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MPS MP4317GRE-Z
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MPS MP4317GRE-Z
- Type
- MPS
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MPS
- Electronic Component
- MP4317GRE-Z
- Electronic Component
- 1
- Package
- QFN-20(4x4)
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 0.167g
- Electronic Component
- 1
- Features
- Frequency Synchronous;;; EMI Optimization
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0264926172
- Operating Temperature
- 40℃~+125℃@(TJ)
- Operating Voltage
- 3.3V~45V
- Switching Frequency
- 350kHz~1MHz
- 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.
MP4317GRE-Z 产品概述
MP4317GRE-Z 是一款高集成度、低静态电流的降压型同步开关稳压器，适用于宽输入电压场景的高效率电源设计。器件集成高侧/低侧功率管，支持频率同步与抖频（频谱扩展）以优化 EMI，面向需要高效率、低空载损耗与稳健保护的工业与通信类应用。
一、核心性能概述
- 输入电压范围：3.3V ~ 45V（宽压输入，适应12V/24V系统及更高脉冲环境）
- 输出电压范围：0.815V ~ 42.75V（可调输出）
- 输出电流：最高7A 连续负载能力（受封装与散热限制影响）
- 开关频率：350kHz ~ 1MHz（可编程/同步）
- 静态电流：典型20μA（轻载高效模式下保持极低待机损耗）
- 同步整流：内置（提高效率，简化外部器件）
- 工作温度：-40°C ~ +125°C（器件结温范围）
二、功能特性亮点
- 轻载高效模式（自动降低静态功耗以提升待机效率）
- 频率同步接口，便于多相或多芯片协同工作
- 可调软启动，减少启动浪涌、电源上线冲击
- 过流保护、打嗝限流与热关断，加强系统可靠性
- EMI 优化（抖频/频谱扩展），有利于通过辐射/传导干扰测试
- 工作状态指示，便于系统监控与故障诊断
三、典型应用场景
- 工业控制与自动化电源模块
- 通信设备与基站局部供电
- 车载电子（注意确认车规级认证与吸收瞬态要求）
- 服务器与存储系统的分轨降压电源
- 分布式电源、点对点供电架构
四、设计与布局建议
- 输入端使用足够的陶瓷+电解/钽旁路组合以抑制尖峰与低频纹波；靠近器件放置大容量去耦电容。
- 输出端优先选低ESR陶瓷电容以获得较低纹波与快响应，注意并联电容的热与电压系数。
- 开关节点走线尽量短且成为单点回流区域，频率感应回路与补偿网络布局紧凑，减少环路面积以降低噪声。
- 若需散热，器件底部接地焊盘并配合过孔与散热铜箔扩展，保证在高负载下的稳定温升。
- 依据效率/体积权衡，调整开关频率：高频有利于小型电感与电容但效率略降；低频效率更高但外设体积增加。
五、可靠性与注意事项
- 实际可持续输出电流受封装散热能力与环境温度影响，设计时应按热阻和安全余量选型。
- 45V 最大输入需注意瞬态抑制与输入熔丝/TVS 配合，防止过压瞬态损坏器件。
- 包装信息与详细引脚功能、典型应用电路、热参数请参照 MPS 官方数据手册与参考设计。
六、总结
MP4317GRE-Z 提供宽输入、高电流与低静态电流的组合特性，适合需要高效率、低待机功耗并注重 EMI 表现的降压供电场合。设计时重视布局、输入瞬态保护与散热措施，能充分发挥其性能优势。欲获取封装、典型电路与详细参数，请向 MPS 官方资料或授权代理查询数据手册。
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