WMSIC Electronic Components

LOWPOWER LP3102QVF

ModelLP3102QVF
PackageTDFN-10-EP(3x3)
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 LP3102QVF
Type
LOWPOWER
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LOWPOWER
Electronic Component
LP3102QVF
Electronic Component
1
Package
TDFN-10-EP(3x3)
Electronic Component
Charge Pump
Electronic Component
0.095g
Electronic Component
1
Features
Low Noise; /; Low Power
Electronic Component
BM0263574214
Operating Temperature
40℃~+85℃
Operating Voltage
2.5V~4.8V
Switching Frequency
300kHz
Electronic Component
Electronic Component
Electronic Component
5000
Output Voltage(Vout)
5.5V~5.9V;-5.9V~-5.5V

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

LP3102QVF 产品概述

一、器件简介

LP3102QVF 是微源半导体(LOWPOWER)推出的一款集成式双路 DC/DC 电荷泵转换器,内部包含两组低噪声、高效率的电荷泵拓扑,可同时生成一路升压输出(VP)和一路负反相输出(VN)。器件通过内部拓扑切换实现倍压与反相两种工作模式,设计上强调低纹波、低噪声及低功耗待机特性,适合对电源质量要求较高的便携与工业级应用。

二、主要规格

  • 功能类型:升压(倍压)与反相双路输出
  • 输入电压范围:2.5 V ~ 4.8 V
  • 输出电压:VP = 2×Vin 约 5.5 V ~ 5.9 V;VN = −VP 约 −5.9 V ~ −5.5 V
  • 输出电流(Iout):可驱动至 120 mA(负载能力参考值)
  • 开关频率:300 kHz
  • 工作温度范围:−40 ℃ ~ +85 ℃
  • 封装:TDFN-10-EP (3 mm × 3 mm)
  • 特性:低纹波/低噪声架构、倍压/反相拓扑切换、低功耗待机

三、功能特性与优势

  • 低噪声设计:优化的电荷泵开关与时序,降低开关引起的纹波与电磁干扰,适合对模拟前端或音频、传感器电路的供电要求。
  • 拓扑切换灵活:内部支持倍压与反相两种输出拓扑,可同时提供正、负双电源,输出 VN 为 VP 的反相(VN ≈ −VP),便于驱动双极性模拟电路。
  • 高集成度、小尺寸:TDFN-10-EP 小封装减小 PCB 面积,适合空间受限的便携设备。
  • 低功耗待机:具备低静态电流特性,适合电池供电系统以延长待机时间。
  • 稳定的开关频率(300 kHz):在 EMI 与效率之间取得平衡,便于外部去耦和滤波设计。

四、典型应用场景

  • 便携式设备:便携终端、智能穿戴、手持测试仪等需要正负电源的小型系统。
  • 模拟与传感电路:运算放大器偏置、模拟前端供电、传感器驱动。
  • 显示驱动:OLED / 小尺寸显示器的偏压生成。
  • 工业与通信设备:需双极性电源但空间或成本受限的模块化设计。

五、设计与应用建议

  • 外围电容:推荐使用低 ESR 陶瓷电容作为泵电容与输出旁路电容,尽量靠近器件引脚布局以降低走线电感与噪声。
  • 布局与接地:电荷泵高速开关对 PCB 布局敏感,应尽量缩短开关回路和电流环路,单点接地或固体地平面有助于抑制干扰。
  • 热与功耗管理:在高负载(接近 120 mA)或高环境温度条件下,注意封装散热路径与周边铜箔面积,以避免过热降额。
  • 滤波与 EMI:如对 EMI 有更严苛要求,可在输出端加入小电感或 RC 滤波器进一步抑制纹波,但需评估对稳定性的影响。
  • 负载分配:如同时驱动多个子系统,建议评估单输出在峰值负载下的电压跌落,必要时在设计中预留裕量或采用并联后级稳压。

LP3102QVF 以其低噪声、高集成与双路输出能力,为需要正负电源但对体积与功耗敏感的应用提供了一种简洁有效的电源方案。设计时关注去耦、电容选型与 PCB 布局,能够充分发挥器件的性能优势。

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