WMSIC Electronic Components

MPS MPQ2178GQHE-AEC1-Z

ModelMPQ2178GQHE-AEC1-Z
PackageQFN-8(1.5x2)
BrandMPS
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
MPS MPQ2178GQHE-AEC1-Z
Type
MPS
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MPS
Electronic Component
MPQ2178GQHE-AEC1-Z
Electronic Component
1
Package
QFN-8(1.5x2)
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.29g
Electronic Component
1
Features
Output
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0227742141
Operating Temperature
40℃~+150℃@(TJ)
Operating Voltage
2.5V~5.5V
Switching Frequency
2.4MHz
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.

MPQ2178GQHE-AEC1-Z 产品概述

一、产品简介

MPQ2178GQHE-AEC1-Z 是 MPS 提供的一款高频降压型 DC-DC 转换器,输入电压范围 2.5V 至 5.5V,输出电压可调 600mV 至 5V,最大输出电流 2A。芯片集成开关管(降压拓扑)、采用非同步整流结构,开关频率高达 2.4MHz,封装为 QFN-8 (1.5×2mm),适合空间受限且对轻载效率和快速瞬态有要求的便携式与工业类应用。

二、主要特性

  • 宽输入电压:2.5V ~ 5.5V,适配单节锂电池及常见 3.3V/5V 电源轨。
  • 可调输出电压:600mV ~ 5V,通过外部电阻分压设定精确输出。
  • 输出能力:最大连续输出电流 2A(需注意热限制与外部器件选择)。
  • 高频开关:2.4MHz,可使用小体积电感和滤波电容,利于 PCB 布局与体积缩减。
  • 低静态电流:静态电流仅 21µA,有利于待机能耗优化。
  • 工作温度范围:-40℃ ~ +150℃(以芯片结温 TJ 标称)。
  • 功能保护与辅助特性:逐波限流、打嗝限流(hiccup)、可调软启动、输出放电以及工作状态指示,有助于系统可靠性与故障诊断。
  • 轻载高效模式:支持轻载下高效工作,改善低功耗场景下的系统寿命。

三、典型应用场景

  • 手持与便携式设备电源管理(单节锂电到系统电压)
  • 工业控制与传感器供电(对温度和可靠性要求高)
  • 通信与物联网节点电源(低静态电流、窄体积)
  • 车载或宽温应用(高 TJ 上限带来更好热裕度)

四、封装与引脚相关(概述)

芯片采用 QFN-8 (1.5×2mm) 小尺寸封装,利于密集布局与热传导。常见外部器件包括电感、输入/输出陶瓷电容、反馈分压电阻、软启动电容和限流相关器件。具体引脚功能与推荐 PCB 布局请参照官方数据手册与参考电路。

五、设计与应用注意事项

  • 热设计:尽管器件可工作至高温,2A 输出时需关注封装散热与 PCB 铜箔面积,必要时加大 GND/BP 散热区。
  • 外部整流:非同步结构通常需配合低正向压降的肖特基二极管以降低开关损耗,器件选型应满足平均及峰值电流要求。
  • 电感与电容:建议选择能承受峰值电流且具有低 DCR 的电感,输出电容选用低 ESR 陶瓷以保证瞬态响应与稳定环路。
  • 软启动与输出放电:利用可调软启动避免上电冲击电流;输出放电功能有助于快速拉低输出以满足系统复位需求。
  • 保护策略:逐波限流与打嗝限流提高短路与过载时的自恢复能力,但在关键应用中仍建议配合外部保护电路以提高可靠性。

六、选型建议与评估

在选型阶段,如需高效率、低静态电流并且要求小尺寸封装,MPQ2178GQHE-AEC1-Z 是较优选择。建议在样片评估时关注:轻载效率曲线、过载/短路响应、热升温特性及在目标 PCB 上的瞬态输出电压跌落与恢复情况。最终设计请以 MPS 正式数据手册与参考设计为准。

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