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KUU SI2301 3A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- KUU SI2301 3A
- Type
- KUU
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- KUU
- Electronic Component
- SI2301 3A
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- 1 P
- Type
- P
- Electronic Component
- MOSFET
- Electronic Component
- 0.035g
- Electronic Component
- 1
- Electronic Component
- BM0264548712
- Operating Temperature
- 55℃~+150℃
- Power Dissipation(Pd)
- 1W
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage(Vdss)
- 20V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SI2301 3A P沟道 MOSFET 产品概述
一、概述
SI2301 为 KUU 品牌一款小封装、高性价比的 P 沟道场效应管，采用 SOT-23 封装，适用于占位空间有限的低压高侧开关与电源管理场合。该器件具有 20V 漏源耐压、最大连续漏极电流 3A、低至 110mΩ 的导通电阻（典型值），在便携设备和电池管理中表现可靠。
二、主要参数
- 类型：P 沟道 MOSFET（增强型）
- 漏源电压 Vdss：20 V
- 连续漏极电流 Id：3 A
- 导通电阻 RDS(on)：110 mΩ（在 Vgs = |4.5 V| 测试条件下典型）
- 阈值电压 Vgs(th)：约 1.0 V
- 总栅极电荷 Qg：约 12 nC（以驱动幅度 2.5 V 测试）
- 输入电容 Ciss：405 pF；反向传输电容 Crss：55 pF；输出电容 Coss：75 pF
- 功耗 Pd：1 W（封装及环境依赖）
- 工作温度范围：-55 ℃ ~ +150 ℃
- 封装：SOT-23
三、性能特点
- 低压降、高侧开关适配：20 V 耐压与较低的 Rds(on) 使其在 3.3V / 5V 系统中作为高侧开关或反向电流控制元件表现优良。
- 低门极电荷：Qc 约 12 nC，便于用低功耗驱动器快速开关，降低驱动功耗与切换时间。
- 小封装、大电流承载：SOT-23 体积小但能承受高达 3A 的连续电流，适合空间受限的应用。
- 宽工作温度：覆盖工业级温度范围，适应复杂环境。
四、典型应用
- 电池管理与反向充电保护（便携设备电源路径控制）
- 便携式设备的高侧开关/负载开关
- 电源切换、插拔检测与电流方向控制
- 低压 DC-DC 转换器的同步或旁路开关
五、驱动与布局建议
- 作为 P 沟道器件，栅极需施加相对于源极的负电压以导通（通常以 |Vgs| 表示），在 3.3V/5V 系统中注意驱动余量。
- 为降低开关损耗和 EMI，建议在门极与源极间并联小阻尼或 RC 网络，以控制开关边沿。
- 布局上靠近电源输入放置并加大地/电源回流面积，尽量缩短漏源走线，配合合适的去耦电容以抑制振铃。
六、封装与热管理
SOT-23 封装尺寸小，散热能力受限，器件功耗 Pd = 1 W 为参考值。若工作在大电流或连续导通工况下，需评估 PCB 铜箔面积及散热路径以避免过热。建议在受热场合采用加大铜箔或敷铜散热措施。
七、采购与使用注意
- 型号：SI2301（KUU）SOT-23 封装，单只供应或小批量备货适用。
- 在选型时注意测试条件（RDS(on) 与 Qg 的测量电压极性/幅度），确认与系统驱动电平匹配。
- 推荐在实际应用中做热仿真与电气验证，确保在最大电流与切换频率下的长期可靠性。
本概述汇总了 SI2301 的关键性能与应用要点，便于工程师在电源管理与开关设计中快速评估该器件的适配性。
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