WMSIC Electronic Components

XLSEMI XL2001E1

ModelXL2001E1
PackageSOIC-8
BrandXLSEMI
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
XLSEMI XL2001E1
Type
XLSEMI
Minimum package
4000

Technical parameters

Electronic Component
XLSEMI
Electronic Component
XL2001E1
Electronic Component
1
Package
SOIC-8
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.267g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0231133056
Operating Temperature
40℃~+125℃@(TJ)
Operating Voltage
8V~45V
Switching Frequency
128kHz~173kHz
Electronic Component
Electronic Component
Output Voltage
5V
Output Current
1.8A

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

XL2001E1 产品概述

一、产品简介

XL2001E1 是芯龙(XLSEMI)推出的一款高输入电压降压型 DC-DC 开关稳压器,输入电压范围宽(8V ~ 45V),输出为固定 5.0V,最大输出电流可达 1.8A。器件集成开关管(非同步整流),工作开关频率在 128kHz ~ 173kHz 之间,静态电流(Iq)仅 4.7mA,工作结温范围 -40℃ ~ +125℃ (TJ)。封装为 SOIC-8,适合汽车、工业及泛电源管理场合的中功率降压需求。

二、主要参数

  • 功能类型:降压型(Buck)
  • 输入电压范围:8V ~ 45V
  • 输出电压:固定 5.0V
  • 最大输出电流:1.8A
  • 开关频率:128kHz ~ 173kHz
  • 静态电流(Iq):4.7mA
  • 同步整流:否(需外接肖特基二极管)
  • 开关管:内置
  • 输出通道数:1
  • 工作温度:-40℃ ~ +125℃ (TJ)
  • 封装:SOIC-8
  • 品牌:XLSEMI(芯龙)

三、设计要点与推荐实践

  • 外部肖特基二极管:由于为非同步整流结构,需在 MOSFET 关断期间提供自由轮回路径。建议选用反向耐压高于最大输入电压、平均正向电流大于 1.8A、低正向压降的肖特基整流器(例如 2A 级别、VRRM ≥ 60V)。
  • 电感选择:为控制峰峰电流纹波,建议将电感选为使纹波电流约为输出电流的 20%~40%。可按公式估算: L = Vout*(Vin - Vout) / (ΔI * Vin * fsw) 其中 ΔI 取目标纹波电流,fsw 取器件工作频率范围内的典型值。
  • 电容选择:输入侧宜并联低 ESR 陶瓷电容与电解/固态电容以兼顾滤波与耐压(输入电容额定电压需大于最大输入);输出侧使用低 ESR 陶瓷或固态电容,容量根据纹波与瞬态要求选择,并留意温度/电压下容量衰减。
  • PCB 布局:开关结点(MOSFET、肖特基、输出电感与输出电容)应尽量贴近,减小回流环路面积以降低 EMI。VIN 到 GND 的输入电容应尽量靠近芯片输入引脚。
  • 效率与热管理:非同步整流在高电流或低压差时效率低于同步方案,需根据实际散热条件估算损耗并布置大面积铜箔或热沉,SOIC-8 通过底层铜平面和过孔可显著改善散热。

四、典型应用场景

  • 汽车电源模块(12V、24V 输入,供给 5V 逻辑/传感器)
  • 工业控制电源(宽电压供电、耐受瞬态)
  • 通信设备与监控终端的 5V 供电
  • 各类需要由高电压降到 5V 的嵌入式系统

五、注意事项

  • 器件为固定 5V 输出,若需要可调输出应搭配外部方案或选型其它系列。
  • 由于非同步整流的设计特性,在高输入电压或接近最大输出电流条件下,芯片发热和效率下降现象明显,设计时应留有余量(足够的散热与安全裕量)。
  • 在不同工作点(Vin、Io)下开关频率存在一定漂移,布局与 EMI 抑制需据此评估。

总结:XL2001E1 以其宽输入电压、高耐压能力和集成开关管的优势,适合车载与工业场景的 5V 降压供电解决方案。设计时注意肖特基选型、合适的电感、电容及良好的 PCB 布局与散热措施,即可获得稳定可靠的电源性能。

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