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ETA ETA3425D2G
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ETA ETA3425D2G
- Type
- ETA
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ETA
- Electronic Component
- ETA3425D2G
- Electronic Component
- 1
- Package
- DFN2x2-6
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 0.052g
- Electronic Component
- 1
- Features
- Electronic Component
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0230129128
- Operating Temperature
- 40℃~+85℃@(TA)
- Operating Voltage
- 2.6V~7V
- Switching Frequency
- 1.4MHz
- 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.
ETA3425D2G 产品概述
一、产品简介
ETA3425D2G 是钰泰（ETA）推出的一款高效率降压型直流-直流开关稳压器，采用同步整流和内置开关管设计，能够在宽输入电压范围下稳定输出。器件工作电压范围为 2.6V 至 7V，输出电压可通过外部分压调整，覆盖 1.11V 至 7V，最大输出电流可达 600mA。器件在无负载或轻载时静态电流极低，典型值约 1µA（规格项级别为 ~1.8µA），非常适合低功耗电源设计。
二、主要特性
- 功能类型：降压型（Buck）
- 输入电压：2.6V ~ 7V
- 输出电压：1.11V ~ 7V（可调）
- 输出电流：最高 600mA
- 开关频率：约 1.4MHz，便于使用体积小的电感与电容
- 同步整流：内置同步整流，提升轻载效率并降低整流损耗
- 静态电流：超低静态电流，典型 ~1µA（规格表项约 1.8µA）
- 保护功能：过流保护（OCP）
- 封装：DFN2x2-6（带热沉/底部焊盘）
- 工作温度：-40℃ ~ +85℃（TA）
三、典型应用场景
- 便携式电池供电设备（单节或多节受限电压范围的电源）
- 物联网模块、传感器节点与可穿戴设备
- 工业控制与消费类电子中对功耗与体积有严格要求的场合
- 需要高开关频率以减小外部被动器件尺寸的电源子系统
四、设计要点与建议
- 电感选择：1.4MHz 开关频率允许使用体积小的电感，推荐选择饱和电流值高于最大输出电流的电感，典型值在 1µH~4.7µH 范围，根据效率/纹波权衡选择。
- 输出/输入电容：优先使用低 ESR 的陶瓷电容以降低输出纹波并提高瞬态响应。输入侧应放置足够的去耦电容以抑制开关噪声。
- 输出电压设置：通过外部分压器设置反馈电压，注意选择高精度电阻以保证输出精度与温漂需求。
- 布局注意：DFN2x2-6 封装带底部散热焊盘，建议焊接到 PCB 大面积地铜层并通过过孔与多层地平面连接以提升散热与稳定性；开关节点走线尽量短，输入电容、输出电感应靠近器件布局以缩短回流环路。
- 散热与可靠性：在高负载或高环境温度场景下关注 PCB 散热设计，保证器件在额定温度范围内工作以避免热关断或寿命下降。
五、封装与可靠性信息
ETA3425D2G 提供 DFN2x2-6 小型封装，适合空间受限的应用。封装底部中央通常带有焊盘用于散热与电气接地，正确的焊盘设计与回流工艺对可靠性和热性能至关重要。器件工作环境范围为 -40℃ 至 +85℃，适合大多数民用与工业类室温应用。
六、优势总结
ETA3425D2G 以其宽输入范围、可调输出、同步整流与超低静态电流等特点，为追求低功耗、小体积与高效率的便携与嵌入式系统提供了理想的电源解决方案。高开关频率和 DFN2x2 小封装使其在减小外部元件尺寸和系统整体占板面积方面具有明显优势，同时内置保护增强了系统可靠性。
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