WMSIC Electronic Components

ETA ETA1467S2G

ModelETA1467S2G
PackageSOT23-6
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ETA ETA1467S2G
Type
ETA
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ETA
Electronic Component
ETA1467S2G
Electronic Component
1
Package
SOT23-6
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.061g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0264730737
Operating Temperature
40℃~+85℃@(TA);-40℃~+125℃@(TJ)
Operating Voltage
4.5V~18V
Switching Frequency
700kHz
Electronic Component
Electronic Component
Output Voltage
800mV~5.5V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

ETA1467S2G 同步降压转换器产品概述

一、产品定位与核心设计亮点

ETA1467S2G是钰泰(ETA)推出的小封装同步降压型DC-DC转换器,针对空间受限、低功耗、宽电压适配的应用场景优化,兼具高集成度与高可靠性。核心设计亮点包括:

  • 内置同步整流MOS,效率显著高于异步拓扑;
  • 宽输入/输出电压范围,覆盖多类供电与负载需求;
  • 低静态电流设计,适配电池供电的低功耗待机场景;
  • 工业级宽温特性,满足恶劣环境应用;
  • SOT23-6超小封装,适合高密度PCB布局。

二、关键电气参数深度解析

1. 输入输出适配性

  • 输入电压:4.5V18V,可兼容单/双/三/四节锂电池(3.7V16.8V)、5V USB、12V车载电源等主流供电来源,无需额外适配电路;
  • 输出电压:800mV~5.5V可调,通过反馈电阻分压精准设置,覆盖低电压MCU(如0.8V核心)、传感器(1.8V/3.3V)、5V外设等多种负载电压需求。

2. 功率与效率

  • 输出电流:最大3A,可驱动中等功率负载(如小型显示屏、无线模块);
  • 同步整流优势:内置高低侧MOS管,替代传统续流二极管,减少反向电流损耗,典型效率可达90%以上(如3.3V输出、2A负载时),降低发热无需额外散热片。

3. 低功耗与频率优化

  • 静态电流(Iq):仅177μA,待机模式下功耗极低,延长电池续航时间(尤其适合便携设备);
  • 开关频率:700kHz,折中EMI干扰与储能元件尺寸——无需大体积电感/电容,可选用4.7μH功率电感+22μF陶瓷电容,节省PCB空间。

4. 宽温可靠性

  • 环境温度(TA):-40℃~+85℃,满足工业级、车载等常规环境;
  • 结温(TJ):-40℃~+125℃,高耐受能力适配极端工况(如高温车载、户外设备)。

三、典型应用场景覆盖

ETA1467S2G的参数特性使其适配多类场景:

  1. 车载电子:12V车载电源输入,转3.3V/5V驱动行车记录仪、车载蓝牙、胎压监测模块(宽温适配车内-40℃~+85℃环境);
  2. 工业手持终端:条码扫描器、数据采集器(小封装适合手持设备紧凑设计,宽电压适配可充电锂电池);
  3. 便携式医疗设备:血糖仪、血压计(低静态电流延长电池使用时间,3A输出满足显示/传感器负载);
  4. 智能家居节点:智能插座、温湿度传感器(5V/12V输入转1.8V/3.3V,小封装适合小型化设计)。

四、封装与散热优势

  • SOT23-6封装:尺寸仅1.6mm×2.9mm×1.1mm,占用PCB面积极小,适合高密度布局(如耳机盒、智能手表等便携设备);
  • 散热设计:内置同步MOS减少开关损耗,结温125℃的高耐受能力,配合PCB电源走线加粗、散热焊盘优化,可满足3A输出下的散热需求;
  • 集成度优势:内置开关管,无需外部续流二极管,简化电路设计,降低BOM成本与装配复杂度。

五、典型应用电路说明

ETA1467S2G的基本应用电路仅需5类外部元件:

  1. 输入滤波:10μF陶瓷电容(滤除输入纹波);
  2. 电感:4.7μH功率电感(储能元件);
  3. 输出滤波:22μF陶瓷电容(稳定输出电压);
  4. 反馈分压:R1(上拉)+ R2(下拉)(调节输出电压,如3.3V输出时R1=10kΩ、R2=5.1kΩ);
  5. 使能控制:EN引脚可接MCU(高电平使能,低电平关断)。

电路工作原理:输入电压经内置MOS开关降压,电感储能、电容滤波后输出;反馈分压信号实时调节占空比,确保输出电压稳定;同步整流减少反向电流,提升效率。

ETA1467S2G凭借“小封装+宽电压+高集成度+低功耗”的组合优势,成为便携设备、工业与车载领域降压方案的高性价比选择。

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