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MPS MP4581GN-Z
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- MPS MP4581GN-Z
- Type
- MPS
- Unit
- Electronic Component
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- MPS
- Electronic Component
- MP4581GN-Z
- Electronic Component
- 1
- Package
- SOIC-8-EP
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 0.11g
- Electronic Component
- 1
- Features
- Built-in LDORegulator
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0120964237
- Operating Temperature
- 40℃~+125℃@(TJ)
- Operating Voltage
- 8V~100V
- Switching Frequency
- 100kHz~1MHz
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MP4581GN-Z 产品概述
一、概述与核心参数
MP4581GN-Z 是一款高输入电压、同步降压型 DC-DC 转换器，适用于 8V 至 100V 的宽输入范围，输出可调 1V 至 30V，最大输出电流 800mA。芯片内置开关管，开关频率范围覆盖 100kHz 至 1MHz，静态电流仅 15µA，适合对待机功耗有严格要求的应用。单通道输出、SOIC-8-EP 封装（带沉金散热垫），工作结温范围 -40℃ 至 +125℃（TJ）。
二、主要特性与优势
- 宽输入电压：支持高达 100V 的输入，适配工业总线、分布式电源和高压电池场景。
- 同步整流：内置同步 MOSFET，降低整流损耗、提升中高负载效率。
- 低静态电流：15µA 的低 Iq 有利于降低空载和待机功耗。
- 可调输出：通过外部反馈电阻网络灵活设定输出电压，适配多种系统需求。
- 可变开关频率：100kHz–1MHz 的开关频率范围在效率与外部元件体积之间提供可调折衷。
- 封装与散热：SOIC-8-EP 带暴露焊盘，便于热量导出，利于在高功率密度设计中控制结温。
三、典型应用场景
- 工业控制与自动化电源模块（现场设备、传感器供电）
- 通信设备与基站辅助电源
- 分布式供电、楼宇与安防系统
- 高压输入的便携式设备与测量仪器（需按具体认证确认）
四、设计要点与布局建议
- 输入侧：采用低 ESR 陶瓷或钽电容进行输入去耦，电容额定电压应高于最大发电条件（建议留有裕量）。
- 输出侧：选择低 ESR 输出电容以抑制纹波，配合适当电感（电流额定值应大于 800mA）以控制峰值电流和温升。
- PCB 布局：尽量缩短开关节点与输入、输出回路的回路面积；电源地与信号地合理分区，暴露焊盘（EP）可靠焊接以利散热。
- 电阻分压与补偿：采用精度电阻设定输出电压，按官方参考设计调整补偿网络以保证稳定性和瞬态响应。
- 器件耐压与安全：高输入场景需评估元器件耐压、爬电距与安装工艺，防止击穿与漏电。
五、可靠性与保护建议
芯片适用于宽温区间应用。设计中通常需配合过流、过温与欠压保护策略以提升系统可靠性，具体保护细节与曲线请参阅厂商数据手册并遵循推荐外设布局。
六、总结
MP4581GN-Z 以其 8V–100V 宽输入、1V–30V 可调输出、800mA 输出能力和低静态电流特性，适合对体积、效率与高压适应性有较高要求的电源解决方案。合理选择外部电感、电容并做好 PCB 布局与热管理，可在工业与通信等多种场景中实现稳定、高效的降压供电。欲获得详细电气特性、引脚定义及参考设计，请下载并参照 MPS 官方数据手册。
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