (PMU) 的辅助监控模块。

四、设计建议与注意事项

  • 开漏输出需外接上拉电阻:复位输出为开漏低电平有效,系统设计时需在复位线接入合适阻值的上拉电阻到所需逻辑电平(如 3.3V 或 5V)。
  • 监测高于器件工作电压的电源轨时,使用电阻分压:阈值为 5.85V,可直接用于 5V 轨检测;若需检测更高电压,应采用高阻值分压器将被检测电压降至器件允许范围,并注意分压带来的容差与温漂。
  • 复位脉宽与去抖:LP5305QVF 本身不含手动复位或看门狗功能,如需延时或滤抖,可在复位输出上并联电容形成 RC 延时,或在上层 MCU 软件中实现监测与延迟处理。
  • 电源滤波与去耦:为保证检测精度与稳定性,VCC 及监测输入端应靠近器件放置旁路电容,避免噪声误触发。
  • 温度与可靠性验证:工作温度覆盖宽广,实际应用中仍建议做温度循环与长期工作验证,尤其在工业环境下。

五、封装与订购信息

  • 品牌:LOWPOWER(微源半导体)
  • 型号:LP5305QVF
  • 封装:DFN-8-EP (2×2) 带裸露地垫,便于焊接和散热。
  • 备注:详细的电气参数(阈值精度、迟滞、输出漏电流、复位有效电平时序等)请参考官方 datasheet,以便在设计中准确匹配系统需求。

总结:LP5305QVF 在小体积封装下提供三路电源监控与开漏复位输出,低静态电流与宽温度范围使其在消费、便携及工业应用中都具有良好适配性。设计时注意开漏上拉、分压比例与去耦匹配,可发挥该器件在电源可靠性管理中的优势。

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