WMSIC Electronic Components

WILLSEMI WL2848E33-5/TR WL2848E33

ModelWL2848E33-5/TR
PackageSOT-23-5L
BrandWILLSEMI
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WILLSEMI WL2848E33-5 / TR
Type
WILLSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
200mV@(300mA)
Electronic Component
WILLSEMI
Electronic Component
WL2848E33-5/TR
Electronic Component
1
Package
SOT-23-5L
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.041g
Electronic Component
1
Features
Built-in;;;;; Output
Electronic Component
BM0227692176
Operating Temperature
40℃~+125℃@(Tj)
Operating Voltage
5.5V
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.

WL2848E33-5/TR 产品概述

一、概述

WL2848E33-5/TR 是 WILLSEMI(韦尔)推出的一款固定输出 3.3V 的低压差线性稳压器(LDO),单通道、正输出,输出电流最高可达 300mA。器件支持使能(EN)功能,并集成过热保护与短路保护,适合对电源噪声要求高且对尺寸、功耗有严格限制的便携与嵌入式应用。封装为常见的 SOT-23-5L,便于在小型 PCB 上使用。

二、主要电气性能

  • 输入电压(最大):5.5V(工作电压条件)
  • 输出电压:固定 3.3V
  • 最大输出电流:300mA
  • 压差(Dropout):典型 200mV @ 300mA,适合低压差供电场景
  • 静态电流(Iq):105µA(静态耗电低,利于电池供电)
  • 电源纹波抑制比(PSRR):74dB @ 1kHz,能有效抑制中频纹波与噪声,利于 RF/ADC 等敏感电路
  • 输出极性:正极,单通道输出

三、保护与可靠性

WL2848E33-5/TR 集成多重保护机制:

  • 使能(EN)引脚:高电平使能输出,低电平关断,方便系统电源管理与待机控制;可由 MCU 控制或直接接 VIN 启用。
  • 短路保护:在输出短路或过流情况下进入限制模式,保护器件与电源。
  • 过热保护:当结温超过安全阈值时自动关断,待温度恢复后自动重启,增强可靠性。
    额定工作结温范围:-40℃ 到 +125℃(Tj),适应工业级温度需求。

四、封装与热设计要点

  • 封装:SOT-23-5L,适合空间受限应用。
  • 热管理提示:线性稳压器的功耗等于 (VIN - VOUT) × IOUT。举例在 VIN=5.5V、VOUT=3.3V、IOUT=300mA 时,功耗约为 0.66W,此功耗在小封装中会导致结温快速上升。建议在 PCB 设计时:
    • 增加散热铜面积(VIN、GND 引脚周围加大铜箔),使用多层板并连通散热层;
    • 尽量降低输入电压差以减少功耗(在满足 dropout 要求下选择最低可行 VIN);
    • 对于持续高电流场景做热仿真或实际测试并在必要时限制连续输出电流。

五、典型应用与使用建议

  • 典型应用:便携设备、物联网终端、传感器与数据采集模块、MCU 电源、射频前端/收发器供电(因高 PSRR)、工业控制模块等。
  • 外围电容:为保证稳压器稳定与低噪声输出,建议在 VIN 与 VOUT 端各放置贴近引脚的去耦电容。常见做法为输入端 1µF10µF 的陶瓷电容,输出端使用 2.2µF10µF 低 ESR 陶瓷电容(具体值与 ESR 范围请参照详细数据手册)。
  • 布局要点:输入与输出电容尽量靠近相应引脚并与地短路回流,EN 引脚布线避免长线和噪声耦合,地线采用单点或适当的地平面以降低环路阻抗。
  • 故障处理:短路或过热发生时,器件进入保护状态,系统应设计复位与重启策略以避免频繁循环导致热应力。

六、订购与资料

  • 型号:WL2848E33-5/TR
  • 品牌:WILLSEMI(韦尔)
  • 封装:SOT-23-5L
  • 采购或设计时请参考官方数据手册获取完整引脚定义、典型电路、绝对最大额定值及典型曲线,以确保在目标应用的电气与热条件下安全可靠运行。

如需参考电路图、详细引脚排列或与同类器件(不同封装或可调输出版本)比较,可提供具体需求以便进一步补充。

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