WMSIC Electronic Components

MPS MP28167GQ-A-Z

ModelMP28167GQ-A-Z
PackageQFN-16(3x3)
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MPS MP28167GQ-A-Z
Type
MPS
Minimum package
5000 托盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MPS
Electronic Component
MP28167GQ-A-Z
Electronic Component
1
Package
QFN-16(3x3)
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.133g
Electronic Component
1
Features
Built-in LDORegulator;;; Output
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0227741554
Operating Temperature
40℃~+125℃@(TJ)
Operating Voltage
2.8V~22V
Switching Frequency
750kHz;500kHz
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.

MP28167GQ-A-Z 产品概述

一、产品简介

MP28167GQ-A-Z 是 MPS(Monolithic Power Systems)推出的一款升降压型同步开关稳压器,采用降压-升压(buck-boost)拓扑,集成高效内置开关管和同步整流。该器件输入电压范围宽(2.8V~22V),输出电压可调(1V~20.47V),可提供最高 3A 持续输出电流,工作温度范围 -40°C ~ +125°C(@TJ)。封装为 QFN-16 (3×3mm),适合空间受限的中高功率点位供电应用。

二、主要功能与特点

  • 升降压输出,输入电压跨越低压和高压工况仍能稳定输出
  • 宽输入电压:2.8V ~ 22V;输出电压:1V ~ 20.47V,可调
  • 输出电流:最高 3A(连续)
  • 同步整流,内置高侧/低侧开关管,简化外部器件选型与布局
  • 可选开关频率:750kHz 或 500kHz,设计灵活(小体积外设或更高效率)
  • 低静态电流:Iq ≈ 1mA,适合电池供电系统
  • 轻载高效模式(Light-load Efficiency),提升待机与轻载效率
  • 内置 LDO 稳压器,用于内部参考或外置控制电路
  • 可调软启动(Soft-start),抑制启动电流冲击与输出过冲
  • 完善的保护机制:过流保护(可调限流)、打嗝限流、输出放电、保护锁死(保护后锁定)
  • 支持输出可调限流功能,适用于负载限流和电池保护

三、关键参数(概要)

  • 输入电压(VIN):2.8V ~ 22V
  • 输出电压(VOUT):1.00V ~ 20.47V(可调)
  • 输出电流:最大 3A
  • 开关频率:750kHz / 500kHz(可选)
  • 工作温度:-40°C ~ +125°C(结温)
  • 静态电流:约 1mA
  • 封装:QFN-16(3×3 mm)
  • 拓扑结构:降压-升压式(buck-boost)
  • 同步整流:有(内置 MOSFET)

四、工作原理与拓扑说明

MP28167 采用降压-升压拓扑,在输入电压高于、等于或低于目标输出电压时均能稳定工作。内部包含高、低侧同步 MOSFET 以提高转换效率,控制器会根据电感电流与输出电压反馈调整占空比与工作模式。器件提供轻载高效模式以降低静态损耗,频率可选以在尺寸与效率之间做权衡;软启动与可调限流功能有助于控制启动浪涌和系统保护。

五、应用建议与外部器件选型

  • 电感:选择饱和电流高于最大负载电流(建议留 30%~50% 余量)的功率电感;常见电感值范围可在 0.47µH~4.7µH 之间选型,取决于开关频率和电流纹波要求。
  • 输入/输出电容:优先使用 X5R/X7R 陶瓷电容以降低 ESR;输入端应有足够的旁路电容(例如多颗 10µF/22µF 组合),输出端可使用多颗陶瓷并联加少量低频电解或固态电容做能量缓冲与稳定。电容额定电压需高于最大工作电压。
  • 布局要点:输入旁路电容尽量靠近 VIN 与 GND 引脚;开关节点(SW)走线短且远离敏感信号;稳压器的热焊盘应良好接地并与大面积散热层相连。
  • 其他:若需更快启动或特定限流值,可通过外部元件配合软启动及限流引脚调整(以数据手册为准)。

六、保护与可靠性设计

器件集成多重保护机制:可调过流限流、打嗝限流(hiccup)以应对短路或重载、输出放电以确保输出在关断时能快速释放残压、保护锁死功能在安全事件后锁定输出以防重复故障。设计时应合理设置限流阈值与软启动时间,配合外部熔断或热保护措施,确保系统在极端工况下仍能安全恢复或提示故障。

七、封装与散热建议

QFN-16 (3×3mm) 小尺寸有利于高密度应用,但热阻较大,建议在 PCB 下方敷铜大热焊盘并通过多层热盲孔与底层铜箔连接,以提升散热能力。高功率工作时需关注结温上升,布板时保证足够的散热面积和空气流通空间,必要时使用散热铜箔或散热体。

八、典型应用场景

  • 电池供电系统(单节锂电到多电池配置)
  • 工业与通信设备的点位稳压(需要输入跨越的场景)
  • 便携式设备、电源管理模块与电机驱动小功率轨供电
  • 汽车电子外围(需注意整车规范,参考实际认证需求)

总结:MP28167GQ-A-Z 为一款功能全面的升降压同步开关稳压器,适用于输入电压波动大且需稳定输出的中高功率点位供电场景。合理的外部器件选型与 PCB 热设计能充分发挥其高效、可靠与集成化的优势。有关引脚定义、典型应用电路与具体外设建议,请参见原厂数据手册以获取完整参数与布局示意。

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