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ETA ETA8113S2G
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ETA ETA8113S2G
- Type
- ETA
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ETA
- Electronic Component
- ETA8113S2G
- Electronic Component
- 1
- Package
- SOT23-6
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 0.145g
- Electronic Component
- 1
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0226444640
- Operating Temperature
- 40℃~+85℃@(TA)
- Operating Voltage
- 4.5V~18V
- Switching Frequency
- 500kHz
- Electronic Component
- Electronic Component
- Output Voltage
- 603mV~5.5V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ETA8113S2G 产品概述
一、产品简介
ETA8113S2G 是钰泰（ETA）推出的一款高集成度降压型（Buck）开关稳压器，采用SOT23-6小封装，集成功率开关管，支持同步整流，适合对体积、效率和待机功耗有要求的便携与工业类电源设计。器件工作温度范围广（-40℃+85℃），可为单通道负载提供最高3A的输出能力，输入电压范围覆盖4.5V18V，输出电压可调（603mV~5.5V），开关频率典型值为500kHz，静态电流仅177μA，兼顾性能与能耗。
二、主要特性
- 降压拓扑，单输出通道（1ch）
- 可调输出电压范围：603mV ~ 5.5V
- 输入电压：4.5V ~ 18V，适配单节至多节电池和常见直流总线
- 最大输出电流：3A（视散热与外部元件而定）
- 内置功率开关管，支持同步整流以提升转换效率
- 开关频率：约500kHz，便于在尺寸/效率间取得折中
- 静态电流（Iq）：177μA，利于低功耗与待机应用
- 工作温度：-40℃ ~ +85℃（TA）
- 封装：SOT23-6，利于小型化PCB布局
三、典型应用场景
- 便携式仪器与消费电子（便携充电设备、便携测量仪）
- 工业控制模块与嵌入式系统的局部电源
- 车载辅助电源（在符合输入范围与热条件下）
- 通信设备与IoT节点的稳压电源
四、设计注意事项与建议
- 电感选择：建议选择适用于3A峰值电流、低直流电阻（DCR）且满足500kHz工作频率的功率电感；依据输出纹波与瞬态响应选择合适电感值。
- 电容要求：输入侧使用低ESR陶瓷电容以抑制开关噪声；输出侧采用多层陶瓷电容并配合必要的电解/钽电容以改善低频纹波与稳定性。
- PCB布局：尽量缩短信号走线与高电流回路（开关节点、输入/输出大电流回路）；输入电容靠近器件VIN、GND引脚放置；接地采用单点或星形处理以降低噪声影响。
- 散热管理：SOT23-6封装空间有限，高负载时需关注铜箔散热面积与周围热源，必要时加大顶层或内层散热铜箔并避免密集阻隔铜皮。
- 稳定性验证：由于负载/元件差异可能影响环路相位裕度，推荐在样机上进行环路稳定性与瞬态响应测试并根据需要调整补偿网络（如外部反馈分压和补偿元件）。
- 电磁兼容（EMC）：采用输入滤波、输入电容布置及合理走线可降低辐射与传导干扰；必要时加入共模/差模滤波器。
五、选型与替代考量
ETA8113S2G 适合对封装尺寸、供电效率与低静态电流有平衡需求的设计。若系统对更高电流、更高工作温度或更高开关频率有要求，可在器件族或其他厂商中寻找更高规格型号；反之若追求更低静态电流或更低成本，则考虑超低Iq或更简单的线性/开关方案。
六、结论
ETA8113S2G 在SOT23-6小封装中提供了3A级别的降压能力、可调输出与同步整流功能，工作电压范围和温度范围适用广泛场景。凭借较低的静态电流与500kHz开关频率，它能够在体积受限的应用中实现较好的效率与待机表现。最终设计时请参考器件完整数据手册进行外围元件选择、PCB布局与热设计验证，以保证长期稳定可靠运行。
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