WMSIC Electronic Components

GATEMODE HM8089

ModelHM8089
PackageSOT-23-5
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 HM8089
Type
GATEMODE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GATEMODE
Electronic Component
HM8089
Electronic Component
1
Package
SOT-23-5
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.049g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0264388134
Operating Temperature
40℃~+85℃
Operating Voltage
2.5V~5.5V
Switching Frequency
1.2MHz
Electronic Component
Electronic Component
Output Voltage
600mV~5.5V

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

HM8089 产品概述

一、产品简介

HM8089 是捷茂微(GATEMODE)推出的一款降压型同步整流 DC-DC 开关稳压器,封装为 SOT-23-5,适用于 2.5V ~ 5.5V 输入电压范围,输出可调范围 0.6V ~ 5.5V,最大持续输出电流可达 2.5A。芯片内部集成功率开关,采用降压拓扑并在 1.2MHz 的开关频率下工作,适合空间和成本受限的便携与消费电子应用。

二、主要规格一览

  • 功能类型:降压型(Buck)
  • 输入电压:2.5V ~ 5.5V
  • 输出电压:0.6V ~ 5.5V(可调)
  • 输出电流:2.5A(最大)
  • 开关频率:1.2MHz
  • 同步整流:内置(高效率、低损耗)
  • 静态电流(Iq):60µA(低静态电流,省电)
  • 工作温度:-40℃ ~ +85℃
  • 封装:SOT-23-5
  • 通道数:1 路
  • 开关管:内置
  • 典型功能特性:轻载高效模式、逐波限流、过流保护、打嗝限流

三、功能与保护特性

  • 轻载高效模式:在小负载情况下自动进入高效率工作状态,降低静态功耗,延长电池供电设备的待机时间。
  • 逐波限流(cycle-by-cycle):对每个开关周期进行电流限制,避免开关管过流,保护器件与外部电感。
  • 过流保护与打嗝限流:在持续短路或严重过流情况下,芯片进入打嗝保护以减少热耗散并尝试周期性恢复输出,提升系统可靠性。
  • 同步整流:内置同步整流 MOSFET,相比二极管整流效率更高,热损耗更小,适合高电流输出场景。

四、典型应用场景

  • 手机配件、便携式多媒体设备、蓝牙音箱、移动电源管理
  • 可穿戴与 IoT 终端的主电源或子电源
  • 工业/消费类低电压供电模块、摄像头与传感器电源
  • 需要紧凑布局与高效率转换的场合

五、布局与外部元件建议

  • 高频率(1.2MHz)使外围电感、电容尺寸可选用较小规格,利于 PCB 小型化。
  • 输入端建议使用低 ESR 陶瓷电容(例如 10µF22µF),靠近 VIN 与 GND 引脚布置;输出建议 22µF47µF 低 ESR 输出电容以抑制纹波与保证瞬态响应。
  • 外部电感常用 1µH4.7µH(依据输出电流与纹波要求选型);反馈电阻配合可将输出电压在 0.6V5.5V 范围内调节。
  • 常见引脚功能(请以官方资料为准):EN(使能)、VIN、SW、FB、GND。实际引脚排列请参考数据手册以确保准确接线与布线规则。

六、产品优势与适配建议

HM8089 以 SOT-23-5 小封装、低静态电流与内置同步整流为主要卖点,兼顾轻载高效与 2.5A 输出能力,适合对尺寸、效率、成本有综合要求的设计。为保证稳定性与可靠性,推荐在设计初期参考厂家参考电路与 PCB 布局指南,结合实际负载选择合适的电感与输出电容,并做散热与短路保护验证。

如需器件封装图、引脚定义、典型电路与详细电气特性,请查阅 GATEMODE(捷茂微)HM8089 的完整数据手册。

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