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JSMSEMI L7812CV-JSM L7812CV
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- JSMSEMI L7812CV-JSM
- Type
- JSMSEMI
- Minimum package
- 50 管
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 2V@(1A)
- Electronic Component
- JSMSEMI
- Electronic Component
- 75uV
- Electronic Component
- L7812CV-JSM
- Electronic Component
- 1
- Package
- TO-220-3
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 2.642g
- Electronic Component
- 1
- Electronic Component
- BM0258741999
- Operating Temperature
- 20℃~+150℃@(Tj)
- Operating Voltage
- 35V
- Output
- Electronic Component
- Output Voltage
- 12V
- 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.
L7812CV-JSM 产品概述
一、产品简介
L7812CV-JSM 是 JSMSEMI（杰盛微）推出的一款固定输出线性稳压器，输出为正极 12V，最大输出电流 1.5A，采用标准 TO-220-3 封装。器件集成了过热保护，适合对稳定电源、低噪声和纹波抑制有一定要求的电源前端与辅助电路。
二、主要性能参数
- 输出类型：固定（12V 正极）
- 最大输出电流：1.5A
- 工作电压范围：最高 35V（输入电压应高于输出电压加压差）
- 压差（Dropout）：2V @ 1A（参考值）
- 静态电流 Iq：8mA
- 电源纹波抑制比 PSRR：55dB @ 120Hz
- 输出噪声：约 75μV
- 保护特性：过热保护（热关断）
- 工作温度：-20℃ ~ +150℃（Tj 标注）
- 通道数：1 路
三、封装与引脚说明
封装：TO-220-3（散热片便于外接散热器）
典型引脚排列（面向器件正面，散热片在背面）：
- 输入（IN） 2. 地（GND） 3. 输出（OUT）
四、应用建议与注意事项
- 最小输入电压约为 14V（12V 输出 + 2V 压差），实际应用中应预留余量以应对负载与温升。
- 功耗计算：Pd = (Vin - 12V) × Iout；在高 Vin 或大电流时需做好散热设计，热阻与散热片选择直接影响输出能力与可靠性。
- 建议在输入侧并联 0.33μF 至 1μF 的去耦电容，输出侧并联 0.1μF 至 10μF 的电容以保证稳定性与瞬态响应（根据负载特性调整）。
- 静态电流 8mA 对电池供电场景会产生额外负载，移动/便携设备需评估待机功耗。
五、典型应用场景
适用于工业控制模块、嵌入式系统供电、传感器/模拟前端电源、功率放大器偏置及各类需低噪声、良好纹波抑制的 12V 直流电源场合。
六、热管理与可靠性建议
- 在高功耗工况（如 Vin-12V 较大且 Iout 接近 1.5A）必须采用合适散热器或风冷，必要时计算结壳温升并保证结温低于额定值。
- 器件内置过热保护能在短时异常工况下保护器件，但不应作为长期无散热设计的替代手段。
总结：L7812CV-JSM 提供稳定、低噪声的 12V 输出和良好的纹波抑制，适合对电源质量有要求的中低功率应用。设计时重视输入电压裕量与散热处理，可发挥其最佳性能。
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