WMSIC Electronic Components

HXY MOSFET HFP6291LR-G1

ModelHFP6291LR-G1
PackageSOT-23-6L
BrandHXY MOSFET
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
HXY MOSFET HFP6291LR-G1
Type
SOT-23-6L
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HXY MOSFET
Electronic Component
HFP6291LR-G1
Electronic Component
1
Package
SOT-23-6L
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.045g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0227148568
Operating Temperature
40℃~+80℃@(TA)
Operating Voltage
2V~24V
Switching Frequency
1.2MHz
Electronic Component
Electronic Component
Output Voltage
2.5V~28V

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

HFP6291LR-G1 产品概述

一、产品简介

HFP6291LR-G1 是华轩阳电子(HXY MOSFET)推出的一款升压型 DC-DC 转换芯片,采用 SOT-23-6L 小封装,内置开关管,面向空间受限且需中高电流输出的便携与工业电源应用。器件支持宽输入电压范围与可调输出,开关频率高,静态电流低,适合高集成度、需长待机与高功率密度的场景。

二、主要特性

  • 功能类型:升压式(Boost)
  • 输入电压:2V ~ 24V
  • 输出电压:可调 2.5V ~ 28V
  • 最大输出电流:4A(器件级)
  • 开关频率:1.2MHz(典型)
  • 静态电流:100µA(Iq)
  • 同步整流:否(需外接肖特基或其他二极管)
  • 开关管:内置功率 MOSFET
  • 输出通道:单路
  • 工作温度范围:-40°C ~ +80°C(Ta)
  • 封装:SOT-23-6L
  • 输出形式:可调电压

三、典型应用

  • 便携式设备电源(手持仪表、手电、移动终端)
  • 工业控制与传感器供电
  • 汽车低压辅助电源(注意环境与温度评估)
  • LED 驱动与电池升压系统
  • 需要小体积高开关频率的点对点升压场合

四、引脚与封装(概述)

采用 SOT-23-6L 小封装,常见引脚包括开关(SW)、输入(VIN)、地(GND)、反馈(FB)、使能(EN/SHDN)等。反馈电阻网络用于设定输出电压;由于为非同步结构,外部肖特基二极管必不可少。具体引脚定义请参照器件数据手册。

五、典型应用电路与选型要点

  • 外围器件:必须配置合适的电感、输入/输出电容、肖特基二极管以及反馈分压电阻。1.2MHz 的高频率允许使用较小电感与电容以降低体积。
  • 电感选型:选择低 DCR、饱和电流高于开关峰值电流的封装,常用量程约 0.47µH~2.2µH(依据输出电压、负载和占空比调整)。
  • 二极管:选用反向电压高于输出的低 Vf 肖特基二极管,电流能力需≥输出电流以减少整流损耗。
  • 电容:输入侧采用低 ESR 电解/固态电容并配合陶瓷旁路;输出侧优先低 ESR 陶瓷或固态以保证稳态/瞬态性能。
  • 反馈与补偿:将 FB 网络及相关补偿元件紧邻芯片布置以保证控制环路稳定。

六、布局、散热与可靠性建议

  • 布局:开关节点(SW)、电感与二极管需紧密布局,走短粗铜迹以降低 EMI 与寄生电感。FB 与 GND 回流路径要最短。
  • 散热:SOT-23-6L 封装散热受限,建议在 PCB 下方/周围拓展铜箔以增强散热,必要时加热沉或多层铜面。
  • 可靠性:器件工作温度为 -40~+80°C(Ta),在高温或持续大电流应用中请留裕量并评估热升温影响;若应用对过压、短路有严格要求,考虑外加保护电路。

总结:HFP6291LR-G1 以其宽输入、可调输出、高开关频率与低静态电流的组合,适合在体积受限但需中高电流升压的场景。正确的外围器件选型与优化 PCB 布局是发挥其性能的关键。欲获取完整电气参数、引脚定义和典型特性曲线,请参照官方数据手册。

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