WMSIC Electronic Components

ETA ETA5055V180DS2F

ModelETA5055V180DS2F
PackageSOT-23-5
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ETA ETA5055V180DS2F
Type
ETA
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
130mV@(200mA)
Electronic Component
ETA
Electronic Component
ETA5055V180DS2F
Electronic Component
1
Package
SOT-23-5
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.037g
Electronic Component
1
Features
Output
Electronic Component
BM0231095466
Operating Temperature
40℃~+85℃
Operating Voltage
5.5V
Output
Electronic Component
Output Voltage
1.8V
Output Current
500mA

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

ETA5055V180DS2F 产品概述

一、产品简介

ETA5055V180DS2F 是钰泰(ETA)面向低功耗与噪声敏感终端的固定输出线性稳压器,输出为正极 1.8V,单通道设计,封装为 SOT-23-5。器件集成过流保护、过热保护和使能功能,静态电流极低,适合电池供电和便携式系统。

二、主要特点

  • 输出电压(固定):1.8V(正极)
  • 最大工作电压:5.5V
  • 输出电流:最高 500mA
  • 静态电流 Iq:4.5 μA(超低静耗,适合休眠/待机)
  • 压差(典型):130 mV @ 200 mA(低压差,有利于低压差输入设计)
  • 电源纹波抑制比 PSRR:94 dB @ 1 kHz(对射频/模拟子系统抑制良好)
  • 保护功能:过流保护、过热保护;带使能(EN)管脚
  • 工作温度范围:-40 ℃ ~ +85 ℃

三、封装与引脚

器件采用 SOT-23-5 小外形封装,适合空间受限应用。常见引脚功能包括 VIN、VOUT、GND、EN(使能)及可能的备用/无连接引脚。具体引脚排列与封装机械图请参阅产品数据手册以确保 PCB 布局和焊接工艺正确。

四、典型应用场景

  • 电池供电的便携设备、可穿戴和物联网终端(低静态电流延长待机)
  • 模拟/ADC/射频前端的局部供电(高 PSRR 减少噪声耦合)
  • 工业控制与传感器节点(宽温度范围)
  • 通用 1.8V 数字芯片供电

五、外部元件与布局建议

  • 输入/输出旁路电容建议使用低 ESR 陶瓷电容(X5R/X7R)。典型:输入 1 μF~10 μF,输出 2.2 μF~10 μF(具体最小值与 ESR 要求参照数据手册)。
  • 电容靠近器件引脚放置,走短回流路径以保证稳定性和 PSRR 表现。
  • EN 管脚可直接拉高到 VIN 实现使能;若需要外部控制,注意电平阈值与上拉阻抗。
  • 地线采用实心平面,VOUT 与 VIN 的走线尽量宽短,减少压降与寄生电感。

六、热设计与安全余量

在高负载情况下需注意功耗与封装散热:功耗近似为 (VIN − 1.8V) × IOUT。举例:若 VIN = 5.0V、IOUT = 500mA,则器件耗散约 1.6W;若 VIN = 3.3V、IOUT = 500mA,则约 0.75W。SOT-23-5 封装散热有限,建议通过加大铜箔面积、使用散热过孔或降低输入电压/输出电流来控制结温,确保不过热触发保护。

七、设计注意事项与建议

  • 若预计长期 500mA 输出,务必验证结温与热饱和情况并在必要时降额使用。
  • 压差规格为 130 mV @ 200 mA,200 mA 以上电流时压差会增加,需评估输入电压裕量以保证输出稳定。
  • 高 PSRR 特性有利于减少电源噪声对敏感模块的影响,但系统级 EMI/PCB 布局仍需优化。
  • 在最终设计前,请参阅钰泰官方数据手册获取精确引脚图、典型电路、最低输出电容与 ESR 要求以及 EN 电平阈值等完整规范。

如需基于具体输入电压、负载情况的热耗计算、外部电容推荐或参考电路图,我可以进一步给出电路示例与 PCB 布局要点。

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