WMSIC Electronic Components

GATEMODE HM8441Y

ModelHM8441Y
PackageSOT-23-6
BrandGATEMODE
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
GATEMODE HM8441Y
Type
GATEMODE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GATEMODE
Electronic Component
HM8441Y
Electronic Component
1
Package
SOT-23-6
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.046g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0264388136
Operating Temperature
40℃~+85℃
Operating Voltage
4.75V~40V
Switching Frequency
1.6MHz~2.4MHz
Electronic Component
Electronic Component
Output Voltage
800mV~24V

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

HM8441Y 产品概述

一、产品简介

HM8441Y 是捷茂微(GATEMODE)推出的一款降压型同步整流 DC-DC 开关稳压器,针对轻载高效率与工业级输入电压范围优化设计。芯片支持 4.75V 至 40V 宽输入,输出电压可调范围为 0.8V(VREF)至 24V,最大输出电流 1A。内部集成高侧和低侧开关管,典型开关频率 2MHz(1.6MHz~2.4MHz 可变),封装为 SOT-23-6,适合空间受限的移动与工业应用。

二、主要特性

  • 宽输入电压:4.75V ~ 40V,适用于汽车、工业总线与通用电源输入。
  • 可调输出:VREF = 0.8V,输出范围 0.8V ~ 24V,支持多种后级供电需求。
  • 输出能力:持续输出电流最高 1A,内部同步整流提升效率与降低外部元件数量。
  • 高频开关:典型 2MHz 工作频率,利于减小外部电感与电容体积、降低系统尺寸。
  • 低静态电流:Iq = 90μA,轻载时进入高效 PFM 模式,节省静态功耗。
  • 保护与稳健性:内置软启动、热关断、过压保护、短路保护、逐波限流与打嗝限流等多重保护机制。
  • 工作温度范围:-40℃ ~ +85℃,满足工业级温度要求。
  • 封装:SOT-23-6,便于小型化 PCB 布局。

三、功能亮点

  • 轻载高效 PFM 模式:在轻载条件下自动进入脉冲调制以降低损耗,延长系统待机时间。
  • 逐波限流与打嗝限流:兼顾瞬态响应与短路恢复能力,防止长时间过流损坏系统。
  • 内部软启动:限制启动电流冲击,保护输入电源与外围器件。
  • 2MHz 高频化实现小尺寸磁性元件与快速瞬态响应,适合便携与空间受限应用。

四、典型应用场景

  • 汽车与车载电子(车内电源、车载传感器供电)
  • 工业控制与分布式传感节点
  • 通信设备与便携式仪器电源管理
  • 电池供电设备与后备电源方案

五、参考设计与封装建议

  • 推荐采用低 ESR 输入/输出电容与合理滤波,以抑制开关噪声并保证稳定性。
  • 高频工作下建议选用适配频段的电感(低直流电阻)以减小损耗;布局上缩短信号回路,注意热散与地回路完整。
  • SOT-23-6 小封装适合紧凑 PCB,但需留出散热铜箔以提升热性能。

HM8441Y 以高集成度、宽输入范围与轻载高效特性为核心,适合需要体积小、效率高且具备多重保护的降压应用。若需具体参考电路、元件选型或评估样品,可提供进一步设计支持。

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