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MD85EF0PA1是明达微推出的一款高压输入固定输出线性稳压器(LDO),专为需要高输入电压、低静态电流、低噪声供电的场景设计,具备工业级温度适应性与完善的保护机制,可满足工业控制、通信设备等领域的电源转换需求。
本产品定位为高压小电流固定输出LDO,核心优势体现在以下三点:
PSRR(电源纹波抑制比)为79dB@100Hz,表明对100Hz低频纹波的抑制能力较强,可降低电源噪声对敏感电路(如模拟前端、射频收发器)的干扰,提升系统信号质量。
静态电流仅1.5μA,远低于传统LDO(通常数十μA级别),即使系统处于待机状态,也能最大程度延长电池续航时间,适合无线传感器、手持设备等电池供电场景。
工作温度范围为**-40℃~+85℃**,符合工业级温度标准,可在低温(如北方户外设备)、高温(如密闭机箱内)环境下稳定工作,无需额外散热设计。
MD85EF0PA1采用SOT-89-3封装,这是一种紧凑的表面贴装封装,尺寸约为2.9mm×2.6mm×1.5mm(典型值),引脚布局为3引脚(输入IN、输出OUT、地GND),便于PCB布局优化,适合高密度电路设计(如小型工业模块、便携式设备)。
本产品内置过流保护(OCP) 功能:当输出电流超过阈值(约350mA~400mA,典型值)时,自动进入限流模式,防止负载短路或过载导致器件损坏;同时,工业级温度范围与稳定的电气特性,确保长期工作可靠性,降低系统维护成本。
MD85EF0PA1适用于以下场景:
典型应用电路仅需少量外部元件,设计简洁:
(注:若输入电压波动较大,可适当增加输入电容容量至1μF,进一步优化纹波抑制效果。)
MD85EF0PA1凭借高压输入、超低静态电流、高PSRR与工业级可靠性,成为工业控制、通信、电池供电等领域中小功率稳压的优选器件,可有效简化电源设计,提升系统稳定性。
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