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CJ CJ6211B18F
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CJ CJ6211B18F
- Type
- CJ
- Minimum package
- 10000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 50mV
- Electronic Component
- CJ
- Electronic Component
- CJ6211B18F
- Electronic Component
- 1
- Package
- DFNWB-4L(1x1)
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.013g
- Electronic Component
- 1
- Features
- Output
- Electronic Component
- BM0228089005
- Operating Temperature
- 0℃~+125℃@(Tj)
- Operating Voltage
- 6V
- Output
- Electronic Component
- Output Voltage
- 1.8V
- Output Current
- 700mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
CJ6211B18F 产品概述
一、产品简介
CJ6211B18F 是江苏长电（CJ）推出的一款超低压差线性稳压器（LDO），为固定输出型正极单通道器件。器件在 6V 工作电压下提供 1.8V 稳定输出，适用于对噪声和纹波抑制要求较高且对空间、功耗敏感的便携与嵌入式应用。
二、主要规格参数
- 输出类型：固定输出（1.8V）
- 输入电压：6V（工作电压）
- 额定输出电流：700mA
- 压差（Dropout）：典型 50mV（满载附近）
- 静态电流（Iq）：典型 50µA
- PSRR：80dB @ 1kHz
- 保护与控制：短路保护，EN（使能）控制引脚
- 工作结温：0℃ ~ +125℃ (@ Tj)
- 输出极性：正极
- 通道数：1
- 封装：DFNWB-4L (1.0 × 1.0 mm)
- 品牌：CJ（江苏长电/长晶）
三、性能亮点与优势
- 超低压差：约 50mV 的压差在高电流条件下可显著降低输入-输出电压差，适合低压差、延长电池寿命的场合。
- 高 PSRR：80dB@1kHz，能够有效抑制电源纹波与开关噪声，利于模拟电路与 RF 前端供电。
- 低静态功耗：典型 50µA 静态电流适合待机/低功耗模式，延长电池续航。
- 完善保护与控制：内置短路保护和使能控制，可实现快速上电管理与异常保护。
四、典型应用场景
- 手持设备与可穿戴终端：为 MCU、传感器或射频模块提供低噪声电源。
- 通信设备前端：对 PSRR 要求高的射频放大器偏置电源。
- 工业与物联网节点：要求工作温度宽、具保护功能的电源管理。
- 电池供电系统：低压差与低静态电流特性有利于延长使用时间。
五、封装与热设计注意事项
DFNWB-4L（1×1mm）小型封装便于高密度 PCB 设计，但散热能力有限。建议：
- 在 PCB 下层增加铜箔散热垫并连通地平面，以提高热传导。
- 在大电流工况下关注结温上升，必要时限制输出电流或采用热保护措施。
- 输出与输入旁路电容靠近引脚放置，减少寄生阻抗。
六、使用建议
- 输出旁路：推荐使用低 ESR 陶瓷电容（如 1–10µF），具体容量与 ESR 参照器件资料确定。
- 使能控制：EN 引脚高电平使能，低电平关断，便于系统电源序列管理。
- 布局：输入电容靠近 VIN，输出电容靠近 VOUT，地线短且粗，减小噪声与热阻。
总结：CJ6211B18F 以超低压差、高 PSRR、低静态电流与紧凑封装为特色，适合对噪声、功耗与空间均有严格要求的现代电子设备。设计时需重视热管理与旁路电容选择，以确保长期稳定工作。
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