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SHIKUES 78L05S
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- SHIKUES 78L05S
- Type
- SHIKUES
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 1.7V
- Electronic Component
- SHIKUES
- Electronic Component
- 42uV
- Electronic Component
- 78L05S
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.035g
- Electronic Component
- 1
- Electronic Component
- BM0265438433
- Operating Temperature
- 40℃~+125℃@(Tj)
- Operating Voltage
- 20V
- Output
- Electronic Component
- Output Voltage
- 5V
- Output Current
- 100mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
78L05S 产品概述
一、产品简介
78L05S 是时科（SHIKUES）推出的一款固定输出线性稳压器（LDO），输入电压可达 30V，输出固定 5V，最大输出电流 100mA，采用 SOT-23 小封装，面向体积受限的低功耗电子设备，为单通道正压稳压需求提供简洁可靠的电源解决方案。
二、主要规格
- 输出类型：固定（5.0V）
- 输入电压范围：最高 30V（额定工作电压 20V 环境下兼容）
- 输出电流：最大 100mA
- 压差（Dropout）：1.7V（典型值，负载相关）
- 静态电流 Iq：3.8mA
- 电源纹波抑制比 PSRR：49dB @ 120Hz
- 输出噪声：42µV（典型）
- 工作温度：-40℃ ～ +125℃（结温 Tj）
- 输出极性：正极、单通道
- 封装：SOT-23
三、特性与优势
- 小尺寸封装（SOT-23），适合便携与空间受限设计。
- 较高的输入耐受电压（30V），便于直接从较高电压轨降压。
- 良好的纹波抑制（49dB@120Hz）和低输出噪声（42µV），适用于对噪声敏感的模拟与数模混合系统。
- 低静态电流 3.8mA，有利于降低待机功耗（注：非超低待机类型，需根据系统功耗预算评估）。
四、典型应用
- 工业控制与传感节点的 5V 供电
- 小型消费电子、便携仪表、显示模块电源
- MCU、传感器前端以及低功率模拟电路的局部稳压
- 汽车电子辅助电源（须确认整机环境与认证需求）
五、封装与引脚（SOT-23）
SOT-23 小封装便于表面贴装与批量生产，热阻和散热能力有限，设计时需关注 PCB 散热与铜箔面积，以保证在接近 100mA 输出时的热性能。
六、使用建议与注意事项
- 为保证稳定与低噪声输出，建议在输入端和输出端分别放置适当的去耦电容（如输入 0.1–10µF，输出 1–10µF，优先选用低 ESR 电容），并靠近引脚布局。
- 留意压差 1.7V，要确保输入电压在最大负载下仍高于输出电压加压差的要求。
- 因封装与功耗限制，在高输出电流或高 Vin 情况下需做热仿真并扩展 PCB 散热区，必要时降低负载或选择功率裕量更大的器件。
- 常见 LDO 会包含限流与热关断保护，具体保护阈值与行为请以器件数据手册为准。
总结：78L05S 是一款面向中低功率应用的固定 5V 线性稳压器，具备较高输入耐压、良好 PSRR 与低噪声表现，适合体积受限且对电源质量有一定要求的场景使用。使用前请参阅完整数据手册以确认具体电气参数和应用建议。
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