WMSIC Electronic Components

ETA ETA3486S2F

ModelETA3486S2F
PackageSOT23-5
BrandETA
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ETA ETA3486S2F
Type
ETA
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ETA
Electronic Component
ETA3486S2F
Electronic Component
1
Package
SOT23-5
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.059g
Electronic Component
1
Features
EMI Optimization
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0257282487
Operating Temperature
40℃~+85℃
Operating Voltage
2.6V~5.5V
Switching Frequency
1.5MHz
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.

ETA3486S2F 产品概述

一、产品简介

ETA3486S2F 是钰泰(ETA)推出的一款降压型开关稳压器,采用降压拓扑、内置功率开关和同步整流,单通道输出,可调输出电压范围0.6V~5.5V。器件工作电压范围为2.6V~5.5V,最高输出电流为1A,开关频率为1.5MHz,工作温度范围为-40℃~+85℃,封装为SOT23-5,适用于对尺寸与效率有较高要求的便携与嵌入式应用。

二、主要特点

  • 输入电压:2.6V~5.5V,适配单节锂电池及5V系统供电。
  • 输出电压:可调,0.6V~5.5V,通过外接分压电阻设置目标电压。
  • 输出电流:最高1A,内部集成开关管,减少外部器件数量。
  • 同步整流:内部同步MOSFET降低整流损耗,提高中低电流效率。
  • 高频率工作:1.5MHz 开关频率,支持更小体积的电感与输出电容,利于紧凑化设计。
  • 宽温度范围:-40℃~+85℃,适合工业级与消费类环境。

三、典型应用

  • 单节锂电池电源管理(便携设备、可穿戴)
  • 工业控制与传感器供电模块
  • 路由器、智能家居终端的辅助电源
  • LCD驱动与DSP/MCU电源降压方案

四、外部元件选择与注意事项

  • 电感:受1.5MHz频率影响,推荐中小值电感(例如1µH~4.7µH),依据输出电流与允许纹波选择饱和电流足够的型号。
  • 输入电容:建议使用低ESR陶瓷电容(X5R/X7R),靠近VIN和GND以抑制输入纹波与瞬态。
  • 输出电容:选择低ESR陶瓷电容以减少输出纹波并保证环路稳定性,必要时并联薄膜/钽电容改善瞬态。
  • 反馈网络:通过外接分压电阻设定输出电压,布线应避开噪声节点以保证精度。
  • 关断与使能:若需低静态电流或关断功能,请参考数据手册确认EN/SHDN功能与拉电平要求。

五、PCB布局与热管理

  • 将输入电容、开关节点电感与输出电容尽量靠近芯片布置,缩短高频回路环路面积。
  • 将反馈线远离开关噪声源,走线尽量短且靠近GND平面。
  • SOT23-5 封装热阻较大,建议在芯片下方与周围布置较大片铜箔和多层过孔以散热。长时间高电流工作时注意热升高对效率与可靠性的影响。

六、封装与订购信息

  • 封装:SOT23-5,适合空间受限的设计。
  • 品牌:ETA(钰泰)。
  • 订购与具体引脚、典型应用电路、电气特性与封装图请参考ETA3486S2F的官方数据手册,以获取完整的参数与推荐设计指南。

以上为ETA3486S2F的概述与设计建议,可作为初步选型与电路设计参考。详细电气参数、典型性能曲线与应用电路请以厂家数据手册为准。

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