WMSIC Electronic Components

ETA ETA1038S2G

ModelETA1038S2G
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 ETA1038S2G
Type
ETA
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ETA
Electronic Component
ETA1038S2G
Electronic Component
1
Package
SOT23-6
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.053g
Electronic Component
1
Features
Load
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0258858425
Operating Temperature
40℃~+85℃
Operating Voltage
1.8V~5V
Switching Frequency
700kHz~1.3MHz
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.

ETA1038S2G 产品概述

一、产品简介

ETA1038S2G 是钰泰(ETA)推出的一款高集成升压型DC-DC转换器,工作电压范围宽(1.8V~5V),输出电流可达1.5A,内部集成开关管并采用同步整流架构,适用于对体积、效率和待机功耗有严格要求的便携式与物联网终端设备。器件采用SOT23-6小封装,工作温度范围为-40℃~+85℃,并提供可调输出电压功能,便于系统设计灵活匹配不同负载需求。

二、主要特点

  • 升压拓扑:典型升压结构,支持将单节电池或低电压总线提升至更高输出。
  • 宽输入电压:1.8V~5V,支持单节锂电(含弱电)启动。
  • 输出能力:最大输出电流1.5A,可驱动中等功率负载或为后端稳压模块供电。
  • 同步整流:采用同步整流以降低整流损耗,提高转换效率,尤其在中高负载下优势明显。
  • 工作频率:可配置于700kHz~1.3MHz范围,支持较小外部元件尺寸,利于空间受限的设计。
  • 低静态电流:静态电流仅约40µA,适合低功耗待机场景。
  • 内置开关管:简化外围器件选择与布局,提升可靠性。
  • 可调输出:通过外部分压电阻设定输出电压,适配多种系统电压需求。
  • 工作温度:工业级温度范围 -40℃~+85℃。

三、典型应用场景

  • 便携式设备电源:将单节电池提升至系统工作电压,延长续航并减小方案体积。
  • 物联网节点/传感器:低静态电流与高集成度适合长期电池供电的无线传感器与网关。
  • 移动通信外设:为蓝牙/LoRa/无线模块提供稳定升压电源。
  • LED驱动与背光供电:中小功率LED驱动场景(需注意恒流控制要求)。
  • 电源管理模块:作为上级升压供电,为后端LDO或降压模块供电。

四、设计与布局建议

  • 电感选择:由于工作频率高(700kHz~1.3MHz),推荐使用低直流电阻(DCR)且能承受峰值电流的功率型绕线或叠层电感。依据输出功率与占空比选择合适电感值(常见取值范围从几µH到十几µH)。
  • 电容选型:输入/输出侧优先采用低ESR陶瓷电容(如X5R/X7R),减小纹波并提高瞬态响应。输入电容应靠近芯片VIN与GND引脚放置。
  • 反馈网络:通过外部分压电阻设定输出电压;注意反馈回路要短且远离开关节点以降低噪声耦合。
  • 布局要点:开关回路(开关管、二极管/同步开关、功率电感、输入/输出大电容)形成的回流环路应尽量小并使用宽铜箔;将GND做为完整接地平面,敏感信号走线远离开关节点。
  • 散热与封装:SOT23-6封装散热有限,高功率应用中需注意器件温升,必要时采用较大铜箔面积或通过热过孔改善PCB散热。

五、优势与选型建议

  • 优势:高集成度(内置开关)、同步整流高效率、低静态电流、宽输入电压与高开关频率使得整体方案体积小、效率好、待机耗电低。
  • 选型注意:若系统需要更高输出电流或更低温升,应评估器件在实际工作点下的效率与热量;选择电感与电容时关注峰值电流、ESR以及温度稳定性;对极端环境需核实器件温漂与长期可靠性。

如需完整典型应用电路、元件清单(BOM)与参考PCB布局图,我可以基于您的具体输入/输出电压与负载条件提供详细设计方案。

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