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XNRUSEMI XR20P70F
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- XNRUSEMI XR20P70F
- Type
- XNRUSEMI
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- XNRUSEMI
- Electronic Component
- XR20P70F
- Electronic Component
- 1
- Package
- PDFN5060-8L
- Electronic Component
- 1 P
- Type
- P
- Electronic Component
- MOSFET
- Electronic Component
- 1g
- Electronic Component
- 1
- Electronic Component
- BM0264974372
- Electronic Component
- Electronic Component
- Electronic Component
- 5000
- Voltage(Vdss)
- 18V
- Capacitor(Ciss)
- 6.6nF
- Output Capacitor(Coss)
- 460pF
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
XR20P70F 产品概述
一、产品简介
XR20P70F 是 XNRUSEMI（新锐）推出的一款高单元密度沟槽式 P 沟道 MOSFET，采用 PDFN5060-8L 紧凑封装，针对同步降压转换器和电源路径管理场景优化。器件通过全功能可靠性认证，符合 RoHS 与绿色环保要求，适合对导通损耗与开关性能有较高要求的低压大电流应用。
二、主要电气参数
- 类型：P 沟道 MOSFET
- 漏源电压 Vdss：18 V
- 连续漏极电流 Id：70 A
- 导通电阻 RDS(on)：3.6 mΩ @ Vgs = 4.5 V（注：P 沟道为负栅压驱动，标称值按 |Vgs| 表示）
- 阈值电压 Vgs(th)：0.65 V（典型）
- 总栅极电荷 Qg：76 nC @ 4.5 V
- 输入电容 Ciss：6.6 nF
- 反向传输电容 Crss：659 pF
- 输出电容 Coss：460 pF
- 封装：PDFN5060-8L
三、性能与应用要点
- 低 RDS(on) 与高电流能力使其在低压大电流场景（如 5V/3.3V 电源的同步整流、负载开关）中具有优势。
- Qg=76 nC 属于中等偏高水平，意味着在高开关频率下栅极驱动损耗不可忽视。示例：在 500 kHz、|Vdrive|=4.5 V 时，栅极驱动功率约为 P = Qg·Vdrive·f ≈ 0.17 W。
- Crss 较大（659 pF），在开关瞬态中易产生米勒效应，需在驱动和布局上做好抑制，避免栅极振铃或误导通。
四、设计与布局建议
- 栅极驱动：尽量使用能提供稳定 |Vgs|≈4.5 V 的驱动器，必要时采用合适的栅阻以抑制振铃并控制开关速度。
- PCB 布局：尽量缩短电流回路（漏-源主回路）和栅极回路路径，增大散热铜箔面积并布置热通孔以降低结到环境热阻。
- 保护措施：考虑在栅极增加 RC 缓冲、在关键节点加 TVS 或缓冲元件以应对瞬态过压；在并联场合注意均流与热平衡。
- 封装利用：PDFN5060-8L 提供良好散热面，可通过底部大铜焊盘与多层板连接实现高效散热。
五、典型应用场景
- 同步降压转换器（作为高侧或辅助开关）
- 负载开关与电源路径管理（电池保护、电源切换）
- 便携式设备和通信设备的低压大电流电源模块
- 逆流保护与功率分配电路
六、结论
XR20P70F 集成了低导通电阻与较高电流容量，适合对导通损耗敏感的低压电源应用。设计时需关注栅极电荷与米勒电容带来的驱动与瞬态影响，通过合理的驱动方案和 PCB 热管理，可在同步降压与电源管理应用中获得优秀的效率与可靠性。若需进一步的 PSpice 模型、热阻数据或特性曲线以完成系统级仿真，请告知，我可协助提供推荐的测试与验证方法。
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