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CJ CJ8850
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CJ CJ8850
- Type
- CJ
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 500mV
- Electronic Component
- CJ
- Electronic Component
- CJ8850
- Electronic Component
- 1
- Package
- SOT-89-3L
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.178g
- Electronic Component
- 1
- Electronic Component
- BM0228175816
- Operating Temperature
- 40℃~+125℃@(Tj)
- Operating Voltage
- 60V
- Output
- Electronic Component
- Output Voltage
- 5V
- Output Current
- 150mA
- Output Type
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
CJ8850 产品概述
一、主要特性
CJ8850 是一款固定输出的线性稳压器（LDO），输出电压为 5.0V，输入耐压高达 60V，静态电流仅 5µA，适合低功耗与高压输入场景。器件集成使能控制、过流保护、短路保护与热关断功能，保障长期可靠性与系统安全。输出极性为正极，稳压压差典型值约 500mV，常用工作温度范围为 -40℃ 到 +125℃（结温 Tj）。
二、电气性能要点
- 输出电流：额定连续输出约 150mA，器件可承受短时/峰值较高电流（资料中亦见 250mA 级别说明，实际设计中应按连续额定值 150mA 考量并参考数据手册）。
- 输出纹波抑制（PSRR）：约 80dB（1kHz），对电源纹波与开关噪声有良好抑制，利于模拟/音频和精密采样电路。
- 低静态电流：5µA，有利于电池供电系统降低待机损耗。
- 保护功能：内部限流与短路保护，同时具备热关断，异常工况下自动保护并在条件恢复后重启。
三、封装与热管理
CJ8850 提供 SOT-89-3L 封装，体积小适合集成密集板。由于为线性稳压器，功耗由 VIN–VOUT 与输出电流共同决定（Pd = (VIN - 5V) × IOUT）。在高输入电压或大电流条件下，结温上升显著，需注意散热与版面铜箔面积分布。建议在 VIN 与 GND 之间增加散热铜、避免长时间在高差与满载条件下工作，必要时采用预稳压或降压转换器以减少功耗。
四、使用建议
- 输出电容：为保证稳态与瞬态响应，建议在输出端放置低 ESR 陶瓷电容，典型值 1µF–10µF（最终值应参考器件数据手册的稳定性要求）。
- 输入电容：在高 VIN 或长引线情况下，靠近芯片放置适当的输入电容以抑制来自源侧的瞬态与振铃。
- 使能控制：通过 EN 引脚实现系统电源管理，可在不使用时将 LDO 关闭以进一步降低静态电流消耗。
- 保护与可靠性：器件自带限流与热关断，但在恶劣工况（短路、长期高差）应设计额外保护与热散措施，保证产品寿命与安全。
五、典型应用
适用于需要高输入耐压且要求稳健保护的场景，如工业控制电源、小型通讯终端、传感器供电、汽车电子辅助电路（需通过相应汽车认证）、低功耗便携设备等。对于大电压差且高功耗的应用，优先考虑开关预稳压以提升效率并减小热量。
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