WMSIC Electronic Components

MPS MP1477GTF-Z

ModelMP1477GTF-Z
PackageSOT-563
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 22+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MPS MP1477GTF-Z
Type
MPS
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MPS
Electronic Component
MP1477GTF-Z
Electronic Component
1
Package
SOT-563
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.015g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0264890505
Operating Temperature
40℃~+125℃@(TJ)
Operating Voltage
4.2V~17V
Switching Frequency
800kHz
Electronic Component
Electronic Component
Output Voltage
800mV~10V

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

MP1477GTF-Z 产品概述

一、产品简介

MP1477GTF-Z 是一款降压型同步整流 DC-DC 转换芯片,适用于单通道可调输出点供电方案。芯片集成高侧/低侧开关管,工作开关频率为 800kHz,支持输入电压 4.2V ~ 17V,输出电压可调范围为 0.8V ~ 10V,最大输出电流 3A。器件采用 SOT-563 小封装,工作结温范围 -40℃ ~ +125℃,静态工作电流仅 200μA,适合对尺寸、功耗有严格要求的应用场景。

二、主要特性

  • 降压拓扑、单通道可调输出(0.8V ~ 10V)
  • 输入电压范围:4.2V ~ 17V,适配单节锂电池及更高轨供电
  • 最大持续输出电流:3A,同步整流架构提高转换效率与热性能
  • 固有开关频率:800kHz,利于减小外部被动元件体积
  • 低静态电流:Iq ≈ 200μA,支持睡眠/轻载低损耗运行
  • 轻载高效模式(Light-load mode),提高空载与轻载能效
  • 保护功能:过流保护(OCP)与打嗝限流(Hiccup),增强故障容限与系统可靠性
  • 内置功率开关,减小外部布局复杂度与占板面积
  • 封装:SOT-563,适合空间受限的便携或板载应用

三、典型应用场景

  • 电池供电设备:单节锂电池或多节串并混合供电的便携终端、手持设备
  • 工业与通信终端:点对点稳压、传感器前端电源、接口电源管理
  • 嵌入式与物联网设备:低功耗 MCU、无线模块的主/从供电轨
  • 其他需要小封装、高效率及可靠保护的点载电源方案

四、设计与选型要点

  • 外围器件:需选用适配 3A 连续电流能力的电感,低 DCR 有利于提高效率并降低热耗;输入/输出电容建议采用低 ESR 的陶瓷电容,以抑制开关噪声与改善瞬态响应。
  • 热管理:SOT-563 封装体积小,长时间 3A 运行时需注意 PCB 散热,建议采用充足的铜箔、过孔导热到内部或背面大铜面。
  • 布局:开关回路应尽量短且紧凑,输入电容靠近器件电源引脚放置,输出电容靠近输出端,信号地与功率地分区但最终汇合到单一点接地。
  • EMI 与滤波:高频开关下注意开关节点布线及磁场辐射,必要时在输入端添加共模/差模滤波器并在 PCB 布局上优化接地平面。
  • 保护与可靠性:利用器件内置 OCP 与打嗝限流可防止短路与长期过载,但建议在系统级加入必要的输入过压、反接保护及保险元件以强化整机安全性。

五、封装与环境适应性

MP1477GTF-Z 采用 SOT-563 小型封装,便于高密度布板和空间受限设计。器件工作温度范围 -40℃ ~ +125℃(结温),适应工业级温度需求。SOT-563 的热阻相对较高,实际布局时应配合铜箔面积和散热过孔以保证长期稳定工作。

总结:MP1477GTF-Z 结合了宽输入、可调输出、高开关频率与同步整流设计,适用于对体积、效率和保护有较高要求的单通道降压电源场合。在选型与 PCB 实施时重视器件周边被动元件选型与热/EMI 布局,可获得可靠且高效的点载供电解决方案。

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