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ETA ETA1039S2G
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ETA ETA1039S2G
- Type
- ETA
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ETA
- Electronic Component
- ETA1039S2G
- Electronic Component
- 1
- Package
- SOT-23-6
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 0.054g
- Electronic Component
- 1
- Features
- Load
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0257647580
- Operating Temperature
- 40℃~+85℃
- Switching Frequency
- 700kHz~1.3MHz
- Electronic Component
- Electronic Component
- Output Voltage
- 5V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ETA1039S2G 产品概述
一、产品简介
ETA1039S2G 是钰泰（ETA）推出的一款升压型开关稳压器，采用升压拓扑、固定输出设计，集成功率开关，支持同步整流，适合从单节电池或低压电源升压到稳定的 5V 输出。器件封装为 SOT-23-6，工作温度范围为 -40℃ 至 +85℃，静态电流仅 40µA，适合对待机功耗敏感的电池供电场景。
二、主要性能参数
- 功能类型：升压型（Boost）
- 输出电压：固定 5.0V
- 输出电流：最高可达 1.5A（负载能力视输入电压与热能限幅）
- 开关频率：700kHz ~ 1.3MHz（高频工作，利于减小外部电感体积）
- 同步整流：是（内部同步 MOSFET，提高整机效率，降低整流损耗）
- 静态电流：40µA（低静态电流，降低待机损耗）
- 开关管：内置（简化外部功率器件选型与布板）
- 输出通道：单路固定输出
- 封装：SOT-23-6
- 工作温度：-40℃ ~ +85℃
三、优势解析
- 同步整流与内置开关：消除了外部肖特基二极管，减少能量损耗，提高转换效率，适合中高负载工作条件。
- 高频率设计：700kHz~1.3MHz 的开关频率可以使用体积更小的电感与陶瓷电容，有利于便携设备的小型化。
- 低静态电流：40µA 静态电流对电池供电设备非常友好，延长待机时间。
- 小封装：SOT-23-6 便于空间受限的系统集成，适合便携终端及物联网节点。
四、典型应用场景
- 单节锂离子/聚合物电池升压到 5V 的 USB 或外围供电
- 便携式消费电子（便携摄像头、手持仪器等）
- 物联网终端、低功耗传感器网关
- 小型充电或电源模块，需要中等电流的稳压输出场合
五、设计与布局建议
- 外围元件：典型需要输入滤波电容、输出电容与升压电感。由于芯片内置同步开关，无需外部肖特基整流，但仍需关注电感电流能力与饱和电流。
- 电感选择：根据输出电流与开关频率选取合适电感值与电流额定值，保证峰值电流不超过电感饱和电流。
- 电容与 ESR：建议使用低 ESR 陶瓷电容作为输出滤波，减少电压纹波并提升瞬态响应。
- PCB 布局：将输入电容、开关节点电感与输出电容靠近器件布局，缩短高电流回路，提供良好散热通道，SOT-23-6 封装应注意铜箔面积以利热量扩散。
- 温升与热管理：在高负载（接近 1.5A）时注意器件发热，必要时增大铜箔或加散热片以维持可靠工作在 -40℃~+85℃ 范围内。
六、使用注意事项与扩展
选择输入电压范围与负载工况时需评估转换效率与热耗，实际可用输出电流受输入电压、开关频率、外部元件和PCB散热共同影响。产品适用于需要小体积、低待机功耗且要求 5V 输出的电源设计场景。
如需器件数据手册、封装图或典型应用电路图，可向钰泰官方或授权分销商索取 ETA1039S2G 的完整技术资料与评估板信息，以便进行后续的电路验证与量产设计。
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