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HXY MOSFET 78L08
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- HXY MOSFET 78L08
- Type
- HXY MOSFET
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HXY MOSFET
- Electronic Component
- 54uV
- Electronic Component
- 78L08
- Electronic Component
- 1
- Package
- SOT-89
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.156g
- Electronic Component
- 1
- Electronic Component
- BM0258662159
- Operating Voltage
- 30V
- Output
- Electronic Component
- Output Voltage
- 8V
- Output Current
- 100mA
- Output Type
- Electronic Component
- Output Channel Count
- 1
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
HXY MOSFET 78L08（SOT-89）产品概述
一、产品简介
HXY MOSFET（华轩阳电子）出品的78L08是一款固定输出型线性低压差稳压器（LDO），输入端最高耐压30V，固定输出电压8.0V，最大输出电流100mA。该器件为正极输出、单通道设计，SOT-89小封装，适合需要稳定8V电源且空间受限的应用场合。
二、主要性能与特点
- 输出电压：8.0V（固定）
- 最大输入电压：30V
- 最大输出电流：100mA
- 电源纹波抑制比（PSRR）：46dB @ 120Hz（对纹波抑制能力强）
- 输出噪声：54µV（低噪声，适合对干扰敏感的电路）
- 封装：SOT-89，尺寸小、易于安装
- 输出极性：正极，单通道输出
三、电气参数要点与热管理
- 尽管最大输入可达30V，但功耗随电压差和输出电流显著增加。功耗Pd ≈ (Vin − 8V) × Iout。例如在Vin = 30V、Iout = 100mA时，Pd ≈ 2.2W，这对于SOT-89封装来说热耗较大，需特别重视散热与环境温升。
- 建议工作时尽量减小Vin与Vout之间的差值，或在高电压条件下限制输出电流，必要时采用外部散热片或改用热性能更好的封装以确保可靠工作。
四、典型应用场景
- 传感器电源、参考电源：低噪声特性方便驱动精密模拟前端
- 小功率嵌入式设备、微控制器和接口电路的点对点稳压
- 工业控制与仪表的辅助电源
- 消费电子中对尺寸和成本敏感的固定电压供电场景
五、设计与使用建议
- 稳定性电容：在输入端靠近器件引脚放置0.1µF陶瓷旁路电容；输出端建议10µF左右的低ESR电容（钽电容或低ESR电解/陶瓷），有利于稳定性与瞬态响应。具体电容值和ESR应参照器件数据手册。
- 布局建议：输入旁路电容须尽可能靠近输入引脚放置，输出电容靠近输出引脚并良好接地；将热量导出路径（GND面或铜箔）做宽处理以帮助散热。
- 保护措施：若系统可能出现反向电压、输入瞬变或输出短路，建议在输入端添加适当的限流或过压保护电路，并考虑放置反向二极管保护LDO免受输出回灌损害。
六、封装与可靠性
SOT-89小封装便于表贴与空间受限的板级应用，但热阻较大。在长期高温或高压差工况下，应评估结温并采取必要散热措施。器件符合常见工业级使用需求，但具体温度范围与可靠性指标请参照HXY MOSFET提供的详细资料与规范。
七、选型与采购提示
在选型时，确认系统最大输入电压、最大负载电流及允许的功耗、散热条件。若负载电流经常接近100mA或输入与输出电压差较大，建议评估散热或选择更高功率封装/更低压降的LDO。采购时参考完整型号、批次和数据手册，确保器件为正品并关注封装为SOT-89。
如需典型电路图、测试数据或与替代器件的对比（如更低噪声或更低压差型号），可以提供具体应用场景，我可进一步给出具体设计建议。
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