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662K
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- YONGYUTAI 662K
- Type
- YONGYUTAI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YONGYUTAI
- Electronic Component
- 30uVrms
- Electronic Component
- 662K
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.03g
- Electronic Component
- 1
- Features
- Electronic Component
- Electronic Component
- BM0264770661
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 8V
- Output
- Electronic Component
- Output Voltage
- 3.3V
- Output Current
- 300mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
662K 高精度低功耗三端正电压调节器（YONGYUTAI 永裕泰）产品概述
一、产品简介
662K 系列为永裕泰（YONGYUTAI）推出的一款高精度、低功耗三端正电压稳压器，采用 CMOS 工艺与激光微调技术制造。该器件为固定输出单通道设计，适用于要求低噪声、低静态电流和良好电源抑制比的便携与工业应用，可提供较大输出电流且具有极小压降（低压差）特性。
二、主要规格与性能
- 输出极性：正极
- 工作电压（最大输入）：8V
- 输出电压（示例）：3.3V（该系列可在 1.2V～5.0V 范围内以 0.1V 步进激光微调）
- 输出电流：300mA（典型）
- PSRR（电源纹波抑制比）：55dB
- 静态电流 Iq：5µA
- 输出噪声：30µVrms
- 功能特性：短路保护（折返限流）
- 工作温度：-40℃ ～ +85℃
- 输出类型：固定输出，单通道
- 封装：SOT-23
三、内部结构与工艺
内部由限流器、驱动晶体管、精密参考电压源与误差放大校正电路构成。采用激光微调实现输出电压的高精度内部校准（1.2V–5.0V，0.1V 增量），CMOS 工艺保证静态电流低、噪声小和良好的热稳定性。
四、保护与兼容特性
- 折返限流电路实现短路保护与输出电流限制，提升系统可靠性。
- 与低 ESR 陶瓷电容兼容，可使用 1µF～10µF 的陶瓷输出去耦以获得最佳瞬态响应与稳定性。
五、封装与热设计要点
SOT-23 小封装适合空间受限场合，但须注意热量管理：
- 长时间接近满载（300mA）时需计算功耗 P = (Vin − Vout) × Iout，并评估 PCB 铜箔与散热能力。
- 输出电容尽量靠近输出引脚放置，输入端也应放置合适去耦电容以抑制瞬态。
- 布局避免长回流路径，减少寄生电感和压降。
六、典型应用与选型建议
适用场景：电池供电设备、物联网节点、便携式仪表、传感器与 MCU 电源、低噪声模拟前端等。
选型提示：确保 Vin 保持在 Vout + 最低压差以上并低于器件最大工作电压（8V）；当需长时间大电流输出时评估热沉或加大 PCB 散热面积。
七、典型电路连接要点
- 在输入端并联适当容量的陶瓷电容（如 1µF～4.7µF），靠近器件放置。
- 输出端使用低 ESR 陶瓷电容（1µF～10µF），短引线以保证稳定与低噪声。
- 若系统对瞬态或纹波有更高要求，可在输出加小容量并联滤波电路或 LC 滤波器。
662K 系列以其低静态电流、低噪声、良好 PSRR 与可靠的短路保护，适合电源受限且对性能有较高要求的电子产品。若需进一步的电气特性曲线、热阻数据或应用参考电路，可提供详细数据手册与参考设计。
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