WMSIC Electronic Components

ETA ETA7017CSE

ModelETA7017CSE
PackageWLCSP0.87x0.87-4
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ETA ETA7017CSE
Type
ETA
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ETA
Electronic Component
ETA7017CSE
Electronic Component
1
Package
WLCSP0.87x0.87-4
Type
Load Switch
Electronic Component
Power Electronic Switch
Electronic Component
0.034g
Electronic Component
1
Channel Count
1
Features
Output
Electronic Component
BM0226547713
Resistor
128mΩ
Operating Temperature
40℃~+85℃
Operating Voltage
1.4V~5.5V
Current
2A

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

ETA7017CSE 产品概述

ETA7017CSE 是钰泰(ETA)推出的一款单通道高侧负载开关,针对便携式和低功耗系统的电源管理而设计。器件以小尺寸封装和宽电压兼容性为特点,适合对电流、功耗和板级空间有严格要求的应用场景。

一、主要参数与特性

  • 类型:负载开关(单通道,高侧)
  • 工作电压:1.4 V ~ 5.5 V,适配多数数字电源域与电池供电系统
  • 最大连续电流:2 A(注意实际应用中需考虑热限与散热)
  • 导通电阻(RDS(on)):128 mΩ(典型或最大值依据数据手册为准)
  • 输入控制逻辑:高电平有效(EN/控制端为高电平时导通)
  • 工作温度范围:-40 ℃ ~ +85 ℃
  • 封装:WLCSP 0.87 mm × 0.87 mm,4 引脚,超小型封装,适合空间受限设计
  • 品牌:ETA(钰泰)

二、性能要点与热量估算

  • 低导通电阻(128 mΩ)在轻载时可有效降低功耗与压降;在满载 2 A 情况下,RDS(on) 产生的结温上升需重视。估算功耗约为 I^2·R = 2^2 × 0.128 ≈ 0.512 W,因此在高电流工作或长时间导通场景下,应采用合适的 PCB 散热设计或降额使用。
  • 宽工作电压使其可直接用于 1.8 V/2.5 V/3.3 V/5 V 等常见电源域的电源切换与控制。

三、典型应用场景

  • 电源门控(Power gating):对传感器、MCU 外设、射频/蓝牙模块等进行供电断开以降低待机功耗
  • 外设电源管理:摄像头模组、显示驱动器、音频放大器等的电源开关
  • 电池供电设备与便携设备:要求小封装与低静态功耗的移动设备
  • 其他低压电源切换场合,需注意不超过器件的 2 A 连续电流限制

四、设计与布局建议

  • 封装体积小,导热能力受限:在 PCB 布局上应使用更宽的电源走线并尽可能增加铜箔面积以便散热;如条件允许,使用散热层或过孔将热量传导到内层/底层铜箔。
  • 输入/输出去耦:在 VIN 和 VOUT 端添加靠近器件的旁路电容(常见 1 µF ~ 10 µF,具体值依据系统瞬态需求调整),以稳定电压和抑制瞬态电流。
  • 控制引脚(EN)布线:避免与大电流或高频信号并行走线,必要时在 EN 端加入上拉/下拉电阻以保证上电态确定。
  • 保护与滤波:在可能存在浪涌或反向电流的场合,增加合适的 TVS 或二极管保护;若负载对入电瞬态敏感,可考虑配合软启动策略或额外滤波。

五、使用注意事项

  • 请参考官方数据手册确认 RDS(on) 在不同电压/温度下的具体典型与最大值,以便进行准确的功耗和热设计。
  • 若系统长期在高电流或高温环境运行,应进行热仿真与实测,以判断是否需要降额使用或更换散热措施。
  • 器件封装为 WLCSP,非常适合尺寸受限的应用,但在手工焊接或返修时注意工艺要求。

六、总结

ETA7017CSE 以紧凑的 WLCSP 封装、宽电压范围和 2 A 的连续电流能力,为便携设备和电源管理模块提供了灵活的高侧负载开关选项。其低导通电阻有助于降低导通损耗,但在接近额定电流时需重视热耗散设计。总体上,ETA7017CSE 适合对空间、功耗与电源控制有较高要求的嵌入式与移动应用。请在设计前参照钰泰官方数据手册获取完整电气特性与推荐应用电路。

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