WMSIC Electronic Components

SGMICRO SGM2572CDYG/TR SGM2572CDYG

ModelSGM2572CDYG/TR
PackageWLCSP-4B(0.8x0.8)
BrandSGMICRO
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
SGMICRO SGM2572CDYG / TR
Type
WLCSP-4B(0.8X0.8)
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SGMICRO
Electronic Component
SGM2572CDYG/TR
Electronic Component
1
Package
WLCSP-4B(0.8x0.8)
Type
Load Switch
Electronic Component
Power Electronic Switch
Electronic Component
0.044g
Electronic Component
1
Channel Count
1
Features
Current; Output
Electronic Component
BM0230685503
Resistor
34mΩ
Operating Temperature
40℃~+85℃
Operating Voltage
1V~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.

SGM2572CDYG/TR 产品概述

一、产品简介

SGM2572CDYG/TR(品牌:SGMICRO / 圣邦微)是一款单通道负载开关,适用于对电源通断与电源管理有严格控制要求的便携与嵌入式系统。器件输入控制逻辑为高电平有效,工作电压范围宽(1.0V ~ 5.5V),导通电阻典型值为34mΩ,工作温度范围为-40℃ ~ +85℃。封装为 WLCSP-4B (0.8 × 0.8 mm),尾码 TR 表示卷带盘装(Tape & Reel),便于自动贴装。

二、关键参数(摘要)

  • 器件类型:负载开关(单通道,高侧开关常见应用)
  • 控制逻辑:高电平有效(输入置高导通)
  • 工作电压:1.0 V ~ 5.5 V
  • 导通电阻(RDS(ON)):34 mΩ(典型)
  • 工作温度:-40 ℃ ~ +85 ℃
  • 封装:WLCSP-4B,尺寸 0.8 × 0.8 mm
  • 包装形式:TR(卷带盘)

三、主要特点与优势

  • 低导通电阻(34 mΩ),在中低电流场合下可显著降低压降与功耗,改善电源效率。
  • 宽工作电压范围,支持从低电压系统(1V 级)到常见 3.3V/5V 电源轨的通断控制。
  • 小尺寸 WLCSP 封装,有利于空间受限的移动设备、可穿戴与物联网终端的紧凑布局。
  • 高电平有效控制,便于与 MCU/PMIC 的 GPIO 或控制信号直接接口(注意电压兼容性)。

四、典型应用场景

  • 电池供电的便携电子产品:手机配件、蓝牙耳机、可穿戴设备。
  • 电源域管理与电源门控(power gating):按功能开启/关闭外设供电,降低待机功耗。
  • 物联网与传感终端:按需供电传感器或通信模块,延长电池寿命。
  • 模块化电源与热插拔保护(在满足器件电流规格的前提下)。

五、设计与使用建议

  • 电源旁路与去耦:在 VIN 与 VOUT 端靠近器件放置适当的旁路电容(如 1 µF~10 µF 多层陶瓷电容),降低瞬态压降与抑制开关瞬变。具体容值与 ESR 取决于系统的瞬态需求与器件数据手册建议。
  • 热设计:虽 RDS(ON) 低,但 WLCSP 小尺寸导致封装散热能力有限。建议评估最大连续电流下的功耗 P = I^2 × RDS(ON) 与 PCB 热阻,必要时限制峰值电流或分配散热路径。示例:在 1 A 时,Vdrop ≈ 34 mV,功耗约 34 mW;在 2 A 时功耗约 136 mW。
  • 控制接口:控制引脚为高电平有效,确认控制信号电压不超过器件最大输入范围(1.0~5.5V 工作区)。如由更高电压驱动,需加限压或电平移位电路。
  • 软启动与冲击电流:若系统对输入浪涌电流敏感,应在系统层面考虑限流或使用外部软起动方案,或选择带有软启动/限流功能的器件替代。
  • PCB 布局:WLCSP 封装要求精准焊盘设计与回流工艺;为降低热阻与接触不良风险,应按厂家推荐的焊盘与过孔策略布局并保证良好焊接质量。

六、封装与采购信息

  • 封装类型:WLCSP-4B (0.8 × 0.8 mm),适合空间受限的应用。
  • 订购后缀:CDYG/TR(注意 TR 表示卷带盘供货,适合 SMT 自动贴装)。
  • 品牌:SGMICRO(圣邦微),可通过官方渠道或授权分销商获取原厂技术支持与数据手册。

七、注意事项与技术验证

  • 在最终设计中,务必参照 SGM2572 的正式数据手册核对最大额定电流、瞬态性能(如开通速度、关断时间)、ESD 等级及典型应用电路。
  • 进行样机测试时,重点验证:温升与热稳定性、开关瞬态引起的输入纹波、控制信号的电平兼容性以及在极端温度下的功能可靠性。
  • 如需更高电流承载、软启动或过流保护功能,应在器件选择阶段对比可选型号或外加保护电路。

八、总结

SGM2572CDYG/TR 是一款适合中低功耗场合的单通道负载开关,凭借 34 mΩ 的低导通电阻与宽工作电压范围,适用于便携设备与电源域管理场景。其 WLCSP 超小封装适合空间受限设计,但对散热和 PCB 设计提出更高要求。最终应用前应结合完整数据手册与实际电流/热仿真进行验证。

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