WMSIC Electronic Components

MPS MPM3822CGRH-Z

ModelMPM3822CGRH-Z
Package18-QFN(2.5x3.5)
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MPS MPM3822CGRH-Z
Type
MPS
Minimum package
2500

Technical parameters

Electronic Component
MPS
Electronic Component
MPM3822CGRH-Z
Electronic Component
1
Electronic Component
3.5mm
Package
18-QFN(2.5x3.5)
Electronic Component
DC-DC Power Supply Module
Electronic Component
0.078g
Electronic Component
2.5mm
Electronic Component
1.6mm
Electronic Component
1
Features
Programmable Output Voltage
Type
Electronic Component
Electronic Component
BM0264909763
Operating Temperature
40℃~+150℃
Switching Frequency
1.15MHz
Electronic Component
5mVp-p

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

MPM3822CGRH-Z 产品概述

MPM3822CGRH-Z 是 MPS 推出的一款高集成、低噪声降压型电源管理模块,适用于 2.75V 到 6V 的输入电压范围,可提供最高 2A 的稳定输出电流。该模块以高开关频率(1.15MHz)和紧凑封装(18‑QFN,尺寸 2.5 × 3.5 × 1.6 mm)为特点,能够在空间受限且对噪声和效率有要求的系统中提供可靠的电源解决方案。

一、主要特性摘要

  • 功能类型:降压型(Buck)模块
  • 输入电压:2.75V ~ 6V
  • 输出电压:可编程 0.6V ~ 6V,精度 ±1.5%
  • 最大输出电流:2A
  • 转换效率:典型值 82%
  • 静态电流(Iq):500 μA(空载或待机态低功耗)
  • 纹波噪声:5 mVp‑p(低输出噪声,适合对噪声敏感的模拟/射频电路)
  • 开关频率:1.15 MHz(有利于缩小外部滤波器体积)
  • 最大容性负载:100 μF
  • 工作温度范围:-40 ℃ ~ +150 ℃
  • 封装:18‑QFN(2.5 × 3.5 × 1.6 mm)
  • 品牌:MPS

二、保护与控制功能

MPM3822CGRH-Z 集成完整的电源保护和控制机制,提升系统可靠性:

  • 过流保护(OCP):限制输出电流,防止元件因过载受损。
  • 短路保护(SCP):在输出短路时进入保护状态并防止损坏。
  • 欠压保护(UVP):输入或输出电压异常时自动响应,保护负载与模块。
  • 过热保护(OTP):当温度超过安全阈值时自动关断并在温度恢复后自动故障恢复。
  • 上电时序控制与自动故障恢复:保证模块在系统上电时平滑启动,并在故障解除后自动重试恢复,简化系统控制逻辑。

三、典型应用场景

  • 便携式电子设备(手持终端、移动摄像机、便携式测量设备)
  • 电池供电系统(锂电池、单节/多节电池轨)
  • 物联网节点、无线通信模块与传感器供电
  • 工业控制和嵌入式系统的本地稳压电源
  • 对噪声敏感的模拟前端或 RF 子系统电源

四、设计与布局建议

为获得最佳性能,推荐的 PCB 设计与外部元件注意事项包括:

  • 输入与输出电容:使用低 ESR 的陶瓷电容作为输入旁路(例如 10 μF〜22 μF),输出电容选用 10 μF〜100 μF 的陶瓷电容,确保纹波和瞬态响应满足要求。模块支持最大并联容性负载 100 μF。
  • 分流与反馈电阻:模块为可编程输出电压,参考基准为 0.6V,可通过外部分压器设定输出电压:Vout = 0.6 × (1 + Rtop/Rbottom)。选择合适阻值以兼顾静态电流与抗干扰能力(常用总阻值范围几十 kΩ)。
  • 布局要点:将输入电容尽可能靠近模块 VIN 引脚放置,输出回路走线短且粗,反馈走线尽量靠近模块反馈节点并远离开关节点以减少噪声耦合。推荐使用包含地平面和电源层的 4 层板以优化散热与 EMI。
  • 散热管理:在高负载或高环境温度下注意模块发热,给模块底部的散热焊盘良好焊接并提供热通道到内层/底层地平面,必要时在板上加热沉或改善空气对流以保证长期可靠性。
  • 过滤与 EMI:若系统对 EMI 有更高要求,可在输入端增加 RC/L-C 滤波或在输出端增加小电感和 PI 滤波器,但需保证不会超过模块对输出容性负载的限制。

五、选型与注意事项

  • 输入电压需始终在 2.75V~6V 范围内;若存在瞬时浪涌或电压跌落,需评估对模块保护门限的影响。
  • 输出电流峰值接近 2A 时,模块效率与热耗会显著变化,请根据实际工况评估降额与散热方案。
  • 模块适合需要快速响应与低噪声的应用,但如需更高效率或更大电流,应考虑更高规格的解决方案。

MPM3822CGRH-Z 以其高集成度、紧凑尺寸、丰富的保护措施和低噪声特性,适合用于消费电子、便携式设备与工业嵌入式电源设计中,能在有限 PCB 面积内提供可靠且稳定的电源输出。若需参考电路图、布局范例或详细引脚说明,请结合官方数据手册进行后续布局与验证。

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