WMSIC Electronic Components

MPS MPQ2172GJ-AEC1-Z

ModelMPQ2172GJ-AEC1-Z
PackageTSOT-23-8
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MPS MPQ2172GJ-AEC1-Z
Type
MPS
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MPS
Electronic Component
MPQ2172GJ-AEC1-Z
Electronic Component
1
Package
TSOT-23-8
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.076g
Electronic Component
1
Features
Output
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0264356256
Operating Temperature
40℃~+150℃@(TJ)
Operating Voltage
2.5V~5.5V
Switching Frequency
2.6MHz
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.

MPQ2172GJ-AEC1-Z 产品概述

一、核心参数与定位

MPQ2172GJ-AEC1-Z 是 MPS(Monolithic Power Systems)推出的一款高开关频率、同步整流的降压型开关稳压器,面向对体积、效率与汽车级可靠性有高要求的系统设计。器件工作输入电压范围为 2.5V ~ 5.5V,输出电压可调范围为 0.6V ~ 5.0V,最大连续输出电流 2A。器件采用内置开关管和同步整流结构,开关频率为 2.6MHz,封装为 TSOT-23-8,器件设计满足汽车级工况(工作结温 TJ 可达 +150℃@TJ),适合点对点降压、MCU/系统电源及车用电子电源前端等应用。

二、主要特性(突出功能)

  • 输入电压:2.5V ~ 5.5V,支持常见单节锂电和 5V 总线供电。
  • 输出电压:外部可调,范围 0.6V ~ 5.0V,适配多类负载和电压轨。
  • 输出电流:最高 2A 连续输出能力,可驱动中等功率负载。
  • 开关频率:固定 2.6MHz,高频率利于使用更小体积的电感与电容,实现更紧凑的 PCB 布局。
  • 同步整流:内置同步 MOSFET,提高轻载至中载时的效率并降低功耗。
  • 静态电流(Iq):典型 520µA,有利于电池供电系统的待机功耗控制。
  • 保护与控制:逐波限流(cycle-by-cycle current limit)、过流保护、打嗞(hiccup)限流模式;具备输出放电功能与工作状态指示,便于系统检测与安全管理。
  • 封装与可靠性:TSOT-23-8 小封装,适合空间受限应用;AEC 认证等级与高工作温度能力,满足车用与工业级环境要求。

三、功能描述与保护机制

MPQ2172GJ-AEC1-Z 将功率开关(高侧、低侧 MOSFET)集成在芯片内部,实现完整的降压拓扑输出。器件通过固定高频开关控制输出电压,在外接反馈网络(外置电阻)设定目标输出后稳定工作。为了保证系统安全与可靠性,器件集成了多重保护:

  • 逐波限流:在每个开关周期内部检测并限制峰值电流,防止瞬态峰值对器件和外部电感、电容造成冲击;
  • 过流保护与打嗞限流:当发生持续性短路或严重过流时,器件进入打嗞限流(hiccup)模式,周期性尝试恢复输出以降低平均功耗并防止过热或损坏;
  • 输出放电:在关断或禁止状态(EN/使能)下,器件提供输出放电路径,使输出电压快速回落到接地电平,方便系统复位与快速切换;
  • 工作状态指示:器件提供状态引脚或指示机制,便于主控读取运行/故障信息,利于系统异常检测和故障处理。

四、封装与热管理

器件采用 TSOT-23-8 小型封装,便于在受限空间内进行 PCB 布局。由于器件可在高达 +150℃ 的结温下工作,实际应用中仍需关注功率损耗与散热条件:

  • 推荐使用较大铜箔面积(尤其是 VIN、GND 和 SW 节点的散热层)并保证良好焊盘热连接;
  • 选择低 DCR、饱和电流高于 2A 的功率电感,以及低 ESR 的输入/输出陶瓷电容,以降低系统的热耗散。

五、典型应用场景

  • 汽车电子:车载 MCU、电源管理模块、车载传感器和仪表供电(基于 AEC 等级可靠性);
  • 电池供电设备:单节锂电池至系统电压转换、便携式设备和手持终端的主电源轨;
  • 通信与消费类电子:摄像模组、无线通信模块、点对点电源转换场景;
  • 工业控制:低压点对点电源、传感器供电和嵌入式控制单元(ECU)前端。

六、设计建议(快速指南)

  • 电感:选型时优先保证饱和电流 > 2A,尽量选择低 DCR 以减少 conduction loss;
  • 输入/输出电容:使用多层陶瓷电容(MLCC)以降低 ESR,保证高频稳定性;注意输入端加足够的旁路电容以抑制尖峰电流;
  • PCB 布局:尽量缩短 VIN、SW、GND 回路路径,增加铜面积以利散热,信号地与功率地分层管理以降低噪声耦合;
  • 反馈网络与外围器件:合理选择反馈电阻,确保输出在负载与温度变化下稳定;必要时加入补偿网络以改善瞬态响应。

总结:MPQ2172GJ-AEC1-Z 以 2.6MHz 的高开关频率、同步整流与汽车级可靠性为核心优势,适合要求小体积、高效率、智能保护与工业/车规级工作的降压电源设计。若需针对具体应用的典型电路、元件清单或热设计建议,可提供系统输入电压、目标输出电压及 PCB 约束信息以便进一步优化。

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