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HGSEMI LM7805CT
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- HGSEMI LM7805CT
- Type
- HGSEMI
- Minimum package
- 1000 管
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 2V@(1A)
- Electronic Component
- HGSEMI
- Electronic Component
- 40uV
- Electronic Component
- LM7805CT
- Electronic Component
- 1
- Package
- TO-220
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 2.6g
- Electronic Component
- 1
- Electronic Component
- BM0227365049
- Operating Temperature
- 55℃~+150℃@(Tj)
- Operating Voltage
- 35V
- Output
- Electronic Component
- Output Voltage
- 5V
- Output Current
- 1.5A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
LM7805CT 产品概述
一、产品简介
LM7805CT（HGSEMI/华冠）是一款经典的线性固定输出正极稳压器，输出电压5V，单通道设计，适用于各类中低端电源稳压需求。器件内置短路保护和过热保护，工作可靠，适合对噪声和纹波有一定要求的模拟与数字电路供电。
二、主要参数
- 输出类型：固定（5.0V）
- 输出电流：最大 1.5A（持续负载能力视散热条件而定）
- 工作电压（输入）：最高 35V
- 压差（Dropout）：典型 2V @ 1A
- 静态电流（Iq）：约 8mA
- 电源纹波抑制比（PSRR）：62dB @ 120Hz
- 输出噪声：约 40µV
- 工作结温范围：-55°C ~ +150°C (Tj)
- 保护功能：短路保护、过热（热关断）保护
- 封装：TO-220（便于加装散热片）
三、保护与热管理
器件集成短路限流与热关断，当过载或输出短路时，内部保护动作以防止器件损坏。但保护是有限制性措施，长时间高功率耗散仍需外部散热管理。线性稳压器的功耗为(PD) = (Vin - 5V) × Iout，举例：Vin=12V，Iout=1A 时，PD=7W，必须采用合适散热片或良好PCB散热设计。
四、典型应用
- 单片机及数字电路5V供电
- 模拟前端与传感器供电（需注意噪声与PSRR）
- 工业控制模块、通信设备及通用电源模块
（非特殊汽车级认证器件，汽车使用需评估瞬态与规范）
五、设计要点与建议
- 推荐在输入端并联0.33µF（陶瓷）和适当电解电容以稳定输入，输出端并联0.1µF陶瓷与1µF以上电解电容以优化瞬态响应（参考具体应用和数据手册）。
- 保证Vin - Vout >= 压差（典型2V@1A）以维持稳压输出；低压差或高电流场合考虑采用低压差LDO或开关降压方案以减少耗散。
- TO-220 封装便于安装散热片，装配时注意绝缘与导热界面，使用导热膏提高热传导效率。
六、封装与订购信息
- 品牌：HGSEMI（华冠）
- 型号：LM7805CT
- 封装形式：TO-220（单通道）
购买时请参考厂方数据手册并确认批次与测试参数，必要时索取样片进行实际功率与热测试以确保设计可靠。
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