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ETA ETA2808E8A
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ETA ETA2808E8A
- Type
- ETA
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ETA
- Electronic Component
- ETA2808E8A
- Electronic Component
- 1
- Package
- ESOP8
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 0.166g
- Electronic Component
- 1
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0226444664
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 4.6V~35V
- Switching Frequency
- 250kHz；500kHz；300kHz
- Electronic Component
- Electronic Component
- Output Current
- 3A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ETA2808E8A 产品概述
一、核心特性
ETA2808E8A 是钰泰（ETA）的一款降压型同步整流 DC-DC 转换器，采用降压拓扑、内置开关管，支持可调输出。主要参数包括：工作电压范围 4.6V–35V、输出电流最高 3A、静态电流 Iq ≈ 500µA、工作温度 -40℃ 至 +85℃，封装为 ESOP8。开关频率可选 250kHz、300kHz 或 500kHz。
二、功能与性能亮点
- 同步整流结构：降低导通损耗、提升全负载效率，适合中高效率要求场合。
- 宽输入电压：4.6V–35V 适配多种电源环境（工业、车载电源母线、通信电源等）。
- 低静态电流：500µA 有利于轻载或待机功耗控制。
- 可调输出与单通道设计：便于在不同系统中做电压配置与集中供电。
三、典型应用场景
适用于工业控制、电信设备、仪表仪器、车载电子（请核对车规等级）、消费及嵌入式设备的中低压点供电与电源管理场合。
四、外部元件与设计建议
- 电感：选择饱和电流高于 3A 的屏蔽型或低噪声电感，电感值按开关频率和允许纹波电流选择（通常为数百mA~1A 的纹波目标）。
- 输入/输出电容：建议低 ESR 电解+陶瓷并联，输入端靠近芯片引脚布局，输出端根据纹波要求选择容量与耐压。
- 布局：VIN、GND、SW、输出电容尽量短回路，输入电容靠近 VIN/GND，散热铜箔尽量扩大并做过孔过渡。
五、封装与热管理
ESOP8 封装需注意 PCB 散热设计，建议在芯片下方或邻近区域做大面积散热铜箔并配合过孔散热。高负载或高环境温度时关注结温上升，必要时降额使用或加散热措施。
六、选型与注意事项
- 开关频率选型：250kHz/300kHz/500kHz 三档在效率与元件体积间权衡：低频有利于效率、高频可减小电感/电容尺寸。
- 保护与特性：实际使用前请查阅 ETA 官方数据手册，确认启动/关断、电流保护、短路保护、软启动等具体机制与时序要求。
- 评估指标：在目标负载与环境温度下做热仿真与效率测试，确认电感温升与稳态性能。
如需我根据具体输出电压、开关频率与实际 PCB 限制，给出更详细的外部元件选型与参考原理图布局建议，可提供工作条件与要求。
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