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ETA ETA5055V120DS2F
Configuration
1 options
Configuration
Electronic Component
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ETA ETA5055V120DS2F
- Type
- ETA
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ETA
- Electronic Component
- ETA5055V120DS2F
- Electronic Component
- 1
- Package
- SOT-23-5
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.06g
- Electronic Component
- 1
- Features
- Output
- Electronic Component
- BM0265128900
- Operating Temperature
- 40℃~+85℃@(Ta)
- Operating Voltage
- 5.5V
- Output
- Electronic Component
- Output Voltage
- 1.2V
- Output Current
- 500mA
- Output Type
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ETA5055V120DS2F 产品概述
一、概述
ETA5055V120DS2F 是钰泰（ETA）推出的一款固定输出低压差线性稳压器（LDO），为单路正向输出设计，典型输出电压为 1.2V，最大输出电流可达 500mA。该器件采用 SOT-23-5 封装，工作温度范围为 -40℃ 至 +85℃（Ta），适用于对低噪声、高效率、低静态电流有要求的电源场合。
二、主要电气参数
- 输出类型：固定（正极）
- 输入工作电压：最高 5.5V
- 输出电压：1.2V（固定）
- 最大输出电流：500mA
- 电源纹波抑制比（PSRR）：94dB（典型）
- 静态电流（Iq）：4.5µA（典型）
- 输出通道数：1
三、主要特性与保护
- 低静态电流：4.5µA 的工作电流使其非常适合电池供电与待机功耗敏感的系统。
- 优越的纹波抑制：高达 94dB 的 PSRR 能有效抑制输入电源噪声，适合模拟、射频及精密采样电路供电。
- 多重保护：内置过流保护（OCP）与过温保护（OTP），在异常工作条件下提供可靠的自我保护。
- 片上使能（EN）引脚：支持外部使能/关断控制，便于系统电源管理与功耗优化。
四、典型应用场景
- 移动/便携设备的核心电源及基带、射频前端、传感器供电。
- 物联网（IoT）、可穿戴设备与低功耗传感节点。
- 精密模拟电路、电A/D 前端及低噪声数字电源需求场合。
- 任何要求 1.2V 稳定电源且需高 PSRR 与低静态电流的系统。
五、封装与热管理
器件采用 SOT-23-5 小型封装，适合空间受限的 PCB 布局设计。由于最大输出电流达到 500mA，功耗与结温需重点关注：实际耗散功率约等于 (Vin − Vout) × Iout。建议在高电流或大压差工况下采用合理的 PCB 散热设计（增大 GND 铜箔面积、添加热过孔等）以降低结温并保证长期可靠性。
六、使用建议
- 输入/输出去耦：建议在输入和输出端按规格书要求配置旁路电容以保证稳定性与瞬态响应；典型设计常采用低 ESR 陶瓷电容。
- 启用控制：通过 EN 引脚实现软启动或电源序列，具体使能电平与时序请参考器件数据手册。
- 保护与可靠性：在设计中应考虑过流与热关断触发条件，避免长时间运行在极限工况下。
七、结语
ETA5055V120DS2F 将低静态电流、高 PSRR 与较大输出能力结合在紧凑的 SOT-23-5 封装中，是面向低功耗与低噪声应用的理想选择。为获取完整的引脚定义、电气特性曲线及典型应用电路，请参照钰泰官方数据手册与参考设计。
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