WMSIC Electronic Components

MPS MPQ3425DL-AEC1-LF-Z

ModelMPQ3425DL-AEC1-LF-Z
PackageQFN-14(3x4)
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 21+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MPS MPQ3425DL-AEC1-LF-Z
Type
MPS
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MPS
Electronic Component
MPQ3425DL-AEC1-LF-Z
Electronic Component
1
Package
QFN-14(3x4)
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.467g
Electronic Component
1
Features
Built-in LDORegulator
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0264890183
Operating Temperature
40℃~+125℃@(TJ)
Operating Voltage
3.1V~22V
Switching Frequency
2MHz
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.

MPQ3425DL-AEC1-LF-Z 产品概述

一、概述

MPQ3425DL-AEC1-LF-Z 是美浦斯(MPS)推出的一款高频升压型开关稳压器,集成开关管并采用升压拓扑,适用于从中低电压向较高电压输出的场合。器件工作电压范围宽(VIN 3.1V~22V),输出可调(VOUT 3.1V~55V),单通道设计,最高输出电流可达 3A,开关频率 2MHz,工作结温 -40℃~+125℃,采用 QFN-14 (3×4mm) 封装,针对汽车级与工业级应用的可靠性和温度范围进行了优化。

二、主要规格与功能

  • 功能类型:升压型(Boost)
  • 输入电压:3.1V ~ 22V
  • 输出电压:3.1V ~ 55V(可调)
  • 最大输出电流:3A
  • 开关频率:2MHz(固定/典型)
  • 同步整流:否(采用外部快速二极管或肖特基)
  • 输出通道数:1
  • 开关管:内部集成开关晶体管
  • 保护与控制:外部补偿回路、内置 LDO 稳压器、可调软启动、过流保护(OCP)
  • 封装:QFN-14(3×4mm)
  • 工作温度:-40℃ ~ +125℃(TJ)

三、典型应用场景

  • 汽车电子(车载点烟器、车载功放偏置、照明驱动等需要高耐压输出)
  • 工业控制与通信设备(需要从 12V/24V 升压到更高栅偏或检测电压)
  • 仪器仪表、便携设备的高压偏置或多级供电
  • 需要小体积、高功率密度的电源解决方案

四、设计要点与建议

  • 外部整流器:由于器件为非同步结构,建议选用低正向压降、高反向耐压的肖特基二极管,反向电压需大于目标输出电压。
  • 电感选择:选用饱和电流高于输出峰值电流、低 DCR、适合 2MHz 工作频率的功率电感,以降低峰值损耗与温升。
  • 输出与输入电容:优先使用低 ESR 的陶瓷电容(X5R/X7R),电压等级需≥实际最大电压的裕量;输入侧做好宽带去耦以抑制瞬态。
  • 外部补偿:器件提供外部补偿引脚,设计时根据负载与输出滤波特性进行环路补偿,常用 Type II/PI 网络以兼顾瞬态响应与稳定性。
  • 可调软启动:通过外接软启动电容限制启动斜率,减小启动冲击电流与输出过冲,适用于多个并联负载或上电顺序受控的系统。
  • 过流保护:内置 OCP 可以防止负载短路或过载,但仍需在 PCB 和外围元件上考虑冗余和热极限。
  • 效率权衡:2MHz 高频率有利于减小被动器件体积,但开关损耗和 EMI 管理难度增加,设计时需要在效率、体积与电磁兼容之间权衡。

五、封装与热管理

QFN-14 (3×4mm) 提供紧凑布局,但对热性能依赖于焊盘设计与 PCB 散热。建议:

  • 在 PCB 下方设计充分的焊盘和多层铜散热通孔(via),以提高热传导;
  • 将开关节点、输入/输出电容及肖特基二极管布局紧凑,缩短高频环路;
  • 对于高功率工作点,评估结温并预留散热余量,必要时采用大面积地平面或散热基板。

六、优势总结

MPQ3425DL-AEC1-LF-Z 以宽输入范围、高输出电压能力和 3A 的输出能力,结合 2MHz 高频率与小型 QFN 封装,适合空间受限且需高压输出的场合。外部补偿与可调软启动提供设计灵活性,内置 LDO 与过流保护提升系统鲁棒性。适当的被动器件选型与良好 PCB 布局能最大化其性能并满足汽车/工业级应用的可靠性要求。

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