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明达微MD7680EC0QA3是一款专为高压输入、低功耗场景设计的固定输出低压差线性稳压器(LDO)。该器件聚焦“宽压域覆盖、超低静态功耗、高电源纯净度”三大核心特性,适配工业控制、电池供电、车载辅助等多类对电源效率与稳定性要求较高的应用场景,凭借紧凑封装与完善保护机制,成为中小负载电源方案的优选器件。
支持最大60V输入电压,适配高压供电场景(如12V系统扩展、工业现场总线电源);同时兼容低电压输入(仅需输出电压+极小压差即可稳定工作),输入电压范围覆盖广,降低系统电源设计复杂度。
采用12V正极固定输出设计,无需外部电阻调整,输出电压精度稳定,避免电路调整环节带来的误差,简化PCB布局与BOM成本。
静态电流(Iq)仅2.3μA,远低于传统LDO的数十μA级功耗,特别适合电池供电设备(如无线传感器、手持仪器)的待机场景,可显著延长单次充电后的工作时长。
在1mA负载电流下,压差仅8mV(即输入电压只需12.008V即可稳定输出12V),实现“输入电压接近输出电压”时的高效稳压,避免因压差过大导致的功耗浪费,适配电池放电末期的电压维持需求。
电源纹波抑制比(PSRR)达80dB@100Hz,能有效衰减低频电源纹波,输出电压噪声极低,适合对电源纯净度敏感的电路(如模拟传感器、MCU核心供电),保障系统信号精度。
最大输出电流150mA,满足多数中小功率负载需求(如LED指示灯驱动、小型MCU、温湿度传感器模块),覆盖主流轻载应用场景。
采用SOT-23-3L封装(3引脚:VIN输入、VOUT输出、GND地),体积紧凑(约2.9×1.6×1.0mm),适合空间受限的PCB设计(如便携式设备、小型模块),同时简化焊接工艺。
工作温度范围覆盖**-40℃~+85℃**(环境温度Ta),适应工业环境的极端温度变化(如户外传感器、车间控制设备),满足车载辅助系统的温度要求。
基于明达微成熟的半导体制造工艺,器件一致性好,长期运行稳定性高,配合完善的保护机制,可有效降低系统故障率。
MD7680EC0QA3内置双重核心保护,提升系统安全性:
当输出电流超过额定150mA阈值时,自动限制输出电流,避免负载短路或过载导致的器件损坏,保护后端电路。
当器件结温超过预设阈值(典型值约150℃)时,自动关断输出,防止过热烧毁;待温度下降至安全范围后,自动恢复输出,无需手动复位,提升系统容错能力。
MD7680EC0QA3以“高压兼容、低耗高效、小体积”为核心亮点,为多场景电源设计提供了简洁可靠的解决方案,是中小负载稳压需求的高性价比选择。
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