WMSIC Electronic Components

CJ CJ6388B50M

ModelCJ6388B50M
PackageSOT-23-5L
BrandCJ
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
CJ CJ6388B50M
Type
CJ
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
500mV
Electronic Component
CJ
Electronic Component
CJ6388B50M
Electronic Component
1
Package
SOT-23-5L
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.048g
Electronic Component
1
Electronic Component
BM0228151801
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.

CJ6388B50M 产品概述

一、产品简介

CJ6388B50M 是江苏长电(CJ/长晶)推出的一款高输入耐压线性稳压器(LDO),提供固定 5.0V 输出,单通道输出,适用于高压输入场景的低噪声稳压需求。器件工作温度范围宽(-40℃ ~ +125℃,以结温 Tj 计),静态电流极低,仅 3μA,具有短路保护、过流保护、热关断和使能控制等实用保护与控制功能,封装为 SOT-23-5L,便于小尺寸 PCB 设计与批量贴装。

备注:资料中对最大输出电流存在不一致描述(有 150mA 与 250mA 两种说法),请以厂家最新数据手册为准。

二、关键参数一览

  • 输出类型:固定 5.0V 正极输出
  • 最大工作输入电压:60V
  • 输出电流:资料标注 150mA / 250mA(请参见数据手册)
  • 压差(Dropout):典型 500mV(满载条件下)
  • 静态电流(Iq):3μA(低静态功耗,适合待机/低功耗系统)
  • PSRR:80dB @ 1kHz(优良的纹波抑制能力)
  • 保护功能:短路保护、过流保护、热关断
  • 控制:使能(EN)引脚,支持外部开关控制
  • 工作温度:-40℃ ~ +125℃(Tj)
  • 封装:SOT-23-5L,单通道

三、主要特性与优势

  • 高输入耐压:支持最高 60V 输入,适用于工业电源、48V/60V 总线或汽车瞬态场景(需满足汽车规范时请核对 AEC 要求)。
  • 低静态电流:3μA 的静态电流对电池供电和待机功耗敏感的系统非常友好。
  • 高 PSRR:在 1kHz 处约 80dB,能有效抑制电源纹波与开关噪声,适合对噪声敏感的模拟或射频前端应用。
  • 完善保护:内置短路/过流/热关断保护,提高系统可靠性,简化外围保护电路设计。
  • 紧凑封装:SOT-23-5L,适合空间受限的工业或消费类产品。

四、典型应用场景

  • 工业控制电源(48V/60V 总线后降压)
  • 通信设备、交换机、电源模块的本地5V供电
  • 仪表、传感器及数据采集前端的低噪声稳压供电
  • 需低待机电流的电池备电或监控模块(注意输入与功耗匹配)
  • 汽车电子(需核对汽车级认证与瞬态要求)

五、设计建议与注意事项

  • 热耗散计算:线性稳压器的功耗 Pd = (Vin - Vout) × Iout。例如在高输入电压且较大电流条件下,Pd 会显著增加,需通过增加 PCB 铜箔面积、散热铜地或并联散热路径来降低结温,或在大压差/大电流场合考虑前端开关降压以减小功耗。
  • 输出稳定性:请按照厂家建议配置输入/输出旁路电容(低 ESR 电容通常有利于稳定性与瞬态响应),具体容量与 ESR 要求请参阅数据手册。
  • 使能控制:EN 引脚用于软开启/关闭,方便系统上电排序与节能,EN 的电平阈值与驱动能力请参考规格书。
  • 长期可靠性:在高 Vin 或瞬态环境中,注意器件的最大功耗与结温限制,避免长期在高功耗工况下工作。

六、封装与焊接

SOT-23-5L 封装利于小体积设计与自动贴片生产。焊接工艺遵循常规无铅回流规范,焊盘与热散设计应参考封装推荐图与热阻参数,以优化热性能与可靠性。

总结:CJ6388B50M 以高输入耐压、低静态电流及良好 PSRR 为特点,适合在高压输入且对噪声或功耗有特殊要求的应用场景。最终选型与布局请结合厂家数据手册进行详细验证。

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