WMSIC Electronic Components

LOWPOWER LP6261B6F

ModelLP6261B6F
PackageSOT-23-6
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 LP6261B6F
Type
LOWPOWER
Minimum package
3000 个

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LOWPOWER
Electronic Component
LP6261B6F
Electronic Component
1
Package
SOT-23-6
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.066g
Electronic Component
1
Features
Load
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0229474316
Operating Temperature
40℃~+85℃@(TA)
Operating Voltage
1V~5V
Switching Frequency
1.2MHz
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.

LP6261B6F 产品概述

一、产品简介

LP6261B6F 是 LOWPOWER(微源半导体)推出的一款升压型开关稳压器,工作输入电压范围为 1V~5V,固定输出电压为 5V~5.2V。器件内置开关管并采用同步整流架构,开关频率为 1.2MHz,静态电流极低,仅 1µA,工作温度范围 -40℃~+85℃,单通道输出,封装为 SOT-23-6。高开关频率和内置同步MOSFET 使其在体积、效率与电源性能之间取得良好平衡,适合电池供电与便携式应用。

二、主要特性

  • 输入电压:1V~5V,支持低电压启动与升压转化
  • 输出电压:固定 5V~5.2V,适合为 5V 逻辑与外设供电
  • 开关频率:1.2MHz,支持使用小体积电感与陶瓷电容
  • 同步整流:减少整流损耗,提高转换效率
  • 静态电流:Iq = 1µA,极低待机损耗,适合能量受限系统
  • 封装:SOT-23-6,适合体积受限的 PCB 布局

三、典型应用场景

  • 纽扣电池/单节锂电池升压至 5V 的便携设备
  • 传感器、低功耗无线节点与物联网终端
  • 小型电子模块、MCU 外围电源、USB 接口供电转换(需考虑负载能力)
  • 需要长待机寿命的电池供电系统

四、设计与布局建议

  • 输入/输出电容:建议采用 X5R/X7R 陶瓷电容以获得低 ESR 与稳定电压,输入电容靠近 VIN 与地端焊盘布置,输出电容靠近 VOUT 与地。
  • 电感选择:选用低 DCR、饱和电流高于峰值开关电流的电感,以降低铜损与保持稳定输出。1.2MHz 的工作频率允许使用小体积功率电感。
  • 布局要点:开关节点(SW)走线尽量短且远离敏感模拟信号;输入电容、开关器件与地的回流环路应最短并成紧凑布局;GND 建议采用完整平面或多过孔散热路径以利热量释放。
  • 启动与低压工作:器件支持 1V 起动,但在极低输入电压或重负载条件下应验证启动可靠性与上升时间。
  • 保护与可靠性:同步整流有助提升效率,但请在实际应用中参考规格书确认过流、过温等保护特性并据此设计外围电路。

五、封装与热管理

SOT-23-6 小型封装利于紧凑系统设计,但热阻相对较高。高负载情况下注意 PCB 铜厚与散热面积,必要时在地平面加宽、增加过孔以提升热传导性能,保证器件在 -40℃~+85℃ 范围内稳定工作。

六、总结

LP6261B6F 以其 1V~5V 的输入范围、固定 5V 输出、1.2MHz 高频率与超低静态电流的组合特别适合要求小体积、长待机且需升压到 5V 的便携与低功耗应用。设计时重点关注输入/输出滤波、合适电感与合理 PCB 布局,可以充分发挥器件在效率与尺寸上的优势。有关具体性能曲线、最大输出电流及完整电气特性,请以官方数据手册为准。

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