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Siproin SSP7903P12PR
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Siproin SSP7903P12PR
- Type
- SIPROIN
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 1.5V@(1A)
- Electronic Component
- SIPROIN
- Electronic Component
- SSP7903P12PR
- Electronic Component
- 1
- Package
- SOT-89-3L
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.19g
- Electronic Component
- 1
- Electronic Component
- BM0230856481
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 40V
- Output
- Electronic Component
- Output Voltage
- 12V
- Output Current
- 1A
- Output Type
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SSP7903P12PR 产品概述
一、产品简介
SSP7903P12PR 是上海矽朋（Siproin）推出的一款高压差线性稳压器（LDO），为固定输出型，输入耐压最高可达40V，输出电压为12V，最大输出电流1A，典型压差（dropout）为1.5V@1A。器件采用SOT-89-3L 小封装，适合对体积敏感且需稳定12V电源的电路设计。
二、主要特性
- 输出类型：固定12V，单通道（正极输出）。
- 工作电压：最高可承受40V输入。
- 输出电流：最大1A，具有过流保护（OCP）。
- 保护功能：过热保护（OTP）、过流保护、短路保护（SCP）。
- 压差：1.5V（1A负载条件下），低压差有助于提高效率。
- 工作环境：-40℃～+85℃，适合工业级应用。
- 封装：SOT-89-3L，便于通孔与贴片混合工艺。
三、典型应用
- 工业控制与自动化设备的12V本地稳压。
- 输入电压较高的电源轨降压（如电池组、分布式电源）。
- 通信设备、传感器模块以及外围模拟电路的稳压电源。
注：若输入电压远高于12V且负载接近1A，需注意器件功耗与散热限制。
四、散热与使用建议
线性稳压器的功耗等于(VIN−VOUT)×IOUT。若VIN=40V、VOUT=12V、IOUT=1A，则器件需消耗约28W，SOT-89 无法承受此类高热量。建议：
- 设计时尽量降低VIN与VOUT差值，或采用前端降压（开关稳压）+ LDO 的组合。
- 在高功率场合使用散热片或更大封装的器件。
- 推荐输入电容：10µF 以上低ESR 电解/固态电容；输出电容：10µF~100µF，确保稳态与瞬态响应，依据厂家建议选择合适的ESR 值。
五、典型连接与注意事项
典型接法：VIN → CIN → VIN 引脚；GND 共地；VOUT → COUT → 负载。
注意：保持输入/输出走线短且粗，增大接地平面以利散热与稳定。上电时避免长时间短路输出，虽然器件具有保护电路，但持续异常工况仍可能导致热累积。
六、封装与选型提示
SOT-89-3L 小型封装适合轻量级散热需求的场合；若系统中存在大电压差或持续大电流，应优先考虑功耗更强的封装或使用降压转换器与LDO 结合的方案。下单时请确认完整料号（SSP7903P12PR）、封装与温度等级，向供应商索取完整数据手册以获取详细电气参数和布局建议。
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