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UMW HT7140S
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- UMW HT7140S
- Type
- UMW
- Minimum package
- 3000 未知
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 100mV
- Electronic Component
- UMW
- Electronic Component
- HT7140S
- Electronic Component
- 1
- Package
- SOT-23(TO-236)
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.04g
- Electronic Component
- 1
- Features
- Electronic Component
- Electronic Component
- BM0264601587
- Operating Temperature
- 25℃~+70℃
- Operating Voltage
- 30V
- Output
- Electronic Component
- Output Voltage
- 4V
- Output Current
- 60mA；100mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
HT7140S 产品概述
一、产品简介
HT7140S 是友台半导体（UMW）推出的一款低功耗、低压差线性稳压器（LDO），为单通道固定输出型器件。器件提供正极性输出，标准输出电压为 4.0V，适合对噪声敏感和需延长待机寿命的便携式和电池供电应用。封装采用常见的 SOT-23（TO-236），便于表面贴装与批量生产。
二、主要规格特点
- 输出电压：固定 4.0V
- 输出电流：60mA / 100mA（型号或分档可选）
- 最大工作（输入）电压：30V
- 典型压差（Dropout）：≈100mV（低压差设计）
- 静态电流（Iq）：2μA（待机极低损耗）
- 保护功能：短路保护
- 工作温度范围：-25℃ ～ +70℃
- 输出通道数：1（单路）
- 封装：SOT-23（TO-236）
三、性能与应用场景
HT7140S 结合了超低静态电流和极低压差的优点，非常适合以下场合：
- 电池供电设备（手持终端、可穿戴、遥控器等），在待机/休眠状态下可最大限度延长使用时间；
- 对噪声与电源纯净度有要求的模拟前端、传感器和低速 ADC 供电；
- 无线模块、蓝牙设备以及小功率微控制器的稳压；
- 工业与消费电子中需简化电源设计的固定电压场合。
四、设计与布局注意事项
- 输入与输出端应靠近器件放置去耦电容。建议在 VIN 端和 VOUT 端分别配置适当的陶瓷电容（一般 1µF～10µF，依据系统稳定性测试确定），以保证稳压器稳定性与瞬态响应；
- 由于器件最大输入电压可达 30V，选择上游电源时应确保留有余量并避免超过器件绝对最大额定；
- 当输出接近额定电流时，器件压差和效率会影响发热，合理评估最坏工况下的功耗并做好散热设计；
- PCB 布局时尽量缩短输入/输出回路，使用较宽的铜箔以降低寄生阻抗并改善热传导。
五、热管理与可靠性
功耗 P = (Vin − Vout) × Iout，为估算器件发热的基本公式。举例：若 Vin = 5V、Vout = 4V、Iout = 100mA，则 P = 0.1W，SOT-23 封装通常可通过 PCB 铜箔散热满足该功耗，但在高环境温度或更大电压差、长时间满载时应评估结温并增加散热铜面积或考虑散热结构。器件内置短路保护，有助于在异常负载时降低损害风险。
六、典型电路与封装信息
HT7140S 为固定输出单片 LDO，外部最小元件数目少，典型接法为输入电容—LDO—输出电容，输入侧接入稳压或电池，输出直接供给负载。封装 SOT-23 有利于自动贴装与小体积 PCB 设计。产品适合批量采购与空间受限的消费电子、工业控制板。
总结：HT7140S 面向低功耗、低噪声与空间受限的应用场景，提供 4V 固定输出、超低静态电流与低压差表现，兼具短路保护与宽输入电压适应性，是电池供电设备与精密前端电源管理的理想选择。
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