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YONGYUTAI 78M12
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- YONGYUTAI 78M12
- Type
- YONGYUTAI
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 2.5V@(350mA)
- Electronic Component
- YONGYUTAI
- Electronic Component
- 75uV
- Electronic Component
- 78M12
- Electronic Component
- 1
- Package
- TO-252-2
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.45g
- Electronic Component
- 1
- Features
- Electronic Component
- Electronic Component
- BM0228560703
- Operating Temperature
- 25℃~+125℃@(Tj)
- Operating Voltage
- 27V
- Output
- Electronic Component
- Output Voltage
- 12V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
78M12 产品概述
一、产品简介
78M12 是由 YONGYUTAI（永裕泰）推出的一款固定输出线性稳压器（LDO），输出电压为 12V，单通道设计，采用 TO-252-2 封装。器件集成短路保护，适用于对输出稳压、低噪声和高抑制电源纹波有要求的中低功率供电场合。
二、主要参数
- 输出电压：12V（固定）
- 输出电流：1A（最大）
- 工作电压：27V（器件最高输入工作电压，根据系统需求留有裕量）
- 压差（Dropout）：2.5V @ 350mA（随负载变化增大）
- 静态电流(Iq)：6mA
- 输出极性：正极
- 工作结温：-25°C ~ +125°C (Tj)
- PSRR：80dB @ 120Hz
- 噪声：75µV（典型）
- 保护特性：短路保护
- 封装：TO-252-2
三、关键特性说明
- 高抑制比：120Hz 下 80dB 的 PSRR 能有效抑制来自开关电源或变压器整流残余的低频纹波，保证后级电路稳定运行。
- 低噪声输出：75µV 级别噪声适合对模拟前端、传感器供电或精密参考电路的电源需求。
- 保护机制：内置短路/过流保护，提高系统可靠性并简化外围保护设计。
- 低静态电流：6mA 的静态电流在便携或功耗敏感系统中表现合理，但仍需评估待机功耗需求。
四、典型应用场景
- 工业控制模块和传感器供电
- 通信与网络设备的子供电轨
- 模拟/混合信号电路、放大器及数据采集前端
- 需要高 PSRR 和低噪声的嵌入式系统
五、封装与热管理
TO-252-2（金属散热引脚）封装利于 PCB 散热。1A 输出时，特别在高差压（Vin - Vout）工况下，器件会产生较大功耗：Pd = (Vin - 12V) × Iout。应通过增大铜箔面积、采用过孔通下层散热或外接散热板降低结温，确保工作结温不超过 125°C。
六、使用建议与注意事项
- 输入端建议使用低 ESR 滤波电容以抑制瞬态和提高稳定性；输出端按厂商推荐配置一定量的输出电容（如 10µF~47µF），优选低 ESR 类型。
- 在接近 1A 输出时，注意压差随电流上升可能导致输出逐步进入热限或压降限制，必要时选择更低压差或并联散热方案。
- 评估启动顺序与瞬态响应，必要时在输入端添加软启动或限流电路以保护上游电源。
- 在高温或高输入压差工况下，注意长期热应力对可靠性的影响，设计时保留足够的热裕度。
本概述基于器件主要参数与典型应用需求，具体电气特性和外部电容推荐请参照厂商详细数据手册与典型连接图进行最终设计验证。
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