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ETA ETA8123S2G
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ETA ETA8123S2G
- Type
- ETA
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ETA
- Electronic Component
- ETA8123S2G
- Electronic Component
- 1
- Package
- SOT-23-6
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 0.045g
- Electronic Component
- 1
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0231084911
- Operating Temperature
- 40℃~+125℃@(TJ)
- Operating Voltage
- 4V~18V
- Switching Frequency
- 600kHz
- Electronic Component
- Electronic Component
- Output Current
- 3A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ETA8123S2G 产品概述
一、产品简介
ETA8123S2G 是钰泰（ETA）推出的一款降压型同步整流 DC-DC 开关稳压器，封装为 SOT-23-6，支持宽输入电压 4V～18V（具备高达 19V 的过压耐受能力），可持续提供最高 3A 输出电流。器件采用自适应 COT（准固定频率电荷控制）控制架构，结合同步整流与内置开关管设计，实现高效率、小尺寸与优良瞬态响应，适合工业与消费类电子设备的电源管理需求。
二、主要规格与特点
- 输入电压范围：4V ～ 18V（OVP 可耐受至 19V）
- 输出电流：最高 3A
- 开关频率：600kHz（典型）
- 同步整流：内置同步 MOSFET，提高转换效率
- 控制方式：自适应 COT，瞬态响应快、频率稳定
- 静态电流（Iq）：230µA（低待机损耗）
- 工作结温范围：-40℃ ～ +125℃（TJ）
- 保护功能：逐波限流、过流保护、打嗝限流（Hiccup）、过压保护（OVP）
- 封装：SOT-23-6，适用于空间受限的应用场景
三、功能亮点
- 宽输入与高耐压设计，使器件能应对输入浪涌与工业电源波动，应用更可靠。
- 自适应 COT 控制在负载突变时提供快速稳压能力，并在不同工况下维持恒定开关频率，便于 EMI 管理与滤波设计。
- 同步整流与内置开关管降低导通损耗，提升轻载至重载的整体效率，减少散热需求。
- 多重保护：逐波限流与打嗝限流在短路或持续过载时保护器件与负载，过压保护防止输入浪涌损伤下游系统。
四、典型应用场景
- 液晶电视、便携式电视、机顶盒、机顶盒电源管理
- 工业控制与通信设备的局部降压供电
- 便携式多媒体设备与车载电子（满足车载电源瞬态）
- 其他需高效率、宽输入与紧凑封装的电源解决方案
五、设计与布局建议
- 输入端配备低 ESR 陶瓷滤波电容（靠近 VIN 与 GND 引脚）以抑制输入纹波与瞬态尖峰。
- 输出侧选择适配电流的电感（根据效率与纹波要求，常见为几百纳亨至几微亨范围）与低 ESR 输出电容以保证稳定与低纹波。
- 布局时尽量缩小高电流回路面积（输入电容—开关管—电感—输出电容），并将热量导出到 PCB 大地层以提升散热性能。
- 根据应用环境评估散热与热保护，必要时加大铜箔面积或配置散热路径。
ETA8123S2G 凭借宽输入、高效率与稳健的保护机制，是对空间、效率及可靠性有严格要求的中高功率降压设计的理想之选。
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