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ETA ETA5055V330DS2F
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ETA ETA5055V330DS2F
- Type
- ETA
- Minimum package
- 3000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 90mV@(200mA)
- Electronic Component
- ETA
- Electronic Component
- ETA5055V330DS2F
- Electronic Component
- 1
- Package
- SOT-23-5
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.103g
- Electronic Component
- 1
- Features
- Output
- Electronic Component
- BM0257512591
- Operating Temperature
- 40℃~+85℃@(Ta)
- Operating Voltage
- 5.5V
- Output
- Electronic Component
- Output Voltage
- 3.3V
- Output Current
- 500mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ETA5055V330DS2F 产品概述
一、简介
ETA5055V330DS2F 是钰泰（ETA）推出的一款固定输出 3.3V 低压差线性稳压器，面向对低噪声、高效率与低静态电流有要求的电源设计场景。器件采用 SOT-23-5 小封装，适合空间受限的便携与嵌入式应用，提供齐全的保护功能与使能控制，便于系统电源管理与节能设计。
二、主要规格
- 输出类型：固定（3.3V）
- 最高工作电压（Vin）：5.5V 适用场合
- 最大输出电流：500mA
- 压差（典型）：90mV @ 200mA
- 电源纹波抑制比（PSRR）：94dB @ 1kHz
- 静态电流（Iq）：4.5μA
- 工作温度：-40℃ ~ +85℃（Ta）
- 封装：SOT-23-5
- 输出极性：正极，单通道输出
三、关键特性与保护功能
- 低压差设计：在中等负载下拥有极低的压差，适合低压差供电场景，延长电池使用时间或在有限头部空间下维持输出稳定。
- 高 PSRR：94dB（1kHz）显著抑制电源纹波与开关噪声，适合对模拟、RF 或 ADC 等噪声敏感模块的供电。
- 超低静态电流：4.5μA 的待机电流利于电池供电设备实现长期待机与低功耗策略。
- 保护机制：集成过流保护（OCP）、过热保护（OTP）、短路保护，且带使能（EN）引脚，便于系统软开关与序列上电控制。
四、典型应用场景
- 电池供电设备（便携终端、可穿戴）
- IoT 终端、传感节点、低功耗 MCU 平台
- 对电源噪声敏感的模拟前端、AD/DA 以及 RF 模块
- 工业嵌入式控制、通信接口电源
五、使用与布局注意事项
- 输入/输出电容：请参考原厂资料选择合适的输入与输出滤波电容。一般建议将输入电容靠近 Vin 引脚，输出电容靠近 Vout 与地，引脚间尽量缩短走线以降低寄生感抗。
- 使能控制：利用 EN 引脚实现电源的软开关或电源序列控制，EN 逻辑电平与时序应满足器件规格。
- 地线与走线：为保证 PSRR 与稳定性，建议采用完整地平面并将敏感模拟地与数字地合理分隔后在单点汇流；保持输出回流路径短且宽。
- 引脚定义与接线请参考原厂封装资料，避免因接线错误影响热性能与保护动作。
六、热设计与功耗估算
线性稳压器的耗散功率 Pd = (Vin - Vout) × Iout。举例：若 Vin 为 5V、Vout 为 3.3V、Iout 为 500mA，则 Pd ≈ (5 - 3.3) × 0.5 = 0.85W。SOT-23-5 封装在高功耗情况下需要关注 PCB 热阻与环境散热能力，必要时应通过铜箔散热、加大焊盘面积或降低平均负载来控制结温，避免过热保护频繁触发。
七、封装与采购信息
- 品牌：ETA（钰泰）
- 型号：ETA5055V330DS2F
- 封装：SOT-23-5（适合紧凑型电路板）
- 订购及详细参数（引脚定义、典型应用电路、完整电气特性表和外形尺寸）请参阅钰泰官方数据手册与样片说明，以确保在特定工况下的正确选型与可靠应用。
如需进一步的典型电路图、输入/输出电容建议值或热仿真参考数据，可提供您的典型工作电压与负载条件，我将给出更具体的设计建议。
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